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Heart-to-heart: Talking to your doctor.Heart attack symptoms, risk, and recovery.en/health-topics/high-blood-pressure/the-facts-about-high-blood-pressure/all-about-heart-rate-pulse

You can learn more about how we ensure our content is accurate and current by reading our editorial policy. Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. The heart tissue not affected by the oxygen loss may get bigger over time, and the heart may change shape. Since the heart muscle cannot easily regenerate itself, the heart heals after an attack by forming scar tissue.

the size of the area the blockage affects.

The following can affect how much damage your heart will take during an attack: As the oxygen depletion continues, this damage continues. This lack of oxygen leads to the breakdown of the heart muscle at the cellular level. This reduction in blood flow can start causing damage to heart muscles within minutes. Or, the cardiac demand (the amount of oxygen the heart needs) is higher than the cardiac supply (the amount of oxygen the heart has) available.īlockages and artery spasms can both restrict blood flow to the heart. This can be because one or more arteries are unable to deliver a sufficient flow of blood to the heart muscles. What happens to the heart during a heart attack?ĭuring a heart attack, your heart muscles receive less blood. However, having a fast heart rate is not always a sign or symptom of a heart attack, according to the American Heart Association.

For example, a study found that people with a heart rate above 80 beats per minute at the time of treatment had a higher risk of dying from their heart attack. Your heart rate at the time of treatment can be an indicator of how well you will recover from an attack. In general, the lower your heart rate, the more efficiently your heart is pumping. A typical or “healthy” resting heart rate for an adult is between 60 and 100 beats per minute. Your heart rate is the number of times your heart beats per minute. In addition, if you are taking medications that slow your heart rate, such as beta-blockers, your heart rate may remain at this lower pace during a heart attack.īy contrast, if you have tachycardia, which is when your heart beats abnormally fast, your heart rate may stay high during an attack. Your heart rate may change during a heart attack, although it may also not change at all.Ĭertain types of right coronary artery infarctions can affect the electrical systems of the heart and cause a slow heart rate during an attack. What happens to heart rate during a heart attack?