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5
                                                   The third stage
                                                   of labour

Before you begin this unit, please take the        THE NORMAL THIRD
corresponding test at the end of the book to
assess your knowledge of the subject matter. You   STAGE OF LABOUR
should redo the test after you’ve worked through
the unit, to evaluate what you have learned
                                                   5-1 What is the third stage of labour?
                                                   The third stage of labour starts immediately
 Objectives                                        after the delivery of the infant and ends with
                                                   the delivery of the placenta and membranes.
 When you have completed this unit you
                                                   5-2 How long does the normal
 should be able to:
                                                   third stage of labour last?
 • Define the third stage of labour.
 • Manage the third stage of labour.               The normal duration of the third stage of
                                                   labour lasts less than 30 minutes, and mostly
 • List the observations needed during the
                                                   only two to five minutes.
   third stage of labour.
 • Examine a placenta after delivery.              5-3 What happens during the
 • Manage a patient with prolonged third           third stage of labour?
   stage of labour.
                                                   1. Uterine contractions continue, although
 • Manage a patient with retained                     less frequently than in the second stage.
   placenta.                                       2. The uterus contracts and becomes smaller
 • List the causes of postpartum                      and, as a result, the placenta separates.
   haemorrhage.                                    3. The placenta is squeezed out of the upper
 • Manage a patient with postpartum                   uterine segment into the lower uterine
                                                      segment and vagina. The placenta is then
   haemorrhage.
                                                      delivered.
 • Prevent infection of the staff with HIV at      4. The contraction of the uterine muscle
   delivery.                                          compresses the uterine blood vessels and
                                                      this prevents bleeding. Thereafter, clotting
                                                      (coagulation) takes place in the uterine
                                                      blood vessels due to the normal clotting
                                                      mechanism.
THE THIRD STAGE OF LABOUR         91


5-4 Why is the third stage                           1. Blood loss is less than when the active
of labour important?                                    method is used. Therefore the active
                                                        method reduces the incidence of
Excessive bleeding is a common complication
                                                        postpartum haemorrhage.
during the third stage of labour. Therefore,
                                                     2. There is less possibility that oxytocin will
the third stage, if not correctly managed,
                                                        be needed to contract the uterus following
can be an extremely dangerous time for the
                                                        the third stage of labour.
patient. Postpartum haemorrhage is the
commonest cause of maternal death in some            Disadvantages:
developing countries.
                                                     1. The person actively managing the third
                                                        stage of labour must not leave the patient.
 The third stage of labour can be a very dangerous      Therefore, an assistant is needed to give the
 time and, therefore, must be correctly managed.        oxytocic drug and examine the newborn
                                                        infant, while the person conducting the
                                                        delivery continues with the management of
                                                        the third stage of labour.
MANAGING THE THIRD                                   2. The risk of a retained placenta is increased
STAGE OF LABOUR                                         if the active method is not carried out
                                                        correctly, especially if the first two
                                                        contractions after the delivery of the infant
5-5 How should the third stage                          are not used to deliver the placenta.
of labour be managed?                                3. Excessive traction on the umbilical cord
                                                        can result in inversion of the uterus,
There are two ways of managing the third
                                                        especially if the fundus of the uterus is not
stage of labour:
                                                        supported by placing a hand above the
1. The active method.                                   bladder on the abdomen.
2. The passive method.
Whenever possible, the active method should           Blood loss during the third stage of labour is less
be used. However, midwives conducting                 when the active management is used.
deliveries alone, without an assistant, in a
midwife obstetric unit or level 1 hospital
may use the passive method. Midwives who             5-6 What is the active management
choose to use the passive method of managing         of the third stage of labour?
the third stage of labour MUST also be able          1. Immediately after the delivery of the
to confidently use the active method, as this           infant, an abdominal examination is done
method may have to be used in some patients.            to exclude a second twin.
                                                     2. An oxytocic drug is given if no second
                                                        twin is present.
 Everybody conducting a delivery must be able
                                                     3. When the uterus contracts controlled cord
 to use the active method of managing the third
                                                        traction must be applied:
 stage of labour.                                       • Keep steady tension on the umbilical
                                                            cord with one hand.
5-6 What are the advantages and                         • Place the other hand just above the
disadvantages of the active method of                       symphysis pubis and push the uterus
managing the third stage of labour?                         upwards.
                                                        Controlled cord traction is also called the
Advantages:
                                                        Brandt–Andrews method (manoeuvre).
92    INTRAPAR TUM CARE



4. Placental separation will take place when
                                                     Oxytocin is the drug of choice in the
   the uterus contracts. When controlled
   cord traction is applied the placenta will be
                                                     management of the third stage of labour.
   moved down from the upper segment to
   the lower segment of the uterus.                 5-9 What are the actions of the two
5. Once this occurs, continuous light               components of syntometrine?
   traction on the umbilical cord will now
                                                    1. Oxytocin causes physiological uterine
   deliver the placenta from the lower
                                                       contractions which start two to three
   uterine segment or vagina.
                                                       minutes after an intramuscular injection
6. If placental separation does not take place
                                                       and continue for approximately one to
   during the first uterine contraction after
                                                       three hours.
   giving the oxytocic drug, wait until the
                                                    2. Ergometrine causes a tonic contraction of
   next contraction occurs and then repeat
                                                       the uterus which starts five to six minutes
   the manoeuvre.
                                                       after an intramuscular injection and
With the passive method of managing the                continues for about three hours.
third stage of labour, the patient is asked
to bear down only after there are signs of          5-10 What are the contraindications
placental separation. An oxytocic drug is only      to the use of syntometrine?
given after the placenta has been delivered.
                                                    Syntometrine contains ergometrine and,
                                                    therefore, should not be used if:
5-8 Which oxytocic drug is usually given
during the third stage of labour?                   1. The patient is hypertensive. Ergometrine
                                                       causes vasospasm which may result in a
One of the following two drugs is generally
                                                       severe increase in the blood pressure.
given:
                                                    2. The patient has heart valve disease.
1. Oxytocin (Syntocinon ) 10 units. This is            Tonic contraction of the uterus pushes a
   given intramuscularly. It is not necessary          large volume of blood into the patient’s
   to protect this drug against direct light.          circulation, which may cause heart failure
   Although the drug must also be kept in a            with pulmonary oedema.
   refrigerator, it has a shelf life of one month
   at room temperature.
2. Syntometrine. This is given by                    Make sure that there are no contraindications
   intramuscular injection. Syntometrine is          before using syntometrine.
   supplied in a 1 ml ampoule which contains
   a mixture of five units oxytocin and 0.5         5-11 What oxytocic drug should be
   mg ergometrine maleate. The drug must            used if there is a contraindication
   be protected from direct light at all times      to the use of syntometrine?
   and must be kept in a refrigerator. The
   ampoules must, therefore, be kept in an          Oxytocin (Syntocinon) should be used. An
   opaque container in the refrigerator.            intravenous infusion of 10 units oxytocin in
                                                    200 ml normal saline is given at a rate of 30
Oxytocin (Syntocinon) is the drug of choice.        drops per minute or 10 units oxytocin are
However, as Syntometrine is still widely            given by intramuscular injection.
prescribed, the correct use of this drug will
also be explained.                                  5-12 Should the umbilical cord be allowed
The latest information in the Cochrane Review       to bleed before the placenta is delivered?
indicates that the best drug and dosage to use      1. The umbilical cord must not be allowed to
is oxytocin 10 units.                                  bleed after the delivery of the first infant
THE THIRD STAGE OF LABOUR         93


   in a multiple pregnancy. In identical twins        •   A short note on the suturing of an
   with a single placenta (monochorionic                  episiotomy or perineal tear.
   placenta), the undelivered second twin             • The patient’s pulse rate, blood pressure
   may bleed to death if the umbilical cord               and temperature.
   of the first born infant is allowed to bleed.      • The completeness of the placenta
   Therefore, the forceps should be left in               and membranes, and any placental
   place on the umbilical cord after the                  abnormality.
   delivery of the first twin.                     3. Recordings made during the first hour
2. The umbilical cord should be allowed               after the delivery of the placenta:
   to bleed if the patient’s blood group is           • During this time (sometimes called the
   Rhesus negative (Rh negative) with a                   fourth stage of labour) it is important
   single fetus. This will reduce the risk                to record whether the uterus is well
   of fetal blood crossing the placenta to                contracted and whether there is any
   the mother’s circulation and, thereby,                 excessive bleeding. During the first
   sensitizing the patient. Nevertheless, anti-           hour after the completion of the third
   D immunoglobulin must always be given                  stage of labour, there is a high risk of
   to these patients.                                     postpartum haemorrhage.
3. Allowing the umbilical cord to bleed               • If the third stage of labour and the
   during the third stage of labour, reduces              observations were normal, the patient’s
   the placental volume and, thereby, speeds              pulse rate and blood pressure should be
   up the separation of the placenta. As a                measured again an hour later.
   general rule, the umbilical cord should            • If the third stage of labour was not
   be allowed to bleed once a multiple                    normal, the observations must be
   pregnancy has been excluded. Recent                    repeated every 15 minutes, until the
   research suggest that the umbilical cord is            patient’s condition is normal. Thereafter,
   best clamped and cut three minutes after               the observations should be repeated
   delivery to allow the infant to receive extra          every hour for further four hours.
   blood from the placenta.
                                                    During the first hour after the delivery it is
 Allowing the umbilical cord to bleed after         essential to ensure that the uterus is well
 delivering the infant speeds up the separation     contracted and that there is no excessive bleeding.
 of the placenta.
                                                   5-14 When should the infant be given to
5-13 What recordings must always be made           the mother to hold and put to the breast?
during and after the third stage of labour?
                                                   As soon as possible after delivery. Usually
1. Recordings made about the third stage of        the infant is well dried and then placed
   labour:                                         on the mother’s abdomen if the infant is
   • Duration of the third stage.                  crying or breathing well. Wait three minutes
   • The amount of blood lost.                     before clamping the umbilical cord and then
   • Medication given.                             give the infant to the mother to hold and
   • The condition of the perineum and the         place to the breast. The nipple stimulation
       presence of any tears.                      causes uterine contractions which may help
2. Recordings made immediately after the           placental separation.
   delivery of the placenta:
   • Whether the uterus is well contracted
       or not.
   • Any excessive vaginal bleeding.
94   INTRAPAR TUM CARE




