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Last updated on April 17, 2025 11:54 AM
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Major Terms/Definitions in ISFR
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Aspect | Sudden Cardiac Arrest | Heart Attack |
Definition | A condition where the heart stops beating due to irregular heart rhythms (arrhythmia). | A condition caused by blockages or clotting in arteries that restrict blood flow to the heart. |
Cause | A malfunction of heart’s electrical system leads to ventricular fibrillation. | Plaque buildup or clot formation in coronary arteries. |
Impact on the Heart | The heart cannot pump oxygenated blood; blood flow to brain is poor. | Damage to heart muscle due to restricted blood supply. |
Time to React | Immediate action, such as CPR within 2 minutes is required to increase survival chances. | It can be identified with ECG changes and treated if admitted in time. |
Symptoms | Sudden fainting, loss of consciousness, no warning. | Persistent discomfort in chest, jaw, neck; shortness of breath; weakness. |
Fatal Timeframe | Fatal within 8 minutes without intervention; brain damage in 5 minutes. | Survival rate exceeds 90% if treated promptly. |
Prevalence | Happens in asymptomatic individuals or those with a history of arrhythmias or structural heart issues. | Commonly linked to coronary artery disease with visible symptoms. |
Read More > Circulatory System.