in the peri-arrest period may need treatment to preventdeterioration to cardiac arrest or to
regain haemodynamic stability aftersuccessful resuscitation.•The choice of treatment depends on the
nature of the arrhythmia and the condition of the patient (adverse signs)
•Conscious patients must beanaesthetised or well sedated beforesubjecting the pt to Synchronised
vagal manoeuvres that cause sudden bradycardia may triggerventricular fibrillation in the context of
acute ischaemia or digitalis toxicity.