EXAMINATION OF THE                               4. Size:
                                                    Finally the placenta must be weighed.
PLACENTA AFTER BIRTH                                The weight of the placenta increases with
                                                    gestational age and is usually 1/6 the
                                                    weight of the infant, i.e. 450–650 g at term.
5-15 How should you examine                         If the placenta is abnormally large and
the placenta after delivery?                        heavy, the following possibilities must be
Every placenta must be examined for:                considered:
                                                    • A heavy, oedematous placenta is
1. Completeness:                                        suggestive of congenital syphilis.
   Make sure that both the placenta and the         • A heavy, pale placenta is suggestive of
   membranes are complete after the delivery            Rhesus haemolytic disease.
   of the placenta:                                 • A placenta which is heavier than would
   • The membranes are examined for                     be expected for the weight of the
       completeness by holding the placenta             infant, but with a normal appearance, is
       up by the umbilical cord so that the             suggestive of maternal diabetes.
       membranes hang down. You will see            A placenta which weighs less than would
       the round hole through which the             be expected for the weight of the infant,
       infant was delivered. Examine the            is suggestive of fetal intra-uterine growth
       membranes carefully to determine             restriction (IUGR).
       whether they are complete.
   • The placenta is now held in both hands
                                                  All placentas must be carefully examined for
       and the maternal surface is inspected
       after the membranes are folded away.       completeness and abnormalities after delivery.
       A missing part of the placenta, or
       cotyledon, is thus easily noticed.
2. Abnormalities:                                THE ABNORMAL THIRD
   • Cloudy membranes, or a placenta
       that smells offensive, suggest the
                                                 STAGE OF LABOUR
       presence of chorioamnionitis. Peeling
       the amnion off the chorion is the best
                                                 5-16 What is a prolonged
       way of examining the amnion over
                                                 third stage of labour?
       the placenta for cloudiness caused by
       chorioamnionitis.                         If the placenta has still not been delivered
   • Clots of blood which stick to the           after 30 minutes, the third stage is said to be
       maternal surface suggest that abruptio    prolonged.
       placentae has occurred.
   • Infarcts can be recognised as firm, pale
                                                  The third stage is prolonged when the placenta
       areas on the maternal surface of the
       placenta. Calcification on the maternal
                                                  still has not been delivered after 30 minutes.
       surface is normal.
3. Umbilical cord:                               5-17 How should a prolonged third
   Two arteries and a vein should be seen on     stage of labour be managed?
   the cut end of the umbilical cord. If only
                                                 1. If the active method has been applied and
   one umbilical artery is present, the infant
                                                    failed:
   must be carefully examined for other
                                                    • An infusion with 20 units of oxytocin
   congenital abnormalities.
                                                        in 1000 ml Basol or normal saline must
                                                        be started and run in rapidly.
THE THIRD STAGE OF LABOUR       95


   •   Once the uterus is well contracted,          MANAGING A
       try again to deliver the placenta by
       controlled cord traction.                    POSTPARTUM
                                                    HAEMORRHAGE
5-18 What should be done if the
placenta is still not delivered, after
the routine management of a                         5-20 What is a postpartum haemorrhage?
prolonged third stage of labour?
                                                    1. Blood loss of more than 500 ml within the
A vaginal examination must be done:                    first 24 hours after delivery of the infant.
                                                    2. Any bleeding after delivery, which appears
1. If the placenta or part of the placenta is
                                                       excessive.
   palpable in the vagina or lower segment of
   the uterus, this confirms that the placenta
   has separated. By pulling on the umbilical        Any excessive bleeding after delivery should be
   cord with one hand, while pushing the             considered to be a postpartum haemorrhage and
   fundus of the uterus upwards with the             managed as such.
   other hand (i.e. controlled cord traction),
   the placenta can be delivered.
2. If the placenta or part of the placenta is not   5-21 What should be done if a patient
   palpable in the vagina or lower segment of       has a postpartum haemorrhage?
   the uterus and only the umbilical cord is        The management will depend on whether the
   felt, then the placenta is still in the upper    placenta has been delivered or not.
   segment of the uterus and a diagnosis of
   retained placenta must be made.                  5-22 What is the management of
                                                    a postpartum haemorrhage, if the
 A retained placenta is diagnosed if the            placenta has not been delivered?
 management of prolonged labour has failed.         1. If the active method has been used to
                                                       manage the third stage of labour, a rapid
5-19 What is the management                            intravenous infusion of 20 units oxytocin
of a retained placenta?                                in 1000 ml Basol or normal saline must
                                                       be started, to ensure that the uterus is
1. Continue with the intravenous infusion of           well contracted. A further attempt should
   oxytocin and make sure that the uterus is           now be made to deliver the placenta.
   well contracted. This will reduce the risk of       Immediately after the delivery of the
   postpartum haemorrhage.                             placenta, make sure that the uterus is well
2. While waiting for the theatre to be ready or        contracted, by rubbing up the fundus.
   transfer of the patient, check continuously      2. If the attempt to deliver the placenta fails,
   whether the uterus remains well contracted          the patient has a retained placenta and
   and for excessive vaginal bleeding.                 should be managed for a retained placenta.
   The blood pressure and pulse must be
   measured and recorded every 30 minutes.          The management of a patient with a
3. If the patient is at a clinic or a level 1       postpartum haemorrhage before the delivery of
   hospital without an operating theatre,           the placenta is summarised in flow diagram 5-I.
   she must be transferred to a level 2 or
   3 hospital, for manual removal of the
   placenta under general anaesthesia.
4. Keep the patient ‘nil per mouth’.
96   INTRAPAR TUM CARE




Flow diagram 5-1: The management of a patient with a postpartum haemorrhage before the delivery of the
placenta

5-23 What is the management of a patient             If the bleeding persists following rubbing up
with a postpartum haemorrhage, if the                the uterus, bleeding must be controlled by
placenta has already been delivered?                 bi-manual compression of the uterus. A fist is
                                                     inserted in the vagina or four fingers with the
This is a dangerous complication, which must
                                                     palm upwards in the posterior fornix of the
be rapidly and correctly managed, according
                                                     vagina, with the other hand pushing down on
to a clear plan:
                                                     the fundus of the uterus abdominally.
Step 1
                                                     Step 3
Call for help. One cannot manage a
                                                     A rapid intravenous infusion of 20 units
postpartum haemorrhage alone. Someone
                                                     oxytocin in 1000 ml Plasmalyte B or normal
needs to get the oxytocin, cannulas, infusion
                                                     saline must be started. Once again, make
sets and intravenous fluids while the other
                                                     sure that the uterus is well contracted, by
person is controlling the bleeding.
                                                     massaging it.
Step 2
                                                     Step 4
The uterus must immediately be rubbed up,
                                                     The patient’s bladder must be emptied. A
i.e. massaged. This will cause the uterus to
                                                     full bladder can cause the uterus to contract
contract and stop bleeding in most cases.
                                                     poorly, with resultant haemorrhage.
THE THIRD STAGE OF LABOUR       97


