2. ObjectivesObjectives
Review the pharmacology, dosing, andReview the pharmacology, dosing, and
indications for RSI medicationsindications for RSI medications
Discuss the side-effects and contraindicationsDiscuss the side-effects and contraindications
for RSI medicationsfor RSI medications
Discuss medications for specific patientsDiscuss medications for specific patients
3. Pearls of Resuscitation MedicationPearls of Resuscitation Medication
Determine diagnosis and verbalize to teamDetermine diagnosis and verbalize to team
Verbalize medications that might be usedVerbalize medications that might be used
Special circumstances in pediatric age groupsSpecial circumstances in pediatric age groups
5. Pre-medicationsPre-medications
AtropineAtropine
Inhibits acetylcholine receptors in parasympathetic system.Inhibits acetylcholine receptors in parasympathetic system.
Inhibits histamine and serotonin receptorsInhibits histamine and serotonin receptors
Used to decrease airway secretionsUsed to decrease airway secretions
Used to decrease reflex bradycardiaUsed to decrease reflex bradycardia
Dose: 0.02mg/kg (min of 0.1mg; max of 1mg)Dose: 0.02mg/kg (min of 0.1mg; max of 1mg)
7. SedativesSedatives
EtomidateEtomidate
Ultra-short acting imidazole (non-barbiturate) hypnoticUltra-short acting imidazole (non-barbiturate) hypnotic
Duration 10-15 minutesDuration 10-15 minutes
Advantages:Advantages:
Decreases ICP and cerebral metabolic rateDecreases ICP and cerebral metabolic rate
Minimal hemodynamic effects (maintains blood pressure)Minimal hemodynamic effects (maintains blood pressure)
Disadvantages:Disadvantages:
Adrenal suppressionAdrenal suppression
May cause myoclonus, cough, vomitingMay cause myoclonus, cough, vomiting
Dose: 0.3mg/kg (max of 20mg)Dose: 0.3mg/kg (max of 20mg)
What to remember:What to remember:
Reduces ICP without systemic involvementReduces ICP without systemic involvement
Can cause myoclonus-resembles seizuresCan cause myoclonus-resembles seizures
Caution use in patients with adrenal insufficiencyCaution use in patients with adrenal insufficiency
8. SedativesSedatives
MidazolamMidazolam
Binds to and activates benzodiazipine receptor in GABABinds to and activates benzodiazipine receptor in GABA
Causes less cardiovascular and respiratory depression thanCauses less cardiovascular and respiratory depression than
thiopentalthiopental
Used less often in RSI due to need to titrate for sedationUsed less often in RSI due to need to titrate for sedation
effect and wide response rangeeffect and wide response range
Advantages:Advantages:
Can facilitate intubation without paralyticCan facilitate intubation without paralytic
Rapid onsetRapid onset
Disadvantages:Disadvantages:
HypotensionHypotension
Usually combined with opiate for RSIUsually combined with opiate for RSI
Dose: 0.1mg/kg (max of 5mg for 1st dose)Dose: 0.1mg/kg (max of 5mg for 1st dose)
9. SedativesSedatives
Thiopental SodiumThiopental Sodium
Binds to and activates barbiturate receptor on GABABinds to and activates barbiturate receptor on GABA
Ultra-shourt acting barbiturateUltra-shourt acting barbiturate
Duration 5-10 minDuration 5-10 min
Onset of action 10-20 secondsOnset of action 10-20 seconds
Contraindicated in porphyria and status asthmaticusContraindicated in porphyria and status asthmaticus
Advantages:Advantages:
Decreases ICP and cerebral metabolismDecreases ICP and cerebral metabolism
Reduces cerebral oxygen demandReduces cerebral oxygen demand
AnticonvulsantAnticonvulsant
Disavantages:Disavantages:
Causses hypotensionCausses hypotension
Myocardial depressionMyocardial depression
Causes vasodilationCauses vasodilation
Can cause bronchospasm (do not use in asthmatic patients)Can cause bronchospasm (do not use in asthmatic patients)
Dose: 3-5 mg/kg (max of 500 mg)Dose: 3-5 mg/kg (max of 500 mg)
What to remember:What to remember:
Reduces ICP but also reduces systemic blood pressureReduces ICP but also reduces systemic blood pressure
Is a barbiturate so will help to reduce seizure activityIs a barbiturate so will help to reduce seizure activity
Ultra short actingUltra short acting
10. SedativesSedatives
KetamineKetamine
produces dissociative anesthesiaproduces dissociative anesthesia
Rapid sedation, amnesia and analgesiaRapid sedation, amnesia and analgesia
