•Ventricular tachycardia/ ventricular
fibrillation.
•Asystole/ventricular standstill.
•Bradyarrythmia/Atrioventricular
block.
• Electro-mechanical dissociation : Absent Cardiac output
despite continuing ECG evidence of
electrical activity.
Majority
success if pts. are revived within 5 minutes .Long term
success
is rare if resuscitation is delayed more than 15 minutes.