These four steps must always be carried out,
                                                     Bleeding from an atonic uterus occurs in episodes
irrespective of the cause of the postpartum
haemorrhage. The cause of the haemorrhage
                                                     and consists of dark red blood clots.
must now be diagnosed.
                                                    5-26 What are the possible
  NOTE  Bleeding can also be controlled by          causes of an atonic uterus?
  aortic compression. The aorta can be
  compressed abdominally by pressing down           1. A uterus full of blood clots is the
  at the level of the umbilicus. Compression           commonest cause.
  of the aorta is particularly useful during a      2. A full bladder.
  laparotomy for postpartum haemorrhage.            3. Retained placental cotyledons.
                                                    4. Factors during the pregnancy, which
                                                       resulted in an abnormally large uterus:
 A postpartum haemorrhage is a dangerous
                                                       • A large infant.
 complication and must be managed according to
                                                       • A multiple pregnancy.
 a definite plan.                                      • Polyhydramnios.
                                                    5. A prolonged first stage of labour.
5-24 What are the main causes of                    6. The intravenous infusion of oxytocin
postpartum haemorrhage?                                during the first stage of labour.
                                                    7. General anaesthesia.
The two main causes of postpartum
                                                    8. Grande multiparity.
haemorrhage are:
                                                    9. Abruptio placentae.
1. Haemorrhage due to an atonic (poorly
   contracted) uterus.
                                                     The commonest causes of an atonic uterus are a
2. Haemorrhage due to trauma, usually in the
   form of tears (lacerations).                      uterus full of blood clots and a full bladder.
It is very important that they are differentiated
from one another as this will determine the         5-27 What is the correct management
correct management.                                 of postpartum haemorrhage, if
                                                    the clinical signs indicate bleeding
                                                    from an atonic uterus?
 The two main causes of postpartum
                                                    1. Rub up the uterus, empty the patient’s
 haemorrhage are an atonic uterus and trauma.          bladder and start a fast intravenous
                                                       infusion of 20 units oxytocin in 1000 ml
The management of a patient with a postpartum          Basol or normal saline.
haemorrhage after the delivery of the placenta      2. If the uterus still tends to relax, examine
is summarised in flow diagram 5-II.                    the placenta again, to check whether it is
                                                       complete.
5-25 What clinical signs indicate that the          3. If the placenta is not complete, manage the
bleeding is caused by an atonic uterus?                patient as detailed in section 5-28.
                                                    4. If the placenta is complete and the uterus
1. The uterus is atonic (feels soft and spongy),
                                                       remains poorly contracted, the patient
   or tends to become atonic after it is rubbed
                                                       must be referred to a hospital with theatre
   up or after an oxytocin infusion is given.
                                                       facilities. This is an extremely serious
2. The bleeding is intermittent and consists
                                                       complication, which could result in the
   mainly of dark red clots.
                                                       patient’s death. While waiting for the
3. If the uterus is rubbed up and becomes
                                                       theatre or arranging transfer, the following
   well contracted, a large amount of dark red
                                                       management must be followed:
   blood clots escapes from the vagina.
98       INTRAPAR TUM CARE




Flow diagram 5-2: The management of a patient with a postpartum haemorrhage after the delivery of the
placenta


     •    Start a second, rapidly running,                 bleeding, until the patient is in theatre
          intravenous infusion and take a sample           or until she reaches a level 2 hospital.
          of blood for urgent cross-matching. A         • Lie the patient flat, or in the head-
          blood transfusion must be started as             down position and give oxygen by
          soon as possible.                                means of a face mask.
     •    The uterus must be bi-manually             5. Place three misoprostol (Cytotec) tablets
          compressed as explained in Step 2 of          (one tablet = 200 μg) in the patient’s rectum.
          section 5-23. This should control the
THE THIRD STAGE OF LABOUR      99


5-28 What is the further management of                is clamped. The balloon catheter is used in
postpartum haemorrhage due to an atonic               conjunction with oxytocics or misoprostol.
uterus if the initial management fails?
                                                      It is important to note that the clinician must
All patients that did not respond to the initial      progress to the next step without delay until it
emergency management should be transferred            is certain that the bleeding has stopped.
as acute emergencies to an appropriate level of
                                                      If the bleeding persists a laparotomy (midline
care, which will be at least level 1 hospitals with
                                                      incision) is required:
theatre facilities and emergency blood available.
                                                      1. If the patient has completed her family or
Prostaglandin F2-alpha is a potent uterotonics
                                                         is of high parity, proceed directly with a
agent. The drug may be injected into the
                                                         total abdominal hysterectomy.
myometrium. 5 mg is added to 20 ml saline
                                                      2. If the patient is primiparous or of low parity,
and 2 ml injected into various sites in the
                                                         the following steps could be followed:
myometrium being careful not to inject
                                                         • The patient is draped in the lithotomy
intravascularly. Alternatively 5 mg may be
                                                              position with the legs angled slightly
added to a litre of the crystalloid infusion.
                                                              downwards at about 30 degrees.
If the uterus continues to relax, the patient                 This allows the surgeon more room
needs to be taken to theatre in a level 2 hospital.           during the operation. This will allow
Four units of blood and a person with the skills              immediate inspection to assess the
to do an emergency hysterectomy need to be                    result of intra-abdominal measures to
available if required. While waiting for theatre              reduce blood loss.
bi-manual compression of the uterus should be            • Compression sutures are inserted
applied to reduce further blood loss.                         (B-Lynch sutures). The bladder
                                                              peritoneum is opened. A Vicryl 1 suture
In theatre an examination under general
                                                              is passed through the lower segment
anaesthetic (EUA) is done:
                                                              2–3 cm from the lateral border of the
1. Inspect the vagina and cervix for tears.                   uterus. These sutures are tied as tight as
2. A bi-manual examination and exploration                    possible on top for the uterus 3–4 cm
   of the uterine cavity with two fingers for                 medial to the uterine cornu.
   retained placental tissue and a possible           3. If the bleeding persists systematic
   laceration.                                           devascularisation of the uterus is required.
3. The uterus is further emptied with a large            Number one absorbable suturing material is
   ovum forceps and then firmly curetted                 used on a large round bodied (taper) needle.
   with a Baum’s curette.                                • First, ligate the uterine artery. A suture
                                                              is inserted through full thickness
Trans-abdominal ultrasound in theatre is of
                                                              myometrium just above the deflection
value to confirm that the uterus is empty.
                                                              of the broad ligament on the pelvic
Inserting a balloon cather could be valuable to               floor. This will be at the level of the
reduce the bleeding while waiting for theatre                 internal os of the cervix. The anterior
or if the patient is primiparous or of low                    entry and posterior exit point of the
parity, where a hysterectomy after evacuation                 needle will be 2 cm medial to the
would be a last option. The balloon cather                    lateral insertion of the broad ligament.
is made by using a large Foley’s catheter and                 Pass the needle back from posterior to
surgical latex glove. The glove is tied around                anterior through an avacular portion of
the Foley’s catheter above the bulb. Any suture               the broad ligament and tie a tight knot.
material can be used. Saline is infused under                 If bleeding persists a similar suture is
pressure into the glove either by injecting with              inserted on the other side of the uterus.
a syringe or by squeezing a vacolitre. Once              • If bleeding persists the anastomosis of
500 ml of saline has been infused the catheter                the ovarian and uterine artery is ligated
100    INTRAPAR TUM CARE



        with a similar suture inserted above        5-30 What can be done to reduce the
        the level of the insertion of the ovarian   risk of postpartum haemorrhage?
        ligament to the uterus and below the
                                                    In patients who are at high risk of postpartum
        uterine tube. Both anastomoses need to
                                                    haemorrhage (e.g. multiple pregnancy,
        be ligated with persistent bleeding.
                                                    polyhydramnios or grande multiparity) the
   •    If bleeding persists proceed with
                                                    following should be done:
        a hysterectomy as a life saving
        procedure. A less experienced               1. An intravenous infusion should be started
        surgeon should perform a subtotal              during the active phase of the first stage
        hysterectomy, by amputating the uterus         of labour.
        above the cervix following the ligation     2. Twenty units of oxytocin in 1000 ml
        of the uterine arteries.                       Basol or normal saline should be given by
                                                       rapid infusion after the placenta has been
As a general principle the decision to do a
                                                       delivered.
hysterectomy must not be postponed too
                                                    3. Make sure that the uterus is well
long. Continued blood loss requiring the
                                                       contracted during the first hour after the
transfusion of five or more units of blood
                                                       delivery of the placenta and make sure that
compromise blood clotting and increase the
                                                       the patient empties her bladder frequently.
risk of a maternal death.