Advantages:Advantages:
Analgesia and amnesiaAnalgesia and amnesia
BronchodilationBronchodilation
Maintains blood pressure and cardiac outputMaintains blood pressure and cardiac output
Disadvantages:Disadvantages:
Increases intraocular pressureIncreases intraocular pressure
Increases secretionsIncreases secretions
May cause laryngospasmMay cause laryngospasm
Dose: 1-2mg/kg/doseDose: 1-2mg/kg/dose
What to remember:What to remember:
No longer contraindicated in head traumaNo longer contraindicated in head trauma
Causes bronchodilation so good choice in asthmaticsCauses bronchodilation so good choice in asthmatics
Maintains blood presure so good choice in shock patientsMaintains blood presure so good choice in shock patients
Has an anxiolytic propertyHas an anxiolytic property
11. SedativesSedatives
FentanylFentanyl
Binds to opioid receptor in brainBinds to opioid receptor in brain
Shortest acting opioidShortest acting opioid
Useful adjuvant in induction agents lacking analgesic effect (etomidate,Useful adjuvant in induction agents lacking analgesic effect (etomidate,
thiopental, propofol)thiopental, propofol)
Advantages:Advantages:
Hemodynamic stabilityHemodynamic stability
May blunt sympathetic response to laryngoscopyMay blunt sympathetic response to laryngoscopy
Useful for post-intubation sedation/analgesiaUseful for post-intubation sedation/analgesia
Disadvantages:Disadvantages:
Lacks amnestic propertyLacks amnestic property
Can cause rigid chestCan cause rigid chest
Dose: 1-2mcg/kg/doseDose: 1-2mcg/kg/dose
12. SedativesSedatives
PropofolPropofol
Short-acting hypnotic agentShort-acting hypnotic agent
Advantages:Advantages:
Can facilitate intubation without paralysisCan facilitate intubation without paralysis
Rapid onsetRapid onset
Disadvantages:Disadvantages:
Apnea in childrenApnea in children
Cardiovascular depressionCardiovascular depression
HypotensionHypotension
No analgesia properties (must use opiate with propofol)No analgesia properties (must use opiate with propofol)
Dose: 2.5-3.5mg/kgDose: 2.5-3.5mg/kg
13. ParalyticsParalytics
SuccinylcholineSuccinylcholine
Blocks cholinergic receptor sitesBlocks cholinergic receptor sites
Depolarizing agentDepolarizing agent
Onset 30-60 secondsOnset 30-60 seconds
Lasts 3-12 minutesLasts 3-12 minutes
Dose: 1-2mg/kg/doseDose: 1-2mg/kg/dose
Caution:Caution:
Avoid use in Duchenne's muscular dystrophy, trauma, burns, crushAvoid use in Duchenne's muscular dystrophy, trauma, burns, crush
injury, renal failure and genetic disordersinjury, renal failure and genetic disorders
Can cause hyperkalemia, rhabdomyolysis, malignant hyperthermia,Can cause hyperkalemia, rhabdomyolysis, malignant hyperthermia,
hypertension and arrhythmiashypertension and arrhythmias
Contraindicated in glaucoma, penetrating eye injuries, myopathies,Contraindicated in glaucoma, penetrating eye injuries, myopathies,
neuromuscular disease, pseudocholinesterdase deficiencyneuromuscular disease, pseudocholinesterdase deficiency
14. ParalyticsParalytics
RocuroniumRocuronium
Blocks cholinergic receptor sitesBlocks cholinergic receptor sites
Non-depolarizing agentNon-depolarizing agent
Fasting onset and shortest duration ofFasting onset and shortest duration of
nondepolarizing agentsnondepolarizing agents
Onset 30-90 secondsOnset 30-90 seconds
Lasts 25-60 minutesLasts 25-60 minutes
Reversal agent now available (sugammedex)Reversal agent now available (sugammedex)
Dose: 1mg/kg/doseDose: 1mg/kg/dose
15. ParalyticsParalytics
VecuroniumVecuronium
Blocks cholinergic receptor sitesBlocks cholinergic receptor sites
Non-depolarizing agentNon-depolarizing agent
0.1mg/kg/dose0.1mg/kg/dose
Onset 90-120 secondsOnset 90-120 seconds
Longest acting paralytic (60-90min)Longest acting paralytic (60-90min)
Better in use to maintain paralysis rather than RSIBetter in use to maintain paralysis rather than RSI
Dose: 0.2mg/kg/doseDose: 0.2mg/kg/dose
Notes de l'éditeur
Atropine: accelerates sinus and atrial pacemakers and increases conduction through the AV node
Future: MOA, uses/indications, onset of action, lit support, dose
Etomidate:
Ultra-short acting imidazole hypnotic (duration 10-15 min)
Dose 0.3 mg/kg (max ~ 20 mg)
Advantages
Decreases ICP/IOP and cerebral metabolic rate
Minimal hemodynamic effects—BP maintained
