Hospital deaths in cinema are usually depicted by the use—or as some might say, overuse— of an electrocardiogram monitor signalling a flat line (technically called the asystole). All hope is lost, the character is dead, everyone’s a mess, and the situation is irredeemable— or is it? Enter the miracle that is CPR (Cardiopulmonary Resuscitation) or defibrillation.
Source: It’s a medical miracle, favourite twist in tamil movies- The New Indian Express