Did you know that the survival rate of those who suffer a sudden cardiac arrest (SCA) is less than 15% according to statistics and that about 50% of the cardiovascular deaths are due to a SCA and another 75% of the latter can be linked to a previous heart attack. However SCA and heart attack are not the same and it is important to understand the difference between the two. Dr Anupam Goel Principal Consultant Max Super Specialty Hospital Saket New Delhi explains While a heart attack is a circulation problem SCA is referred to as an electrical problem. A