This document provides an overview and summary of a presentation on assessing pain, sedation, and delirium in intensive care unit patients. It discusses:
- The importance of using validated scales like the Richmond Agitation-Sedation Scale (RASS) and Sedation-Agitation Scale (SAS) to accurately assess sedation levels in patients receiving sedatives.
- The challenges of assessing delirium given confounding factors like a patient's sedation level, wakefulness, and other psychiatric diagnoses. Scales like the Confusion Assessment Method for the ICU (CAM-ICU) are used but their accuracy depends on a patient's sedation.
- How pharmacokinetic factors like drug-
1. ASSESSING PAIN, SEDATION AND DELIRIUM:
PRAGMATICS, PHARMACOKINETICS AND
CONFOUNDERS
November 19 2013
19 november 2013
** All lines are muted upon entry. If you have any questions, please raise
your hand or CHAT to Host **
2. Your Hosts & Presenters
Vos hôtes & et présentateurs
Dr. Denny Laporta, Chair Canadian ICU Collaborative
Président, Collaboration canadienne des soins intensifs
Bruce Harries, Collaborative Director
Directeur de la Collaboration
Dr. Yoanna Skrobik, Intensivist, Hôpital Maisonneuve Rosemont,
Montréal
Paule Bernier, SIA for Quebec Campaign (SHN)
Conseillère en amélioration et sécurité, SSPSM (Québec)
Ardis Eliason, Project Coordinator and Technical Host for today’s session
Coordonatrice de projet et hôte technique
Leanne Couves, Improvement Advisor and Moderator
Conseillère en amélioration et Animateur
11/19/2013
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3. Faculty
Membres de la faculté
Denny Laporta, MC, FRCPC
Claudio Martin, MD, FRCPC
Yoanna Skrobik, MD, FRCPC
Paule Bernier, Dt.P., M.Sc.
John Muscedere, MD, FRCPC
Cathy Mawdsley, RN, M.Sc.
Anne MacLaurin, Project Manager, Canadian
Patient Safety Institute (CPSI) /Coordonatrice de
projets, ICSP
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4. Interacting in WebEx: Today’s Tools
Interagir dans Webex : outils à utiliser
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Avez-vous déjà utilisé WebEx?
YES / OUI NO / NON
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utiliser les outils :
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- le pointeur
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- lever la main
- CHAT
- clavardage
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- Outil textuel
“writing on the slide” pour « écrire sur la
diapo »
- Shape Tools
11/19/2013
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Select
‘send to’
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6. POINTER
What professions are represented?
Quelles professions sont représentées?
Nurse/
infirmière
Infection
ControlPCI
MD
Educator /Éducateur
Quality Improvement
Professional/Professionnel
en amélioarion de la
qualité
Administrator /Administrateur
Senior Leader
Psychiatry/
psychiatrie
Other/
autre
Pharmacy/
pharmacie
11/19/2013
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6
7. Objectives
But de l’appel
Comprendre quand délirium peut
Understand when delirium can
et ne peut pas être évalué, et
and cannot be assessed, and how
comment les sédatifs compliquent
sedatives make an accurate
cette évaluation
assessment more complicated
Comprendre pourquoi la
Understand why different
génétique, la co-administration de
genetics, administering more than
plusieurs médicaments ou la durée
one drug or duration of sedative
de l'administration des sédatifs
drug administration can change
changent leur effet thérapeutique ;
therapeutic effect and why it
les aspects pertinents aux soins
matters in the critically ill
intensifs sont évalués
11/19/2013
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8. Assessing pain, sedation and delirium:
pragmatics, pharmacokinetics and
confounders
Dr. Yoanna Skrobik
9. Assessing pain, sedation and
delirium: pragmatics,
pharmacokinetics and confounders
Yoanna Skrobik MD FRCP(c)
13. assessing pain, sedation and delirium:
pragmatics, pharmacokinetics and confounders
Introduction
Pain scales and their importance
The scales we use for sedation
The scales we use for delirium
Pharmacokinetics and their role in the continuum
The confounders
conclusion
14. assessing pain, sedation and delirium:
pragmatics, pharmacokinetics and
confounders
Introduction: why you should care
15. why we should care (introduction)
• Pain, Sedation and delirium monitoring are mandated
on critical care wards for Canadian hospital accreditation
• Sedatives and opiates are administered to many patients and more medications
are administered in ICU than on most hospital wards
• Excessive sedation is common, and is related to drug kinetics or interaction
• This makes delirium screening challenging
16. Clinical Practice Guidelines for the
Management of Pain, Agitation, and
Delirium in Adult Patients
in the Intensive Care Unit
Authors: Juliana Barr, MD, FCCM; Gilles L. Fraser, PharmD, FCCM; Kathleen Puntillo, RN, DNSc, FAAN; E.