Disadvantages
Adrenal suppression (transient with single dose)
Injection pain
Myoclonus, cough, hiccups
Vomiting
Sympathetic stimulation/hypertension (fentanyl attenuates)
?Lowered seizure threshold
Drug of choice for multiple trauma w/ head injury
Avoid in adrenal insufficiency, ?sepsis/septic shock
Midazolam () cause less cardiovascular and respiratory depression than thiopental
Used less often in RSI due to need to titrate for sedation effect and wide response range
Most pediatric intubation experience in OR setting
Advantages
Can facilitate intubation without paralysis
Rapid onset, highly effective
Disadvantages
Hypotension
Usually combined with opiate
Fentanyl or remifentanil 3 mcg/kg +
propofol 3 mg/kg
Further study before routine ED use
Thiopental: causes vasodilatation and myocardial depression-can cause hypotension
Can cause bronchospasm
Reduces ICP, cerebral metabolism and cerebral oxygen demand
Avoid in hypotnensive or hypovolemic patients
Ultra-short acting barbiturate (duration 5-10 min)
Dose 3-5 mg/kg IV
Advantages
Decreases ICP
Decreases cerebral metabolism
Anticonvulsant
Highly effective
Disadvantages
Myocardial depression, hypotension
?Bronchospasm, laryngospasm
Good agent for normotensive patient with head injury, seizures
Avoid in patients with hypotension, hypovolemia, shock (or give lower dose, e.g. 1-2 mg/kg)
Ketamine: Increases blood pressure and intraocular pressure
SE: hallucinations, secretions (consider atropine), laryngospasm
NO longer contraindicated in head trauma
Dissociative agent
Dose 1-2 mg/kg
Advantages
Analgesia, amnesia
Bronchodilation
Preservation of CO, BP
Disadvantages
May increase ICP, IOP
Increased secretions (reduced by atropine)
Emergence reactions (adolescents/adults)
Good agent for asthma, hypotension/shock
Avoid in increased ICP/IOP, uncontrolled HTN
Fentanyl: Rigid chest-reverse with naloxone or paralytic
Useful adjunct to induction agents lacking analgesic effect (etomidate, thiopental, propofol)
Dose 1-3 mcg/kg
Advantages
Hemodynamic stability (lacks histamine release)
May blunt sympathetic response to laryngoscopy
Disadvantages
Chest wall rigidity (high doses)
Opiates only mildly sedating
Lacks amnestic effect
Useful for post-intubation sedation/analgesia
Propofol dose is different for RSI vs sedation (sedation is 1mg/kg)
Most pediatric intubation experience in OR setting
Advantages
Can facilitate intubation without paralysis
Rapid onset, highly effective
Disadvantages
Hypotension
Usually combined with opiate
Fentanyl or remifentanil 3 mcg/kg +
propofol 3 mg/kg
Further study before routine ED use
Depolarizing agent
Defasciculating dose not necessary in children less than 5yo (dose is 0.1mg/kg)
Can cause malignant hyperthermia, hyperkalemia, hypertension and arrhythmias
Depolarizing agent; not reversible
Dose 1.5-2 mg/kg (higher dose for infants)
Advantages
Rapid onset—20-60 seconds
Brief duration—5-10 minutes
Disadvantages
?Increased ICP/IOP
Bradycardia—uncommon in RSI setting
Fasciculations (minimal in children)
Raises potassium ~ 0.5 mEq/L; life-threatening hyperkalemia in patients with muscular dystrophy/myopathy, denervation, catabolic states, renal failure, s/p major burn/crush
Contraindications:
Malignant hyperthermia/associated conditions
Muscular dystrophy
Central core disease
Chronic myopathy
Denervating neuromuscular disease
Pre-existing hyperkalemia
Plasma cholinesterase deficiency (prolonged paralysis)
>48-72 hours after burns, major trauma, crush injury, denervation
Fewer adverse effects than succ but succ shorter duration
Rocuronium now has a reversal agent-sugammedex
Non-depolarizing agent
Dose 0.9-1.2 mg/kg
Onset 60-90 seconds (faster in infants/children)
Duration 30-60 minutes
Advantages
Fastest onset in this class
Minimal CV effects
Disadvantages
Long duration (even longer in infants)
Best choice if succinylcholine contraindicated; many consider drug of choice for RSI
Must be reconstituted-takes time to prepare
Non-depolarizing agent
Dose 0.2 mg/kg for RSI
Dose 0.1 mg/kg for standard paralysis
Onset 90-120 seconds
Duration 30-120 minutes (dose-dependent)
Not ideal for RSI, but useful for post-intubation paralysis
Pancuronium-slow onset, more cardiovascular effects
Atracurium-causes histamine release and cardiovascular side effects