                                                    5-31 What clinical signs indicate
5-29 What should be done if the
                                                    that the bleeding is from a tear?
membranes or placenta are not
complete after delivery and the                     1. The uterus is well contracted.
patient is not bleeding?                            2. A continuous trickle of bright red blood
                                                       comes from the uterus in spite of a well
1. Incomplete membranes usually do not
                                                       contracted uterus.
   cause any complications.
2. An incomplete placenta with one or more
   cotyledons missing can cause a postpartum         Bleeding from a tear causes a continuous trickle
   haemorrhage due to an atonic uterus.              of bright red blood in spite of a well contracted
   Therefore, manage as follows:                     uterus.
   • An intravenous infusion of 20 units
      oxytocin in 1000 ml Basol or normal
      saline must be started to make sure that      5-32 What is the correct management
      the uterus is well contracted.                if the clinical signs indicate that
   • Arrange for an evacuation of the uterus        the bleeding is from a tear?
      or transfer the patient to a hospital with    The patient should be placed in the lithotomy
      theatre facilities to evacuate the uterus.    position and examined as follows:
   • Keep the patient ‘nil per mouth’ as a
      general anaesthetic will be necessary.        1. First the perineum must be examined
                                                       for bleeding from a a tear or episiotomy.
                                                       Repair any tear or episiotomy.
 An evacuation of the uterus under general          2. Thereafter, the vagina must be examined
 anaesthesia is required if placental cotyledons       for a tear using the index finger of each
 are retained in the uterus.                           hand to hold the vagina open. If available,
                                                       a retractor (a Werdheim’s retractor) is
                                                       helpful in examining the vagina. If a tear is
                                                       found it must be sutured.
THE THIRD STAGE OF LABOUR     101


3. If a perineal or vaginal tear cannot be             require a laparotomy and in most cases a
   found, a cervical tear or even a ruptured           hysterectomy.
   uterus may be present.
                                                    5-34 What is the correct management
5-33 What will the further management               for bleeding from an episiotomy?
be once a perineal and vaginal tear has
                                                    1. If the episiotomy has not yet been stitched,
been excluded and the bleeding persists?
                                                       it should be repaired. Make sure that all
The patient is put into the Lithotomy position.        bleeding stops.
A good light and a cervical suturing pack must      2. If the episiotomy has already been repaired,
be available. The cervical suturing pack contains      the stitches must be removed and the
three swab holders, a Sims speculum (or                bleeding vessels must be identified and tied
Auvard’s speculum) and a Werdheim retractor.           off. Then the episiotomy must be resutured.
The postpartum cervix is very floppy and it can
be difficult to orientate oneself. Also there is    5-35 Which patients are at high
often a lot of blood making vision difficult.       risk of a cervical tear?
1. The vagina is held open with a posterior         1. Patients who bear down and deliver an
   inserted Sims speculum (or Auvard’s                 infant before the cervix is fully dilated.
   speculum) and an anterior inserted               2. Patients with a rapid labour when the cervix
   Werdheim retractor. A swab holder is                dilates very quickly (a precipitous delivery).
   placed on the cervix at 12 o’clock to serve      3. Patients who have an instrument delivery.
   as a marker. A second swab holder is
   placed next to it. The part of the cervix        5-36 How can you recognise
   between the swab holders is inspected for        an inverted uterus?
   a tear. A third swab holder is placed next
   to the second swab holder and the part           1. The diagnosis must be considered if a
   of the cervix between the swab holders              patient suddenly becomes shocked during
   is inspected for a tear. The second swab            the third stage of labour without excessive
   holder is then placed next to the third             vaginal bleeding.
   swab holder and the cervix between them          2. No uterus is palpable on abdominal
   examined. The process of alternating                examination.
   the second and third swab holders and            3. The uterus lies in the vagina or may even
   examining the cervix in between is repeated         hang out of the vagina.
   around the cervix until one reaches the first
   ‘marker’ swab holder. The entire cervix will     5-37 What is the management of a
   then have been thoroughly examined.              patient with an inverted uterus?
2. If a cervical tear is found, two swab holders
                                                    1. Two fast running intravenous infusions
   are placed on both sides of the tear and if
                                                       must be started to treat the shock.
   downward traction allows the full length
                                                    2. The patient must be transferred to a level 2
   of the tear to be seen, the tear is sutured.
                                                       or 3 hospital as an emergency.
   If the apex of the tear cannot be seen the
   patient needs to be taken to theatre and         Bleeding disorders can also result in
   consent signed and preparations made for         postpartum haemorrhage. Placental abruption
   a possible hysterectomy.                         is the commonest cause of a bleeding disorder
3. In theatre a bi-manual examination and           in the third stage of labour. In this situation
   exploration of the uterine cavity with two       it is extremely important to ensure that the
   fingers for retained placental tissue is done.   uterus is well contracted after the delivery of
   If the apex of the cervical laceration is        the placenta. The powerful contraction of the
   seen, the tear is sutured. Larger tears will
102   INTRAPAR TUM CARE



uterus plays a greater role than blood clotting
                                                   Procedures aimed at preventing the infection of
in the prevention of bleeding.
                                                   staff with HIV must be strictly enforced.

PROTECTING THE STAFF
                                                  CASE STUDY 1
FROM HIV INFECTION
DURING LABOUR                                     Following normal first and second stages of
                                                  labour, the third stage of labour is actively
                                                  managed. The patient was not hypertensive
5-38 What should be done during                   during her pregnancy and does not have a
labour to prevent the staff from                  history of heart valve disease. Syntometrine is
becoming infected with the human                  given by intramuscular injection and the patient
immunodeficiency virus (HIV)?                     is observed for signs of placental separation.
All patients should be regarded as being
potentially infected with HIV, the virus which    1. Were the necessary precautions taken
causes AIDS (acquired immunodeficiency            before giving the Syntometrine ?
syndrome). The virus is present in blood,         No. A second twin must be excluded before
liquor and placental tissue. Contamination        giving the Syntometrine.
of the eyes or cuts on the hands or arms, and
pricks by contaminated needles carry a small
                                                  2. Is the third stage of labour being
risk of causing infection.
                                                  correctly managed by the active method?
Therefore, the following precautions should be
                                                  No. The placenta must be delivered when
taken for all deliveries:
                                                  the uterus contracts. If the active method of
1. The person conducting the delivery must        managing the third stage is used, it is incorrect
   wear gloves and a plastic apron. A face        to wait for signs of placental separation.
   mask and goggles are recommended.
   People wearing glasses need only a mask to     3. How soon after giving the Syntometrine
   protect their face.                            does the uterus contract?
2. Any person who resuscitates the infant or
   cleans the labour ward after the delivery      Syntometrine includes oxytocin which causes
   must wear gloves.                              uterine contractions two to three minutes after
3. The umbilical cord must be squeezed            intramuscular administration.
   to empty it of blood before applying the
   second clamp. This will prevent blood          4. What should have been done as
   spurting out when the cord is cut.             soon as the uterus contracted?
4. Injection needles must be placed in a          The umbilical cord should have been steadily
   sharps container immediately after being       pulled with one hand while the other hand was
   used. Needles must not be replaced into        pushing upwards on the uterus, i.e. controlled
   their sheaths.                                 cord traction. Placental separation and then
5. When an episiotomy is repaired, the needle     placental delivery occur with the uterine
   must only be held with needle holder and       contraction.
   the tissues with forceps.
6. The needle should be cut loose from the
   suture material and replaced in the dish
   as soon as possible. When the needle is
   to be used again, it must be held in a safe
   manner with forceps.
THE THIRD STAGE OF LABOUR    103


5. What should be done if placental               3. What should be done in a peripheral
separation does not take place with               clinic if the placenta is retained?
the first uterine contraction?
                                                  The patient should be transferred to a hospital
A second uterine contraction will occur five      with theatre facilities for a manual removal of
to six minutes after giving Syntometrine by       the placenta under general anaesthesia.
intramuscular injection due to the action of
the ergometrine. A second attempt must now        4. What complication is this patient
be made to deliver the placenta by controlled     at high risk of developing?
cord traction. Most placentas which are not
delivered with the first contraction will be      A postpartum haemorrhage due to an atonic
delivered with the second contraction.            uterus.

                                                  5. What should have been done
CASE STUDY 2                                      in this case to make the patient’s
                                                  transfer to hospital safer?
A patient with normal first and second stages     An intravenous infusion of 20 units oxytocin
of labour has been delivered by a midwife         in 1000 ml Basol or normal saline should
working alone at a peripheral clinic. A second    have been started. She should also have been
twin is excluded on abdominal examination         carefully observed to make sure that the uterus
and the passive method is used to manage the      was well contracted. Make sure that the uterus
third stage of labour. After 30 minutes there     remains well contracted, and measure the
has been no sign of placental separation. A       blood pressure and pulse rate every 15 minutes
diagnosis of retained placenta is made and the    until the patient is transferred.
doctor in the nearest district hospital phoned.
The doctor agrees to accept the patient and
arranges ambulance transfer to the hospital.      CASE STUDY 3
1. Is the diagnosis of a retained                 After normal first and second stages of labour
placenta correct?                                 in a grande multipara, the placenta is delivered
No. The diagnosis of retained placenta can        by the active management of the third stage
only be made if the placenta is not delivered     of labour. There are no complications. Half
after the active method of managing the third     an hour later you are called to see the patient
stage of labour has been used. The correct        as she is bleeding vaginally. You immediately
diagnosis is a prolonged third stage of labour.   measure her blood pressure which indicates
                                                  that she is shocked.
2. What should have been done in this
case of a prolonged third stage of labour?        1. Was the patient’s third stage of
                                                  labour correctly managed?
The placenta should have been delivered by
the active method of managing the third           No. As the patient falls into a high risk group
stage of labour, i.e. by giving oxytocin 10       for postpartum haemorrhage, an intravenous
units intramuscular and using controlled          infusion should have been started during the
cord traction.                                    first stage of labour. Twenty units of oxytocin
                                                  should have been added to the infusion after
                                                  the placenta was delivered. The patient should
                                                  also have been carefully observed to make sure
                                                  that the uterus remained well contracted.
104   INTRAPAR TUM CARE



2. Do you agree that the first step in the        examination the cervix was found to be 7 cm
management of postpartum haemorrhage              dilated and paper thin. When observations
is to measure the blood pressure?                 were made an hour after delivery of the
                                                  placenta, the patient was found lying in a pool
No. The first step should be to rub up the
                                                  of blood. Her uterus was well contracted and
uterus in order to stop the bleeding.
                                                  her bladder was empty.

