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WHAT IS SUDDEN CARDIAC ARREST ? 

For a layman sudden cardiac arrest (SCA) is a sudden, unexpected failure of heart function occurring due to fast fluttering or sudden cessation of action of the ventricles, which does not allow enough blood to be pumped out to the organs, which include the brain and the heart itself.

Medically it is defined as non-traumatic, unexpected fatal event occurring within 1 hour of the onset of symptoms in an apparently healthy subject. If death is not witnessed; the definition applies when the victim was in good health 24 hours before the event.

TO SUMMARIZE: It is unexpected death of otherwise apparently healthy person within hours

THIS IS A MEDICAL EMERGENCY

The heart's electrical activity becomes disordered. When this happens, the heart's lower (pumping) chambers contract in a rapid, unsynchronized way- "fibrillate" rather than beat. The heart pumps little or no blood. Collapse and sudden cardiac arrest follows.

SCA is fatal if not treated immediately by prompt and appropriate emergency care which involves administration of cardiopulmonary resuscitation (CPR), shock treatment to the chest to reset the heart's rhythm (defibrillation) and advanced life support.

WHAT IS THE WINDOW PERIOD FOR REVIVAL ? 

Sudden cardiac arrest is reversible but the window period to revive is extremely short. Reviving a victim with sudden cardiac arrest is like snatching life from jaws of death. After a cardiac arrest there are four to six minutes before brain death occur. Chances of survival reduce by 7-10 % with every passing minute.

In India because of lack of awareness and immediate and adequate medical intervention at present more than 99% of Indians who experience sustained ventricular fibrillation face certain death.


TO SUM UP FOR  SUDDEN CARDIAC ARREST: ACT JUST NOW OR ELSE IT WOULD BE TOO LATE