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Based on :
2010 American Heart Association Guidelines
www.circ.ahajournals.org
Elham Pishbin . M.D
Assistant Professor of Emergency Medicine
MUMS
Management of Cardiac Arrest
Advanced Life SupportAdvanced Life Support
A B CA B C
CHESTCOMp
Defibrillator attachedCHESTCOMp
Check Rhythm
VT , VF PEA, Asystole
Asystole / PEA
PEA : a heterogeneous group of organized electric
rhythms , with either absence of mechanical
ventricular activity or mechanical ventricular
activity that is insufficient to generate a
clinically detectable pulse.
Asystole : absence of detectable ventricular electric
activity with or without atrial electric activity.
DON’T INTERRUPTCHEST COMPRESSION
DON’T INTERRUPTCHEST COMPRESSIONPeriodic pauses in CPR should be as brief as possible and only as necessary to assess rhythm, shock VF/VT, perform a pulse check when an organized rhythm is detected, or place an advanced airway.
High quality CPR
Monitoring and optimizing
quality of CPR on the basis of
1- Mechanical parameters:
(rate & depth of compressions ,
relaxation, and minimization
of pauses)
2- Physiologic parameters :
(PETCO2 , arterial pressure
during the relaxation phase
of chest compressions, or ScvO2 )
Coronary Perfusion Pressure =(Aortic Relaxation P.) – (R.A Relaxation P)
It correlate with both Myocardial blood flow & ROSC.
Asystole / PEA (cont…)
The ability to achieve a good resuscitation outcome depends on:
1-Provide effective CPR
2-Identify and correct a cause of PEA / Asystole
All resuscitation team members must simultaneously Conduct a search for a underlying and treatable cause of the PEA in addition to performing their assigned role.
Asystole / PEA (cont…)
Asystole :
It is should be confirm that:
-Not another rhythm masquerading as a flat line
-Not the result of an operator error that is creating a flat line
Causes of an Isoelectric ECG:-Loose leads or leads not connected to the patient or defibrillator/monitor
-No power-Signal gain too low
Drug Therapy in Asys / PEA
A vasopressor can be given as soon as feasible with the
primary goal of increasing myocardial and cerebral blood
flow during CPR and achieving ROSC .
Available evidence suggests that the routine use of
atropine during PEA or asystole is unlikely to have a therapeutic benefit, SO
Atropine has been removed from
the cardiac arrest algorithm.
Rhythm
Shockable Nonshockable
VF AsystolePulseless VT PEA
V.F / Pulse-less V.T
The foundation of successful ACLS is : high quality CPR,
and, for VF/pulseless VT, attempted defibrillation
within minutes of collapse.
For victims of witnessed VF arrest, early CPR and rapid defibrillation can significantly increase the chance for survival to hospital discharge.
In comparison,
other ACLS therapies such as medications & advanced airways, although associated with an increased rate of ROSC, have not been shown to increase the rate of survival to hospital discharge and should be performed without compromising quality of CPR or timely defibrillation.
V.F / Pulse-less V.T
In other words :
vascular access , drug delivery , and advanced airway
should not cause significant
interruptions in chest compression
or delay defibrillation.
There is insufficient evidence to
recommend a specific timing or sequence (order) of drug administration and advanced airway placement during cardiac arrest.
Chest comp
V.F / Pulse-less V.T
When VF is present for more than a few minutes, myocardium is depleted of oxygen and metabolic substrates.
A brief period of chest compressions can deliver oxygen
and energy and “unload” the volume- overloaded R.V ,
increasing the likelihood of returning a perfusing rhythm
after shock.
Performing CPR while a defibrillator is readied for use is
strongly recommended for all patients in cardiac arrest
V.F / Pulse-less V.T
The shorter the time interval between the last chest compression and shock delivery, the more likely the shock will be successful.
A reduction of even a few seconds in the interval from pausing compressions to shock delivery can increase the probability of shock success
V.F / Pulse-less V.T
The value of intentionally delaying defibrillation to perform CPR is less clear.
At this time the benefit of delaying defibrillation to perform CPR before defibrillation is unclear
Shock ?
Monophasic 360 J / at beginning
Biphasic 120 J / then 200 J
Children first 2 J/kg then 4 J/kg
CHESTCOMp
Drug Therapy in V.F / Pulse-less V.T
When VF/pulseless VT persists after at least 1 shock and a
2-minute CPR period, a vasopressor can be given with the
primary goal of increasing myocardial blood flow during
CPR and achieving ROSC.
If a shock fails to generate a perfusing rhythm, then giving
a vasopressor soon after the shock will optimize the
potential impact of increased myocardial blood flow before the next shock.
Drug Therapy in V.F / Pulse-less V.T Amiodarone is the first-line antiarrhythmic agent given
during cardiac arrest because it has been clinically demonstrated to improve the rate of ROSC and hospital admission in adults with refractory VF/pulseless VT.
Amiodarone considered when VF/VT is unresponsive to CPR, defibrillation, and vasopressor therapy .
If amiodarone is unavailable, lidocaine may be considered.
Magnesium sulfate should be considered only for torsades de point.
As A Rule :
All drugs in CPR are given I.V Push.and then 20 cc N.S.
During cardiac arrest, provision of high-quality CPR and
rapid defibrillation are of primary importance
and
drug administration is of secondary importance.
After beginning CPR and attempting defibrillation for
identified VF or pulseless VT, providers can establish
IV or IO access.
This should be performed without interrupting chest compressions.
If IV or IO access cannot be established, epinephrine,
vasopressin, and lidocaine may be administered by the
endotracheal route during cardiac arrest .
The optimal endotracheal dose of most drugs is unknown, but typically the dose is 2 to 21⁄2 times of the recommended IV dose.
Do not check pulse untilThe rhythm changed
CHESTCOMp
DrugsAntiarrhythmic:
Amiodarone : 300 mg first doseif needed after 15-20 min, 150 mg
max, 450 mg
Lidocaine : 1.5 mg/kg first doseif needed Q 10 min--- 0.75 mg/kgfor 2 doses max. 3 mg/kg
Vasopressors
Epinephrine hydrochloride: S & NS rhythms1 mg- IV, IO, ET
Q 3-5 min/ cont to END
Atropine: Forget about it …!
Drug rout
As a law:Drugs injections in CPR must be:
PUSHETT administration:
2 - 2.5 times as IV dosesplus
5-10 ml distilled water
As a law:Drugs injections in CPR must be:
PUSHETT administration:
2 - 2.5 times as IV dosesplus
5-10 ml distilled water
CHESTCOMp
Prolonged CPRProlonged CPR
HypothermiaToxicity
Drowning
CHESTCOMp
CHESTCOMp
Post Cardiac Arrest Care
Post–cardiac arrest care has significant potential to reduce early mortality caused by hemodynamic instability and later morbidity and mortality from multiorgan failure and brain injury.
Subsequent objectives of post– cardiac arrest care are :
● Control body temperature to optimize survival and
neurological recovery
● Identify and treat acute coronary syndromes (ACS)
● Optimize mechanical ventilation to minimize lung injury
● Reduce the risk of multi-organ injury and support organ
function if required
● Objectively assess prognosis for recovery
●Assist survivors with rehabilitation services when
required
1- Ventilation
2- Hemodynamics
3- Cardiovascular
4- Neurological
5- Metabolic
Multi System Approach to Post Cardiac Arrest Care