3. What should be the further
                                                  1. What should be the next step in
management of this patient?
                                                  the management of this patient?
A rapid intravenous infusion of 20 units
                                                  A rapid intravenous infusion of 20 units
oxytocin in 1000 ml Basol or normal saline
                                                  oxytocin in 1000 ml Plasmalyte B or normal
should be started. Make sure that the uterus is
                                                  saline should be started and you should make
well contracted. Then check that the patient’s
                                                  sure that the uterus is well contracted.
bladder is empty as a full bladder can cause
relaxation of the uterus.
                                                  2. In spite of this management a
                                                  continuous trickle of bright red
4. What additional management
                                                  blood is observed. What is the most
is needed for this patient?
                                                  likely cause of the bleeding?
The cause of the bleeding must now be found.
                                                  A tear.
The two important causes of postpartum
haemorrhage are an atonic uterus or a tear.
                                                  3. Why is this patient at high
                                                  risk of a cervical tear?
5. What is the most probable cause of this
patient’s postpartum haemorrhage?                 Because the infant was delivered through an
                                                  incompletely dilated cervix.
As she is a grande multipara the most likely
cause is an atonic uterus.
                                                  4. What should be the next step in
                                                  the management of this patient?
6. What are the clinical signs of
bleeding due to an atonic uterus?                 The patient must be placed in the lithotomy
                                                  position and be examined for a vaginal or
The uterus will not be well contracted and
                                                  perineal tear. Any tear must be sutured.
will tend to relax after it is rubbed up. In
addition, the bleeding is not continuous but
occurs in episodes, and the blood consists of     5. The midwife who is managing this
dark red clots.                                   patient does not find either a vaginal or
                                                  perineal tear. What should be the next
                                                  step in the management of this patient?
CASE STUDY 4                                      A doctor should examine the patient for a
                                                  cervical tear. The most likely site of a tear is the
A primigravid patient who did not co-operate      cervix as this patient probably delivered before
well during the first stage of labour delivers    full cervical dilatation.
soon after a vaginal examination. At the

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Intrapartum Care: The third stage of labour

