Mar 11, 2022 · Overview Heart palpitations (pal-pih-TAY-shuns) are feelings of having a fast-beating, fluttering or pounding heart. Stress, exercise, medication or, rarely, a medical condition can trigger …

Aug 29, 2024 · A person can have both atrial flutter and AFib. Atrial flutter may not cause symptoms. But some people may have a pounding, rapid heartbeat and chest pain. Fainting or almost fainting also …

Find possible causes of heart palpitations based on specific factors. Check one or more factors on this page that apply to your symptom.

Oct 13, 2023 · If you feel like your heart is beating too fast or too slow, or it's skipping a beat, make an appointment for a health checkup. You may be told to see a doctor trained in heart diseases, called a …

Mar 11, 2022 · Know when and how feelings of a rapid, fluttering or pounding heartbeat are treated.

May 29, 2025 · Learn why a fluttering heart may lead to a stroke. Hear from a Mayo Clinic expert about atrial fibrillation.

This type of fast heartbeat may occur after heart surgery or during pregnancy. But infections may trigger it too. Learn how it's diagnosed and treated.

Mar 7, 2024 · SVT is a heart rhythm disorder that causes a very fast or erratic heartbeat. The heart may beat more than 150 times a minute. Know the symptoms and when it's treated.

Feb 18, 2025 · The syncope that most concerns healthcare professionals is cardiac syncope, blacking out due to an underlying heart disease such as a heart rhythm abnormality, or arrhythmia, he explains.

Oct 5, 2024 · In AVNRT, the heart can beat between 120 to 280 times a minute. The fast heartbeat usually starts suddenly. AVNRT does not always cause symptoms. When symptoms do show up, …