Angina is chest pain or discomfort caused by reduced blood flow to the heart muscle, but it does not permanently damage the heart. A heart attack occurs when blood flow is blocked for long enough to cause heart muscle damage. While angina often improves with rest or medication, a heart attack requires immediate emergency treatment.
A heart attack occurs when a blocked coronary artery prevents oxygen-rich blood from reaching part of the heart muscle. Cardiac arrest happens when the heart suddenly stops beating effectively due to an electrical problem. A heart attack can sometimes lead to cardiac arrest, but they are different medical emergencies that require immediate treatment.
Yes. Some people experience a "silent" heart attack with little or no chest pain. Instead, they may develop symptoms such as unusual fatigue, shortness of breath, nausea, dizziness or discomfort in the jaw, back or arms. Silent heart attacks are more common in older adults, women and people with diabetes, and still require prompt medical attention.
Recovery varies depending on the severity of the heart attack and the treatment received. Many patients can gradually resume everyday activities within a few weeks, while returning to work, driving or more strenuous exercise may take longer. Your cardiologist will advise when it is safe to resume specific activities based on your recovery and heart function.
Many people recover well after a heart attack, particularly when treatment is received promptly and heart muscle damage is limited. Recovery typically involves medications, cardiac rehabilitation, lifestyle modifications and regular follow-up with a cardiologist to reduce the risk of future heart problems.
Not always. The amount of permanent damage depends on how long the heart muscle was deprived of blood and how quickly treatment was started. Early treatment can limit heart muscle damage, and many patients are able to regain good heart function with appropriate treatment, rehabilitation and long-term cardiac care.