  • 1. 5 The third stage of labour Before you begin this unit, please take the THE NORMAL THIRD corresponding test at the end of the book to assess your knowledge of the subject matter. You STAGE OF LABOUR should redo the test after you’ve worked through the unit, to evaluate what you have learned 5-1 What is the third stage of labour? The third stage of labour starts immediately Objectives after the delivery of the infant and ends with the delivery of the placenta and membranes. When you have completed this unit you 5-2 How long does the normal should be able to: third stage of labour last? • Define the third stage of labour. • Manage the third stage of labour. The normal duration of the third stage of labour lasts less than 30 minutes, and mostly • List the observations needed during the only two to five minutes. third stage of labour. • Examine a placenta after delivery. 5-3 What happens during the • Manage a patient with prolonged third third stage of labour? stage of labour. 1. Uterine contractions continue, although • Manage a patient with retained less frequently than in the second stage. placenta. 2. The uterus contracts and becomes smaller • List the causes of postpartum and, as a result, the placenta separates. haemorrhage. 3. The placenta is squeezed out of the upper • Manage a patient with postpartum uterine segment into the lower uterine segment and vagina. The placenta is then haemorrhage. delivered. • Prevent infection of the staff with HIV at 4. The contraction of the uterine muscle delivery. compresses the uterine blood vessels and this prevents bleeding. Thereafter, clotting (coagulation) takes place in the uterine blood vessels due to the normal clotting mechanism.
  • 2. THE THIRD STAGE OF LABOUR 91 5-4 Why is the third stage 1. Blood loss is less than when the active of labour important? method is used. Therefore the active method reduces the incidence of Excessive bleeding is a common complication postpartum haemorrhage. during the third stage of labour. Therefore, 2. There is less possibility that oxytocin will the third stage, if not correctly managed, be needed to contract the uterus following can be an extremely dangerous time for the the third stage of labour. patient. Postpartum haemorrhage is the commonest cause of maternal death in some Disadvantages: developing countries. 1. The person actively managing the third stage of labour must not leave the patient. The third stage of labour can be a very dangerous Therefore, an assistant is needed to give the time and, therefore, must be correctly managed. oxytocic drug and examine the newborn infant, while the person conducting the delivery continues with the management of the third stage of labour. MANAGING THE THIRD 2. The risk of a retained placenta is increased STAGE OF LABOUR if the active method is not carried out correctly, especially if the first two contractions after the delivery of the infant 5-5 How should the third stage are not used to deliver the placenta. of labour be managed? 3. Excessive traction on the umbilical cord can result in inversion of the uterus, There are two ways of managing the third especially if the fundus of the uterus is not stage of labour: supported by placing a hand above the 1. The active method. bladder on the abdomen. 2. The passive method. Whenever possible, the active method should Blood loss during the third stage of labour is less be used. However, midwives conducting when the active management is used. deliveries alone, without an assistant, in a midwife obstetric unit or level 1 hospital may use the passive method. Midwives who 5-6 What is the active management choose to use the passive method of managing of the third stage of labour? the third stage of labour MUST also be able 1. Immediately after the delivery of the to confidently use the active method, as this infant, an abdominal examination is done method may have to be used in some patients. to exclude a second twin. 2. An oxytocic drug is given if no second twin is present. Everybody conducting a delivery must be able 3. When the uterus contracts controlled cord to use the active method of managing the third traction must be applied: stage of labour. • Keep steady tension on the umbilical cord with one hand. 5-6 What are the advantages and • Place the other hand just above the disadvantages of the active method of symphysis pubis and push the uterus managing the third stage of labour? upwards. Controlled cord traction is also called the Advantages: Brandt–Andrews method (manoeuvre).
  • 3. 92 INTRAPAR TUM CARE 4. Placental separation will take place when Oxytocin is the drug of choice in the the uterus contracts. When controlled cord traction is applied the placenta will be management of the third stage of labour. moved down from the upper segment to the lower segment of the uterus. 5-9 What are the actions of the two 5. Once this occurs, continuous light components of syntometrine? traction on the umbilical cord will now 1. Oxytocin causes physiological uterine deliver the placenta from the lower contractions which start two to three uterine segment or vagina. minutes after an intramuscular injection 6. If placental separation does not take place and continue for approximately one to during the first uterine contraction after three hours. giving the oxytocic drug, wait until the 2. Ergometrine causes a tonic contraction of next contraction occurs and then repeat the uterus which starts five to six minutes the manoeuvre. after an intramuscular injection and With the passive method of managing the continues for about three hours. third stage of labour, the patient is asked to bear down only after there are signs of 5-10 What are the contraindications placental separation. An oxytocic drug is only to the use of syntometrine? given after the placenta has been delivered. Syntometrine contains ergometrine and, therefore, should not be used if: 5-8 Which oxytocic drug is usually given during the third stage of labour? 1. The patient is hypertensive. Ergometrine causes vasospasm which may result in a One of the following two drugs is generally severe increase in the blood pressure. given: 2. The patient has heart valve disease. 1. Oxytocin (Syntocinon ) 10 units. This is Tonic contraction of the uterus pushes a given intramuscularly. It is not necessary large volume of blood into the patient’s to protect this drug against direct light. circulation, which may cause heart failure Although the drug must also be kept in a with pulmonary oedema. refrigerator, it has a shelf life of one month at room temperature. 2. Syntometrine. This is given by Make sure that there are no contraindications intramuscular injection. Syntometrine is before using syntometrine. supplied in a 1 ml ampoule which contains a mixture of five units oxytocin and 0.5 5-11 What oxytocic drug should be mg ergometrine maleate. The drug must used if there is a contraindication be protected from direct light at all times to the use of syntometrine? and must be kept in a refrigerator. The ampoules must, therefore, be kept in an Oxytocin (Syntocinon) should be used. An opaque container in the refrigerator. intravenous infusion of 10 units oxytocin in 200 ml normal saline is given at a rate of 30 Oxytocin (Syntocinon) is the drug of choice. drops per minute or 10 units oxytocin are However, as Syntometrine is still widely given by intramuscular injection. prescribed, the correct use of this drug will also be explained. 5-12 Should the umbilical cord be allowed The latest information in the Cochrane Review to bleed before the placenta is delivered? indicates that the best drug and dosage to use 1. The umbilical cord must not be allowed to is oxytocin 10 units. bleed after the delivery of the first infant
  • 4. THE THIRD STAGE OF LABOUR 93 in a multiple pregnancy. In identical twins • A short note on the suturing of an with a single placenta (monochorionic episiotomy or perineal tear. placenta), the undelivered second twin • The patient’s pulse rate, blood pressure may bleed to death if the umbilical cord and temperature. of the first born infant is allowed to bleed. • The completeness of the placenta Therefore, the forceps should be left in and membranes, and any placental place on the umbilical cord after the abnormality. delivery of the first twin. 3. Recordings made during the first hour 2. The umbilical cord should be allowed after the delivery of the placenta: to bleed if the patient’s blood group is • During this time (sometimes called the Rhesus negative (Rh negative) with a fourth stage of labour) it is important single fetus. This will reduce the risk to record whether the uterus is well of fetal blood crossing the placenta to contracted and whether there is any the mother’s circulation and, thereby, excessive bleeding. During the first sensitizing the patient. Nevertheless, anti- hour after the completion of the third D immunoglobulin must always be given stage of labour, there is a high risk of to these patients. postpartum haemorrhage. 3. Allowing the umbilical cord to bleed • If the third stage of labour and the during the third stage of labour, reduces observations were normal, the patient’s the placental volume and, thereby, speeds pulse rate and blood pressure should be up the separation of the placenta. As a measured again an hour later. general rule, the umbilical cord should • If the third stage of labour was not be allowed to bleed once a multiple normal, the observations must be pregnancy has been excluded. Recent repeated every 15 minutes, until the research suggest that the umbilical cord is patient’s condition is normal. Thereafter, best clamped and cut three minutes after the observations should be repeated delivery to allow the infant to receive extra every hour for further four hours. blood from the placenta. During the first hour after the delivery it is Allowing the umbilical cord to bleed after essential to ensure that the uterus is well delivering the infant speeds up the separation contracted and that there is no excessive bleeding. of the placenta. 5-14 When should the infant be given to 5-13 What recordings must always be made the mother to hold and put to the breast? during and after the third stage of labour? As soon as possible after delivery. Usually 1. Recordings made about the third stage of the infant is well dried and then placed labour: on the mother’s abdomen if the infant is • Duration of the third stage. crying or breathing well. Wait three minutes • The amount of blood lost. before clamping the umbilical cord and then • Medication given. give the infant to the mother to hold and • The condition of the perineum and the place to the breast. The nipple stimulation presence of any tears. causes uterine contractions which may help 2. Recordings made immediately after the placental separation. delivery of the placenta: • Whether the uterus is well contracted or not. • Any excessive vaginal bleeding.
  • 5. 94 INTRAPAR TUM CARE EXAMINATION OF THE 4. Size: Finally the placenta must be weighed. PLACENTA AFTER BIRTH The weight of the placenta increases with gestational age and is usually 1/6 the weight of the infant, i.e. 450–650 g at term. 5-15 How should you examine If the placenta is abnormally large and the placenta after delivery? heavy, the following possibilities must be Every placenta must be examined for: considered: • A heavy, oedematous placenta is 1. Completeness: suggestive of congenital syphilis. Make sure that both the placenta and the • A heavy, pale placenta is suggestive of membranes are complete after the delivery Rhesus haemolytic disease. of the placenta: • A placenta which is heavier than would • The membranes are examined for be expected for the weight of the completeness by holding the placenta infant, but with a normal appearance, is up by the umbilical cord so that the suggestive of maternal diabetes. membranes hang down. You will see A placenta which weighs less than would the round hole through which the be expected for the weight of the infant, infant was delivered. Examine the is suggestive of fetal intra-uterine growth membranes carefully to determine restriction (IUGR). whether they are complete. • The placenta is now held in both hands All placentas must be carefully examined for and the maternal surface is inspected after the membranes are folded away. completeness and abnormalities after delivery. A missing part of the placenta, or cotyledon, is thus easily noticed. 2. Abnormalities: THE ABNORMAL THIRD • Cloudy membranes, or a placenta that smells offensive, suggest the STAGE OF LABOUR presence of chorioamnionitis. Peeling the amnion off the chorion is the best 5-16 What is a prolonged way of examining the amnion over third stage of labour? the placenta for cloudiness caused by chorioamnionitis. If the placenta has still not been delivered • Clots of blood which stick to the after 30 minutes, the third stage is said to be maternal surface suggest that abruptio prolonged. placentae has occurred. • Infarcts can be recognised as firm, pale The third stage is prolonged when the placenta areas on the maternal surface of the placenta. Calcification on the maternal still has not been delivered after 30 minutes. surface is normal. 3. Umbilical cord: 5-17 How should a prolonged third Two arteries and a vein should be seen on stage of labour be managed? the cut end of the umbilical cord. If only 1. If the active method has been applied and one umbilical artery is present, the infant failed: must be carefully examined for other • An infusion with 20 units of oxytocin congenital abnormalities. in 1000 ml Basol or normal saline must be started and run in rapidly.
