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| Cardiac arrest |
Cardiac arrest
Definition:-An abrupt loss of cardiac pump function which may b reversible by a prompt intervention, but will lead 2 death in its absence.
Cardiac arrest may result 4m 1 of 4 mechanisms-
1)Ventricular fibrillation
2)Pulseless ventricular tachycardia
3)Ventricular asystole
4)Pulseless electrical activity
**Causes**
§Ventricular fibrillation-myocardial ischaemia or infarction
-Electrocution
-Hypokalaemia & hyperkalaemia
-Drugs
§Ventricular asystole
-Localised failure of conducting tissue
-Massive myocardial infarction
§Pulseless electrical activity
-Cardiac rupture
-Massive pulmo embolism
**Management**
Cardiopulmonary resuscitation (CPR):-Provides artificial ventilation & perfusion 2 vital organs i.e heart & brain until spontaneous cardiopulm function is restored
It encompasses both basic life support & advanced life support
1)Basic life support
indicates manoeuvres which, widout special equipment either prevent circulatory & respi arrest or externally support circulation & venti of victim in arrest
i)Airway
ii)Breathing
iii)Circulation
iv)Defibrillation
2)Advanced life support
Consists of basic life support & use of special equipment & drugs for establishing & maintaining effective venti & circu
i)Advanced airway
ii)Advanced breathing
iii)Advanced circulation
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