Jan 14, 2026 · Atrial fibrillation (AFib) is an irregular and often very rapid heart rhythm. An irregular heart rhythm is called an arrhythmia. AFib can lead to blood clots in the heart. The condition also increases …

Atrial fibrillation (AFib) may be diagnosed when a health checkup is done for another reason. To diagnose AFib, the healthcare professional examines you and listens to your heart.

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 …

Jan 14, 2026 · Mayo Clinic staff in the Heart Rhythm Clinic has extensive experience and expertise in diagnosing and treating people with atrial fibrillation and other heart rhythm disorders.

Overview Atrial tachycardia is an irregular heartbeat, called an arrhythmia. It's a type of supraventricular tachycardia. During an atrial tachycardia episode, the heart beats more than 100 times a minute. …

Jan 23, 2024 · An atrial septal defect (ASD) is a hole between the heart's upper chambers. The heart problem is present at birth. It is a type of congenital heart defect.

May 29, 2025 · Atrial fibrillation is a common type of heart rhythm disorder where the heart doesn't beat efficiently. This makes the heart unable to pump enough blood out to the body with each heartbeat. …

Atrial fibrillation (AFib) is a heart rhythm disorder. In a typical heart, a group of cells called the sinus node sends electrical signals that start each heartbeat.

Nov 10, 2023 · Mayo Clinic electrophysiologist Christopher V. DeSimone, M.D., Ph.D., and cardiologist Kyle W. Klarich, M.D., review indications that an early rhythm-controlling approach for atrial …

Jan 13, 2025 · Often the arrhythmia, if that is what it is, will be a PAC, or a premature atrial complex. The atrium has extra beats when they follow a paused beat, and the result can be a substantial thump. …