  • 6. THE THIRD STAGE OF LABOUR 95 • Once the uterus is well contracted, MANAGING A try again to deliver the placenta by controlled cord traction. POSTPARTUM HAEMORRHAGE 5-18 What should be done if the placenta is still not delivered, after the routine management of a 5-20 What is a postpartum haemorrhage? prolonged third stage of labour? 1. Blood loss of more than 500 ml within the A vaginal examination must be done: first 24 hours after delivery of the infant. 2. Any bleeding after delivery, which appears 1. If the placenta or part of the placenta is excessive. palpable in the vagina or lower segment of the uterus, this confirms that the placenta has separated. By pulling on the umbilical Any excessive bleeding after delivery should be cord with one hand, while pushing the considered to be a postpartum haemorrhage and fundus of the uterus upwards with the managed as such. other hand (i.e. controlled cord traction), the placenta can be delivered. 2. If the placenta or part of the placenta is not 5-21 What should be done if a patient palpable in the vagina or lower segment of has a postpartum haemorrhage? the uterus and only the umbilical cord is The management will depend on whether the felt, then the placenta is still in the upper placenta has been delivered or not. segment of the uterus and a diagnosis of retained placenta must be made. 5-22 What is the management of a postpartum haemorrhage, if the A retained placenta is diagnosed if the placenta has not been delivered? management of prolonged labour has failed. 1. If the active method has been used to manage the third stage of labour, a rapid 5-19 What is the management intravenous infusion of 20 units oxytocin of a retained placenta? in 1000 ml Basol or normal saline must be started, to ensure that the uterus is 1. Continue with the intravenous infusion of well contracted. A further attempt should oxytocin and make sure that the uterus is now be made to deliver the placenta. well contracted. This will reduce the risk of Immediately after the delivery of the postpartum haemorrhage. placenta, make sure that the uterus is well 2. While waiting for the theatre to be ready or contracted, by rubbing up the fundus. transfer of the patient, check continuously 2. If the attempt to deliver the placenta fails, whether the uterus remains well contracted the patient has a retained placenta and and for excessive vaginal bleeding. should be managed for a retained placenta. The blood pressure and pulse must be measured and recorded every 30 minutes. The management of a patient with a 3. If the patient is at a clinic or a level 1 postpartum haemorrhage before the delivery of hospital without an operating theatre, the placenta is summarised in flow diagram 5-I. she must be transferred to a level 2 or 3 hospital, for manual removal of the placenta under general anaesthesia. 4. Keep the patient ‘nil per mouth’.
  • 7. 96 INTRAPAR TUM CARE Flow diagram 5-1: The management of a patient with a postpartum haemorrhage before the delivery of the placenta 5-23 What is the management of a patient If the bleeding persists following rubbing up with a postpartum haemorrhage, if the the uterus, bleeding must be controlled by placenta has already been delivered? bi-manual compression of the uterus. A fist is inserted in the vagina or four fingers with the This is a dangerous complication, which must palm upwards in the posterior fornix of the be rapidly and correctly managed, according vagina, with the other hand pushing down on to a clear plan: the fundus of the uterus abdominally. Step 1 Step 3 Call for help. One cannot manage a A rapid intravenous infusion of 20 units postpartum haemorrhage alone. Someone oxytocin in 1000 ml Plasmalyte B or normal needs to get the oxytocin, cannulas, infusion saline must be started. Once again, make sets and intravenous fluids while the other sure that the uterus is well contracted, by person is controlling the bleeding. massaging it. Step 2 Step 4 The uterus must immediately be rubbed up, The patient’s bladder must be emptied. A i.e. massaged. This will cause the uterus to full bladder can cause the uterus to contract contract and stop bleeding in most cases. poorly, with resultant haemorrhage.
  • 8. THE THIRD STAGE OF LABOUR 97 These four steps must always be carried out, Bleeding from an atonic uterus occurs in episodes irrespective of the cause of the postpartum haemorrhage. The cause of the haemorrhage and consists of dark red blood clots. must now be diagnosed. 5-26 What are the possible NOTE Bleeding can also be controlled by causes of an atonic uterus? aortic compression. The aorta can be compressed abdominally by pressing down 1. A uterus full of blood clots is the at the level of the umbilicus. Compression commonest cause. of the aorta is particularly useful during a 2. A full bladder. laparotomy for postpartum haemorrhage. 3. Retained placental cotyledons. 4. Factors during the pregnancy, which resulted in an abnormally large uterus: A postpartum haemorrhage is a dangerous • A large infant. complication and must be managed according to • A multiple pregnancy. a definite plan. • Polyhydramnios. 5. A prolonged first stage of labour. 5-24 What are the main causes of 6. The intravenous infusion of oxytocin postpartum haemorrhage? during the first stage of labour. 7. General anaesthesia. The two main causes of postpartum 8. Grande multiparity. haemorrhage are: 9. Abruptio placentae. 1. Haemorrhage due to an atonic (poorly contracted) uterus. The commonest causes of an atonic uterus are a 2. Haemorrhage due to trauma, usually in the form of tears (lacerations). uterus full of blood clots and a full bladder. It is very important that they are differentiated from one another as this will determine the 5-27 What is the correct management correct management. of postpartum haemorrhage, if the clinical signs indicate bleeding from an atonic uterus? The two main causes of postpartum 1. Rub up the uterus, empty the patient’s haemorrhage are an atonic uterus and trauma. bladder and start a fast intravenous infusion of 20 units oxytocin in 1000 ml The management of a patient with a postpartum Basol or normal saline. haemorrhage after the delivery of the placenta 2. If the uterus still tends to relax, examine is summarised in flow diagram 5-II. the placenta again, to check whether it is complete. 5-25 What clinical signs indicate that the 3. If the placenta is not complete, manage the bleeding is caused by an atonic uterus? patient as detailed in section 5-28. 4. If the placenta is complete and the uterus 1. The uterus is atonic (feels soft and spongy), remains poorly contracted, the patient or tends to become atonic after it is rubbed must be referred to a hospital with theatre up or after an oxytocin infusion is given. facilities. This is an extremely serious 2. The bleeding is intermittent and consists complication, which could result in the mainly of dark red clots. patient’s death. While waiting for the 3. If the uterus is rubbed up and becomes theatre or arranging transfer, the following well contracted, a large amount of dark red management must be followed: blood clots escapes from the vagina.
  • 9. 98 INTRAPAR TUM CARE Flow diagram 5-2: The management of a patient with a postpartum haemorrhage after the delivery of the placenta • Start a second, rapidly running, bleeding, until the patient is in theatre intravenous infusion and take a sample or until she reaches a level 2 hospital. of blood for urgent cross-matching. A • Lie the patient flat, or in the head- blood transfusion must be started as down position and give oxygen by soon as possible. means of a face mask. • The uterus must be bi-manually 5. Place three misoprostol (Cytotec) tablets compressed as explained in Step 2 of (one tablet = 200 μg) in the patient’s rectum. section 5-23. This should control the
  • 10. THE THIRD STAGE OF LABOUR 99 5-28 What is the further management of is clamped. The balloon catheter is used in postpartum haemorrhage due to an atonic conjunction with oxytocics or misoprostol. uterus if the initial management fails? It is important to note that the clinician must All patients that did not respond to the initial progress to the next step without delay until it emergency management should be transferred is certain that the bleeding has stopped. as acute emergencies to an appropriate level of If the bleeding persists a laparotomy (midline care, which will be at least level 1 hospitals with incision) is required: theatre facilities and emergency blood available. 1. If the patient has completed her family or Prostaglandin F2-alpha is a potent uterotonics is of high parity, proceed directly with a agent. The drug may be injected into the total abdominal hysterectomy. myometrium. 5 mg is added to 20 ml saline 2. If the patient is primiparous or of low parity, and 2 ml injected into various sites in the the following steps could be followed: myometrium being careful not to inject • The patient is draped in the lithotomy intravascularly. Alternatively 5 mg may be position with the legs angled slightly added to a litre of the crystalloid infusion. downwards at about 30 degrees. If the uterus continues to relax, the patient This allows the surgeon more room needs to be taken to theatre in a level 2 hospital. during the operation. This will allow Four units of blood and a person with the skills immediate inspection to assess the to do an emergency hysterectomy need to be result of intra-abdominal measures to available if required. While waiting for theatre reduce blood loss. bi-manual compression of the uterus should be • Compression sutures are inserted applied to reduce further blood loss. (B-Lynch sutures). The bladder peritoneum is opened. A Vicryl 1 suture In theatre an examination under general is passed through the lower segment anaesthetic (EUA) is done: 2–3 cm from the lateral border of the 1. Inspect the vagina and cervix for tears. uterus. These sutures are tied as tight as 2. A bi-manual examination and exploration possible on top for the uterus 3–4 cm of the uterine cavity with two fingers for medial to the uterine cornu. retained placental tissue and a possible 3. If the bleeding persists systematic laceration. devascularisation of the uterus is required. 3. The uterus is further emptied with a large Number one absorbable suturing material is ovum forceps and then firmly curetted used on a large round bodied (taper) needle. with a Baum’s curette. • First, ligate the uterine artery. A suture is inserted through full thickness Trans-abdominal ultrasound in theatre is of myometrium just above the deflection value to confirm that the uterus is empty. of the broad ligament on the pelvic Inserting a balloon cather could be valuable to floor. This will be at the level of the reduce the bleeding while waiting for theatre internal os of the cervix. The anterior or if the patient is primiparous or of low entry and posterior exit point of the parity, where a hysterectomy after evacuation needle will be 2 cm medial to the would be a last option. The balloon cather lateral insertion of the broad ligament. is made by using a large Foley’s catheter and Pass the needle back from posterior to surgical latex glove. The glove is tied around anterior through an avacular portion of the Foley’s catheter above the bulb. Any suture the broad ligament and tie a tight knot. material can be used. Saline is infused under If bleeding persists a similar suture is pressure into the glove either by injecting with inserted on the other side of the uterus. a syringe or by squeezing a vacolitre. Once • If bleeding persists the anastomosis of 500 ml of saline has been infused the catheter the ovarian and uterine artery is ligated
  • 11. 100 INTRAPAR TUM CARE with a similar suture inserted above 5-30 What can be done to reduce the the level of the insertion of the ovarian risk of postpartum haemorrhage? ligament to the uterus and below the In patients who are at high risk of postpartum uterine tube. Both anastomoses need to haemorrhage (e.g. multiple pregnancy, be ligated with persistent bleeding. polyhydramnios or grande multiparity) the • If bleeding persists proceed with following should be done: a hysterectomy as a life saving procedure. A less experienced 1. An intravenous infusion should be started surgeon should perform a subtotal during the active phase of the first stage hysterectomy, by amputating the uterus of labour. above the cervix following the ligation 2. Twenty units of oxytocin in 1000 ml of the uterine arteries. Basol or normal saline should be given by rapid infusion after the placenta has been As a general principle the decision to do a delivered. hysterectomy must not be postponed too 3. Make sure that the uterus is well long. Continued blood loss requiring the contracted during the first hour after the transfusion of five or more units of blood delivery of the placenta and make sure that compromise blood clotting and increase the the patient empties her bladder frequently. risk of a maternal death. 5-31 What clinical signs indicate 5-29 What should be done if the that the bleeding is from a tear? membranes or placenta are not complete after delivery and the 1. The uterus is well contracted. patient is not bleeding? 2. A continuous trickle of bright red blood comes from the uterus in spite of a well 1. Incomplete membranes usually do not contracted uterus. cause any complications. 2. An incomplete placenta with one or more cotyledons missing can cause a postpartum Bleeding from a tear causes a continuous trickle haemorrhage due to an atonic uterus. of bright red blood in spite of a well contracted Therefore, manage as follows: uterus. • An intravenous infusion of 20 units oxytocin in 1000 ml Basol or normal saline must be started to make sure that 5-32 What is the correct management the uterus is well contracted. if the clinical signs indicate that • Arrange for an evacuation of the uterus the bleeding is from a tear? or transfer the patient to a hospital with The patient should be placed in the lithotomy theatre facilities to evacuate the uterus. position and examined as follows: • Keep the patient ‘nil per mouth’ as a general anaesthetic will be necessary. 1. First the perineum must be examined for bleeding from a a tear or episiotomy. Repair any tear or episiotomy. An evacuation of the uterus under general 2. Thereafter, the vagina must be examined anaesthesia is required if placental cotyledons for a tear using the index finger of each are retained in the uterus. hand to hold the vagina open. If available, a retractor (a Werdheim’s retractor) is helpful in examining the vagina. If a tear is found it must be sutured.
