Cardiac Arrest Arrhythmias

Posted by e-Medical PPT Saturday, August 25, 2012
Cardiac Arrest
Ventricular Fibrillation
Pulseless Ventricular Tachycardia
Pulseless Electrical Activity (PEA):A condition; Not an ECG rhythm

Most common rhythms
Adults: ventricular fibrillation
Children: Asystole, Bradycardic PEA
Pediatric V-fib suggests:
 Drug toxicity
 Electrolyte imbalance
 Congenital heart disease

Cardiac Arrest
ABCs come first!
  Airway - unobstructed? --->manually open
  Breathing - no or inadequate --->ventilate
  Circulation - no pulse in 5 sec --->chest compressions
Do NOT wait on equipment
Assure effective BLS before going to ALS
  Rise and fall of chest
  Air movement in lung fields
  Pulse with compressions

Analyze the Rhythm
Ventricular Fibrillation (VF)
 Chaotic, irregular, ventricular rhythm
 Wide, variable, bizarre complexes
 Fast rate of activity
 Multiple ventricular foci
 No cardiac output
 Terminal rhythm if not corrected quickly
 Most common rhythm causing sudden cardiac death in adults

The ultimate unstable bradycardia
A terminal rhythm
poor prognosis for resuscitation
best hope if ID & treat cause
No significant positive or negative deflections
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