India, Nov. 23 -- Sudden cardiac arrest (SCA) is one of the most urgent and life-threatening medical emergencies. It occurs when the heart suddenly and unexpectedly stops beating, cutting off blood flow to the brain and vital organs. Unlike a heart attack - where blood supply is blocked but the heart continues to beat - SCA strikes without warning and can lead to collapse within seconds. According to the IOSR Journal of Nursing and Health Science (India), chances of survival decrease by 7%-10% with every passing minute. Immediate response is critical. If a bystander administers cardiopulmonary resuscitation (CPR) and uses an automated external defibrillator (AED) promptly, it can double or even triple the person's chances of survival. However, in India, CPR awareness and training remain limited, and defibrillators are still not widely available in public spaces - leaving many patients without essential help in those crucial early minutes. "The biggest challenge with SCA is that it leaves very little time to react. Without CPR or defibrillation, survival is highly unlikely. This is why widespread CPR training and access to defibrillators in schools, workplaces, and public areas is vital. For patients already at risk, advanced therapies such as Implantable Cardioverter Defibrillators (ICDs) and Cardiac Resynchronisation Therapy (CRT) are life-saving and can prevent sudden cardiac deaths." For individuals with existing heart diseases or those who experience a sudden cardiac arrest, immediate treatment is essential. The most effective intervention for SCA is defibrillation, which delivers an electric shock to restore a normal heartbeat. An ICD is a small device placed under the skin that continuously monitors heart rhythm. If the heart beats too fast or irregularly, the ICD first sends small, painless signals to correct the rhythm. If that fails, it delivers a stronger shock to restore normal heartbeat - effectively saving the person's life. Another advanced therapy is CRT, which combines a biventricular pacemaker with an ICD. By placing leads in both ventricles and the right atrium, CRT helps synchronise the heart's pumping action in patients with heart failure. This therapy improves heart function, reduces symptoms, and when paired with an ICD, significantly lowers the risk of sudden cardiac death. SCA can affect anyone - including young and seemingly healthy individuals - but the risk is higher in those with coronary artery disease, heart failure, or arrhythmias. Warning signs may include palpitations, chest discomfort, dizziness, or breathlessness, though in many cases there are no symptoms at all. This unpredictability makes awareness, training, and timely prevention all the more crucial....