Heart attack - Symptoms & causes - Mayo Clinic
2023年10月9日 · A heart attack occurs when the flow of blood to the heart is severely reduced or blocked. The blockage is usually due to a buildup of fat, cholesterol and other substances in the heart (coronary) arteries.
Heart Attack: Causes, Symptoms, and Treatment - WebMD
2023年9月21日 · What Is a Heart Attack? A heart attack happens when something blocks the blood flow to your heart so it can’t get the oxygen it needs. It’s a medical emergency. Call 911 right away at the...
Heart Attack - American Heart Association
What is a heart attack, also called a myocardial infarction? What is coronary heart disease and coronary artery disease? The American Heart Association explains the Warning Signs of Heart Attack, Risk of Heart Attack, Symptoms of Heart Attack, Treatment of Heart Attack, diagnosis of heart attack, heart attack resources, heart attack tools ...
Heart Attack: Symptoms, Causes, Diagnosis, Prevention, More
2022年2月15日 · Heart attacks — also called myocardial infarctions — are very common in the United States. In fact, one happens every 40 seconds, according to the Centers for Disease Control and Prevention...
What is a Heart Attack? - American Heart Association
2024年12月10日 · A heart attack is when blood flow to the heart is blocked. It’s a circulation problem. With sudden cardiac arrest, the heart malfunctions and suddenly stops beating.