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Sudden Cardiac Arrest (SCA): Understanding the Silent Threat
Sudden Cardiac Arrest (SCA) is a life-threatening condition where the heart unexpectedly stops beating. Unlike a heart attack, which is caused by a blockage in blood flow to the heart, SCA occurs due to an electrical malfunction in the heart, leading to an irregular heartbeat (arrhythmia). This can happen to anyone, even those without a prior history of heart disease, and can result in death within minutes if not treated immediately.
In the post-COVID era, the incidence of SCA has risen, particularly among younger individuals, making awareness and timely intervention more critical than ever.
Symptoms of Sudden Cardiac Arrest
SCA often occurs without warning. Key symptoms include:
- Sudden loss of consciousness
- No breathing or gasping for air
- No detectable pulse

Immediate Treatment is Critical
The first few minutes after SCA are crucial. The primary goal is to restore the heart’s normal rhythm as quickly as possible. This is typically achieved through:
Cardiopulmonary Resuscitation (CPR): To maintain blood flow to vital organs.
Automated External Defibrillator (AED): To deliver an electric shock to the heart and restore its normal rhythm.
In some cases, medications or advanced medical interventions may be required to stabilize the patient.
Prevention and Long-Term Care
Preventing SCA involves identifying risk factors, such as underlying heart conditions, and implementing preventive measures. Dr. [Doctor’s Name], a renowned cardiologist in Chennai, is deeply committed to raising awareness about SCA and its prevention. With years of expertise in cardiology, he has shared his knowledge through various NEWS channels (insert link) and collaborates with organizations like the International Rotary Club to educate communities on life-saving techniques like CPR.