Wesley Ely, MD, MPH, FACP, FCCM; Céline Gélinas, RN, PhD; Joseph F. Dasta, MSc; Judy E. Davidson, DNP, RN;
John W. Devlin, PharmD, FCCM; John P. Kress, MD; Aaron M. Joffe, DO; Douglas B. Coursin, MD; Daniel L. Herr,
MD, MS, FCCM; Avery Tung, MD; Bryce RH Robinson, MD, FACS; Dorrie K. Fontaine, PhD, RN, FAAN; Michael A.
Ramsay, MD; Richard R. Riker, MD, FCCM; Curtis N. Sessler, MD, FCCP, FCCM; Brenda Pun, RN, MSN, ACNP;
Yoanna Skrobik, MD, FRCP; Roman Jaeschke, MD, MSc
21. pain
Adult ICU patients, both medical and surgical, routinely
experience pain, both at rest and with routine ICU care .
Pain in adult cardiac surgery patients, especially women, (i.e.,
incisional pain due to coughing, respiratory care procedures,
and mobilization) remains prevalent and poorly treated .
Procedural pain is common in adult ICU patients .
26. Monitoring sedation
The RASS and SAS scales are valid and reliable for
measuring quality and depth of sedation in adult ICU patients .
27. Sedation-Agitation Scale (SAS)
Score
State
Behaviors
7
Dangerous Agitation
6
Very Agitated
5
Agitated
4
Calm and
Cooperative
3
Sedated
2
Very Sedated
Arouses to physical stimuli but does not communicate or
follow commands
1
Unarousable
Minimal or no response to noxious stimuli, does not
communicate or follow commands
Pulling at ET tube, climbing over bedrail, striking at staff,
thrashing side-to-side
Does not calm despite frequent verbal reminding, requires
physical restraints
Anxious or mildly agitated, attempting to sit up, calms down
to verbal instructions
Calm, awakens easily, follows commands
Difficult to arouse, awakens to verbal stimuli or gentle
shaking but drifts off
Riker RR, et al. Crit Care Med. 1999;27:1325-1329.
Brandl K, et al. Pharmacotherapy. 2001;21:431-436.
28. Richmond Agitation
Sedation Scale (RASS)
Score
State
+4
Combative
+3
Very agitated
+2
Agitated
+1
Restless
0
Alert and calm
-1
Drowsy
eye contact > 10 sec
-2
Light sedation
eye contact < 10 sec
-3
Moderate sedation
-4
Deep sedation
-5
Unarousable
Verbal Stimulus
no eye contact
physical stimulation
no response even with physical
Ely EW, et al. JAMA. 2003;289:2983-2991.
Sessler CN, et al. Am J Respir Crit Care Med. 2002;166(10):1338-1344.
Physical Stimulus
47. coma
Occurrence of coma not related to administered
midazolam or fentanyl doses
Coma occurrence correlated with the coadministration of CYP3A4/5 inhibitors (p=0.0046)
when adjusted for doses of fentanyl and
midazolam
51. Coma and the effect of CYP3A4/5 inhibitor coadministration
52. Bottom line
• Validated scales include SAS, RASS and probably MASS
• Ramsay and Glasgow not valid
• These scales should drive lowering sedation over time or
discontinuing it for longer periods
• The longer you are on sedatives and the more combined
drugs you receive the more likely you are to be ‘deep’
53. delirium
Van der Mast. PhD Thesis, Delirium After Cardiac Surgery, Erasmus University, Rotterdam,
1994
60. Delirium incidence
From 10% to > 85%
Intensive Care Med 27:1892-1900
JAMA 286:2703-2710
Crit Care Med 29:1370-1379
JAMA 291:1753-1762
Crit Care 5:265-270
Gen Hosp Psychiatry 17:371-379
Crit Care Med 32:2254-2259
J Am Geriatr Soc 51:591-598
Lancet 2010 Nov 27;376(9755):1829-37
…………..(10% of 6572 patients screened!)
62. DSM IV criteria
American Psychiatric Association,
Diagnostic and Statistical Manual IV, American
Psychiatric Press, Inc, Washington, DC, 1994
63.
64.
65.
