Atrial fibrillation - Symptoms and causes - Mayo Clinic
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 …
What is atrial fibrillation and how is it treated?
4 days ago · Atrial fibrillation, or A-fib, is becoming more common, but doctors say treatments are improving. The condition is a quivering or irregular heartbeat that can lead to blood clots, stroke and …
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 complications. AFib …
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 normal...
What is atrial fibrillation and how is it treated? – NBC Chicago
4 days ago · What is atrial fibrillation and how is it treated? A-fib occurs when the heart’s upper chambers, called the atria, beat out of sync with the lower chambers, the ventricles.
Atrial Fibrillation - 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 …
A-Fib (Atrial Fibrillation) - What You Need to Know - Drugs.com
Feb 4, 2026 · Care guide for A-Fib (Atrial Fibrillation). Includes: possible causes, signs and symptoms, standard treatment options and means of care and support.
What Is Afib? - Johns Hopkins Medicine
Afib stands for atrial fibrillation (AF), which is a type of arrhythmia, or abnormal heartbeat. Afib is caused by extremely fast and irregular beats from the upper chambers of the heart (usually more than 400 …
What Is Atrial Fibrillation (AFib or AF)? Symptoms and More
Jul 17, 2025 · Atrial fibrillation is the most common type of heart arrhythmia (irregular heartbeat) that can interrupt the normal flow of blood. This interruption means the condition puts you at risk of blood...
About Atrial Fibrillation | Heart Disease | CDC
May 14, 2024 · Atrial fibrillation, often called AFib or AF, is the most common type of treated heart arrhythmia. An arrhythmia is when the heart beats too slowly, too fast, or in an irregular way.