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Atrial fibrillation - Symptoms and causes - Mayo Clinic
Oct 3, 2025 · 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 …
Atrial Fibrillation (AFib): Causes, Symptoms, and Treatment
Nov 15, 2023 · What Is Atrial Fibrillation? Atrial fibrillation, also called AF or AFib, is a quivery, fluttery heartbeat. You might also hear the doctor call it arrhythmia. It means your heart’s …
What is Atrial Fibrillation? - American Heart Association
Mar 26, 2025 · Atrial fibrillation is an irregular heartbeat, or arrhythmia. Atrial fibrillation, also known as AFib or AF, can lead to blood clots, stroke, heart failure and other heart-related …
A-Fib (Atrial Fibrillation) - What You Need to Know - Drugs.com
Nov 10, 2025 · Care guide for A-Fib (Atrial Fibrillation). Includes: possible causes, signs and symptoms, standard treatment options and means of care and support.
What Is Atrial Fibrillation? - NHLBI, NIH
Nov 30, 2022 · Atrial fibrillation, also known as A-fib or AF, is one of the most common types of arrhythmias (irregular heart rhythms). Atrial fibrillation causes your heart to beat irregularly and …
Atrial Fibrillation (A-Fib): Symptoms & Risk Factors ...
Atrial fibrillation (A-fib) is a type of arrhythmia (abnormal heartbeat) that affects almost five million Americans. It often originates in the left atrium (the upper left chamber of the heart). When …
What doctors wish patients knew about atrial fibrillation
Feb 28, 2025 · Atrial fibrillation (AFib) causes your heart to beat faster than it should. Paari Dominic, MBBS, MPH, of University of Iowa Health Care, shares more.
Understanding atrial fibrillation and its symptoms - UCLA Health
Dec 6, 2024 · When someone has atrial fibrillation, it means the two upper chambers of the heart have ceased to function properly. It occurs due to a malfunction in a cluster of cells in the right …
How to Stop an AFib Episode - WebMD
Jan 9, 2025 · There are types of AFib, some can come and go on their own while others require treatment with medications or procedures. You may be able to take some steps to help ease …