  • 12. THE THIRD STAGE OF LABOUR 101 3. If a perineal or vaginal tear cannot be require a laparotomy and in most cases a found, a cervical tear or even a ruptured hysterectomy. uterus may be present. 5-34 What is the correct management 5-33 What will the further management for bleeding from an episiotomy? be once a perineal and vaginal tear has 1. If the episiotomy has not yet been stitched, been excluded and the bleeding persists? it should be repaired. Make sure that all The patient is put into the Lithotomy position. bleeding stops. A good light and a cervical suturing pack must 2. If the episiotomy has already been repaired, be available. The cervical suturing pack contains the stitches must be removed and the three swab holders, a Sims speculum (or bleeding vessels must be identified and tied Auvard’s speculum) and a Werdheim retractor. off. Then the episiotomy must be resutured. The postpartum cervix is very floppy and it can be difficult to orientate oneself. Also there is 5-35 Which patients are at high often a lot of blood making vision difficult. risk of a cervical tear? 1. The vagina is held open with a posterior 1. Patients who bear down and deliver an inserted Sims speculum (or Auvard’s infant before the cervix is fully dilated. speculum) and an anterior inserted 2. Patients with a rapid labour when the cervix Werdheim retractor. A swab holder is dilates very quickly (a precipitous delivery). placed on the cervix at 12 o’clock to serve 3. Patients who have an instrument delivery. as a marker. A second swab holder is placed next to it. The part of the cervix 5-36 How can you recognise between the swab holders is inspected for an inverted uterus? a tear. A third swab holder is placed next to the second swab holder and the part 1. The diagnosis must be considered if a of the cervix between the swab holders patient suddenly becomes shocked during is inspected for a tear. The second swab the third stage of labour without excessive holder is then placed next to the third vaginal bleeding. swab holder and the cervix between them 2. No uterus is palpable on abdominal examined. The process of alternating examination. the second and third swab holders and 3. The uterus lies in the vagina or may even examining the cervix in between is repeated hang out of the vagina. around the cervix until one reaches the first ‘marker’ swab holder. The entire cervix will 5-37 What is the management of a then have been thoroughly examined. patient with an inverted uterus? 2. If a cervical tear is found, two swab holders 1. Two fast running intravenous infusions are placed on both sides of the tear and if must be started to treat the shock. downward traction allows the full length 2. The patient must be transferred to a level 2 of the tear to be seen, the tear is sutured. or 3 hospital as an emergency. If the apex of the tear cannot be seen the patient needs to be taken to theatre and Bleeding disorders can also result in consent signed and preparations made for postpartum haemorrhage. Placental abruption a possible hysterectomy. is the commonest cause of a bleeding disorder 3. In theatre a bi-manual examination and in the third stage of labour. In this situation exploration of the uterine cavity with two it is extremely important to ensure that the fingers for retained placental tissue is done. uterus is well contracted after the delivery of If the apex of the cervical laceration is the placenta. The powerful contraction of the seen, the tear is sutured. Larger tears will
  • 13. 102 INTRAPAR TUM CARE uterus plays a greater role than blood clotting Procedures aimed at preventing the infection of in the prevention of bleeding. staff with HIV must be strictly enforced. PROTECTING THE STAFF CASE STUDY 1 FROM HIV INFECTION DURING LABOUR Following normal first and second stages of labour, the third stage of labour is actively managed. The patient was not hypertensive 5-38 What should be done during during her pregnancy and does not have a labour to prevent the staff from history of heart valve disease. Syntometrine is becoming infected with the human given by intramuscular injection and the patient immunodeficiency virus (HIV)? is observed for signs of placental separation. All patients should be regarded as being potentially infected with HIV, the virus which 1. Were the necessary precautions taken causes AIDS (acquired immunodeficiency before giving the Syntometrine ? syndrome). The virus is present in blood, No. A second twin must be excluded before liquor and placental tissue. Contamination giving the Syntometrine. of the eyes or cuts on the hands or arms, and pricks by contaminated needles carry a small 2. Is the third stage of labour being risk of causing infection. correctly managed by the active method? Therefore, the following precautions should be No. The placenta must be delivered when taken for all deliveries: the uterus contracts. If the active method of 1. The person conducting the delivery must managing the third stage is used, it is incorrect wear gloves and a plastic apron. A face to wait for signs of placental separation. mask and goggles are recommended. People wearing glasses need only a mask to 3. How soon after giving the Syntometrine protect their face. does the uterus contract? 2. Any person who resuscitates the infant or cleans the labour ward after the delivery Syntometrine includes oxytocin which causes must wear gloves. uterine contractions two to three minutes after 3. The umbilical cord must be squeezed intramuscular administration. to empty it of blood before applying the second clamp. This will prevent blood 4. What should have been done as spurting out when the cord is cut. soon as the uterus contracted? 4. Injection needles must be placed in a The umbilical cord should have been steadily sharps container immediately after being pulled with one hand while the other hand was used. Needles must not be replaced into pushing upwards on the uterus, i.e. controlled their sheaths. cord traction. Placental separation and then 5. When an episiotomy is repaired, the needle placental delivery occur with the uterine must only be held with needle holder and contraction. the tissues with forceps. 6. The needle should be cut loose from the suture material and replaced in the dish as soon as possible. When the needle is to be used again, it must be held in a safe manner with forceps.
  • 14. THE THIRD STAGE OF LABOUR 103 5. What should be done if placental 3. What should be done in a peripheral separation does not take place with clinic if the placenta is retained? the first uterine contraction? The patient should be transferred to a hospital A second uterine contraction will occur five with theatre facilities for a manual removal of to six minutes after giving Syntometrine by the placenta under general anaesthesia. intramuscular injection due to the action of the ergometrine. A second attempt must now 4. What complication is this patient be made to deliver the placenta by controlled at high risk of developing? cord traction. Most placentas which are not delivered with the first contraction will be A postpartum haemorrhage due to an atonic delivered with the second contraction. uterus. 5. What should have been done CASE STUDY 2 in this case to make the patient’s transfer to hospital safer? A patient with normal first and second stages An intravenous infusion of 20 units oxytocin of labour has been delivered by a midwife in 1000 ml Basol or normal saline should working alone at a peripheral clinic. A second have been started. She should also have been twin is excluded on abdominal examination carefully observed to make sure that the uterus and the passive method is used to manage the was well contracted. Make sure that the uterus third stage of labour. After 30 minutes there remains well contracted, and measure the has been no sign of placental separation. A blood pressure and pulse rate every 15 minutes diagnosis of retained placenta is made and the until the patient is transferred. doctor in the nearest district hospital phoned. The doctor agrees to accept the patient and arranges ambulance transfer to the hospital. CASE STUDY 3 1. Is the diagnosis of a retained After normal first and second stages of labour placenta correct? in a grande multipara, the placenta is delivered No. The diagnosis of retained placenta can by the active management of the third stage only be made if the placenta is not delivered of labour. There are no complications. Half after the active method of managing the third an hour later you are called to see the patient stage of labour has been used. The correct as she is bleeding vaginally. You immediately diagnosis is a prolonged third stage of labour. measure her blood pressure which indicates that she is shocked. 2. What should have been done in this case of a prolonged third stage of labour? 1. Was the patient’s third stage of labour correctly managed? The placenta should have been delivered by the active method of managing the third No. As the patient falls into a high risk group stage of labour, i.e. by giving oxytocin 10 for postpartum haemorrhage, an intravenous units intramuscular and using controlled infusion should have been started during the cord traction. first stage of labour. Twenty units of oxytocin should have been added to the infusion after the placenta was delivered. The patient should also have been carefully observed to make sure that the uterus remained well contracted.
  • 15. 104 INTRAPAR TUM CARE 2. Do you agree that the first step in the examination the cervix was found to be 7 cm management of postpartum haemorrhage dilated and paper thin. When observations is to measure the blood pressure? were made an hour after delivery of the placenta, the patient was found lying in a pool No. The first step should be to rub up the of blood. Her uterus was well contracted and uterus in order to stop the bleeding. her bladder was empty. 3. What should be the further 1. What should be the next step in management of this patient? the management of this patient? A rapid intravenous infusion of 20 units A rapid intravenous infusion of 20 units oxytocin in 1000 ml Basol or normal saline oxytocin in 1000 ml Plasmalyte B or normal should be started. Make sure that the uterus is saline should be started and you should make well contracted. Then check that the patient’s sure that the uterus is well contracted. bladder is empty as a full bladder can cause relaxation of the uterus. 2. In spite of this management a continuous trickle of bright red 4. What additional management blood is observed. What is the most is needed for this patient? likely cause of the bleeding? The cause of the bleeding must now be found. A tear. The two important causes of postpartum haemorrhage are an atonic uterus or a tear. 3. Why is this patient at high risk of a cervical tear? 5. What is the most probable cause of this patient’s postpartum haemorrhage? Because the infant was delivered through an incompletely dilated cervix. As she is a grande multipara the most likely cause is an atonic uterus. 4. What should be the next step in the management of this patient? 6. What are the clinical signs of bleeding due to an atonic uterus? The patient must be placed in the lithotomy position and be examined for a vaginal or The uterus will not be well contracted and perineal tear. Any tear must be sutured. will tend to relax after it is rubbed up. In addition, the bleeding is not continuous but occurs in episodes, and the blood consists of 5. The midwife who is managing this dark red clots. patient does not find either a vaginal or perineal tear. What should be the next step in the management of this patient? CASE STUDY 4 A doctor should examine the patient for a cervical tear. The most likely site of a tear is the A primigravid patient who did not co-operate cervix as this patient probably delivered before well during the first stage of labour delivers full cervical dilatation. soon after a vaginal examination. At the