66. The data when delirium is considered
in the light of sedation level
CAM-ICU and RASS comparison: 69% of CAM-ICU positive
assessments occurred in patients with a RASS ≤ 0
Over half of the patients with a RASS of -2 and 25% of those
with a RASS -1 were considered not assessable
Among patients whose RASS scored changed more than two
levels from the previous day, delirium with the CAM-ICU was
five times more likely …..
Numerous studies support the sedation level-positive delirium
screening relationship
67. Prevalence of delirium is a
function of wakefulness
Prevalence
CAM-ICU
positive (%)
Sedated
Wakeful
Absolute
Difference
Riker
45-75
12
30
Ely
83
40
43
Haenggi
53
31
22
Poston
73
49
24
Gusmao-Flores
89
32
57
Patel
?
?
30
IF this is related to sedation, patients should transition from CAM positive to
CAM negative when sedation is lightened
Riker. CCM 2012; 40:1092
Haenggi. ICM 2013; epub
Posten. AJRCCM 2010:A6701
Ely. JAMA 2001; 286:2703 Gusmao-Flores ICM 2013; epub
Patel. AJRCCM 2013; 187:A5237
70. Delirium and outcomes
Delirium is strongly associated with increased mortality and
LOS in adult ICU patients.
Delirium is moderately associated with the development of
post-ICU cognitive impairment in adult ICU patients.
74. Probably not six of one…
of 102 ICU patients, coma or a positive CAM-ICU result were 10
times more likely to occur prior to sedation interruption .
Patients with “delirium” that cleared as sedation was lightened
(termed “drug-related delirium”) had outcomes virtually identical
and better than patients who never had delirium
This dramatic difference was consistent for ventilator-, ICU-, and
hospital-free days and for one year mortality,
79. Intensive Care Delirium Screening
Checklist (ICDSC)
PATIENT EVALUATION
Altered level of consciousness* (A-E)
DAY 1
DAY 2
DAY 3
DAY 4
DAY 5
If A or B do not complete patient evaluation for the period
Inattention
Disorientation
Hallucination - delusion – psychosis
Psychomotor agitation or retardation
Inappropriate speech or mood
Sleep/wake cycle disturbance
Symptom fluctuation
TOTAL SCORE (0-8)
Bergeron, N. Dubois M.J. Skrobik, Y.
Intensive Care Delirium Checklist : evaluation of a new screening tool.
Intensive Care Medicine, 2001
80. icdsc
Of ICDSC’s 8 features “psychomotor slowing” should not be
considered if this slowing is attributable to sedative
administration
consciousness is recognized to be the least valid ICDSC
component, particularly when the ICDSC is performed by
nurses.
81. CAM ICU
The validity of the level of consciousness component has not
been tested with the CAM-ICU to date.
Should probably stratify positive score by RASS (-1,0 or 1 vs. -2
or less)
82. Summary of confounders
Psychiatric diagnoses
Sedation level
Operationally it boils down to judgement :-)
83. In conclusion
Pain assessment is the first priority
Sedation should be validated with a reproducible scale
Deep sedation is a lot more likely the longer you have been on
sedatives and the more simultaneously metabolized drugs you
are on (especially if doses, even prn, are not titrated down)
Delirium assessment should be documented with simultaneous
sedation score levels to ensure the data analysis can account
for the sedation confounders subsequently
Other psychiatric diagnoses and their role remain unexplored
87. Canadian ICU Collaborative
Faculty
Paule Bernier, P.Dt., Msc, Sir MB David Jewish General Hospital (McGill University), Montreal
Paul Boiteau MD, Department Head, Critical Care Medicine, Alberta Health Services; Professor of Medicine, University of
Calgary
Leanne Couves, Improvement Advisor, Improvement Associates Ltd.
Bruce Harries, Collaborative Director, Improvement Associates Ltd.
Denny Laporta MD, Intensivist, Department of Adult Critical Care, Jewish General Hospital; Faculty of Medicine, McGill
University
Anne MacLaurin, Project Manager, Canadian Patient Safety Institute (CPSI) /Coordonatrice de projets, ICSP
Claudio Martin MD, Intensivist, London Health Sciences Centre, Critical Care Trauma Centre; Professor of Medicine and
Physiology, University of Western Ontario; Chair/Chief of Critical Care Western
Cathy Mawdsley, RN, MScN, CNCC; Clinical Nurse Specialist – Critical Care, London Health Sciences Centre;
John Muscedere MD, Assistant Professor of Medicine, Queens University; Intensivist, Kingston General Hospital
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88. Reminders
Rappels
Call is recorded
Slides and links to
recordings will be
available on Safer
Healthcare Now!
Communities of Practice
Additional resources are
available on the SHN
Website and
Communities of Practice
11/19/2013
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