Understanding Sudden Cardiac Arrest Sudden Cardiac Arrest (SCA) is a life-threatening emergency that occurs when the heart suddenly stops beating effectively. This condition prevents blood from circulating to vital organs, including the brain, and can lead to death within minutes if not treated promptly. Causes of Sudden Cardiac Arrest SCA can be caused by various underlying conditions, including: Coronary artery disease – Blocked arteries reduce blood flow to the heart muscle. Arrhythmias – Irregular heartbeats can disrupt the heart's ability to pump blood. Heart attack – A heart attack can trigger electrical disturbances in the heart. Congenital heart defects – Inherited conditions may contribute to SCA. Electrocution, drowning, or trauma – External factors can cause cardiac arrest. Recognizing the Signs of Sudden Cardiac Arrest Recognizing SCA quickly is crucial for effective first aid. The key signs include: Sudden collapse No breathing or only gasping No pulse Unrespons...