SMACC Conference Reuben Strayer Ketamine is best known for producing dissociative anesthesia by a unique mechanism where cardio-respiratory function is preserved. It has an extraordinary safety profile that lends itself well to a variety of uses in the emergency department, intensive care, and pre-hospital environments. We will discuss many of these applications, with a focus on the myths and controversies that might discourage emergency clinicians from taking advantage of this remarkable agent.
8. pro
complete analgesia, sedation, amnesia
airway reflexes maintained
cardiorespiratory tone augmented
rapid onset, predictable duration
can be used intramuscularly
unmatched margin of safety
con
hypertension, tachycardia
hypertonicity
hypersalivation
no reversal agent
psychiatric distress
ketamine for procedural sedation
Brown 2008
Chong 2013
9. ketamine for procedural sedation
anticipate
ketamine brain continuum - be careful with small doses
treat
prevent
pre-induction comfort
pre-induction coaching
psychiatric distress is not a reason not to use ketamine
vs. ketofol Green 2011
10. ketamine for RSI
partial dissociation and emergence distress not a concern
vs etomidate
can be used in all patients where increase in HR and BP is acceptable
take advantage of the flat part of the brain continuum: dose big
unless obtunded and very hypotensive
the contraindication myths have been debunked
increased ICP
increased IOP
psychiatric disease
Chang 2013
Filanovsky 2010
Himmelseher 2005
Sehdev 2006
Halstead 2012
Drayna 2011
Le Cong 2010
excellent for all hypotensive patients, including trauma
optimal for patients being intubated for asthma or COPD
12. severe oxygenation
or ventilation deficit?
NIV, KSIyes
no
yes preoxygenate
obtunded, no blood pressure? NoSIyes
resuscitate
time,
cooperation?
no
KSI
double setup
yes
awake intubation
high risk to vomit? yes
RSI
double setup
no
yes
glycopyrrolate
lidocaine
head elevation
NG tube
LMA ventilation if needed
high concern for
difficult laryngoscopy?
RSIno
no
ready with plan B, C, D
apneic?
yes
RSI
tolerates optimal
preoxygenation?
DSInono
13. abdominal migraine
chronic ischemic pain
atypical odontalgia
phantom pain
postherpetic neuralgia
post-stroke pain
spinal injury pain
TMJ joint arthralgia
intractable headache
ketamine for analgesia
ketamine is a powerful analgesic - 0.15 mg/kg
when opioids are not effective
when opioids are not desired
daily opioid users with chronic pain and some other reason to be in the ED
Bell 2009
Ahern 2013
Fine 1999
Gharaei 2012
Jennings 2011
Richards 2012
Zempsky 2010
Beaudoin 2014
Ding 2014
low back pain
chronic pancreatitis
fibromyalgia
myofascial pain syndrome
complex regional pain syndrome
sickle cell
opioid withdrawal
neuropathic pain
cyclic vomiting
gastroparesis
14. ketamine for analgesia
ketamine is a powerful analgesic - 0.15 mg/kg
when opioids are not effective
when opioids are not desired
daily opioid users with chronic pain and some other reason to be in the ED
recovered opioid addicts with acute pain
marginal blood pressure or breathing
bolus vs. drip
Bell 2009
Ahern 2013
Fine 1999
Gharaei 2012
Jennings 2011
Richards 2012
Zempsky 2010
Beaudoin 2014
Ding 2014
20 mg over 10 minutes, then
20 mg/hour titrated to effect
not PSA - no monitoring required
16. ketamine for tranquilization
speed, safety, reliability, IM
increases in HR and BP less than uncontrolled thrashing rage
this is procedural sedation - treat as such
ketamine 500 mg IM x 1
ACEP 2009
Roberts 2001
Burnett 2012