Passionate about Healthcare? Join our team and help us shape a healthier tomorrow!

Health Library

Atrial Fibrillation

Atrial Fibrillation

Summary

An arrhythmia is a problem with the speed or rhythm of the heartbeat. Atrial fibrillation (AF) is the most common type of arrhythmia. The cause is a disorder in the heart’s electrical system.

Often, people who have AF may not even feel symptoms. But you may feel
:

  • Palpitations — an abnormal rapid heartbeat
  • Shortness of breath
  • Weakness or difficulty exercising
  • Chest pain
  • Dizziness or fainting
  • Fatigue
  • Confusion

AF can lead to an increased risk of stroke. In many patients, it can also cause chest pain, heart attack, or heart failure.

Doctors diagnose AF using family and medical history, a physical exam, and a test called an electrocardiogram (EKG), which looks at the electrical waves your heart makes. Treatments include medicines and procedures to restore normal rhythm.

NIH: National Heart, Lung, and Blood Institute

National Heart, Lung, and Blood Institute

Find an Expert

Treatments and Therapies

Patient Handouts

Related Issues

Encyclopedia

Clinical Trials

Genetics

Diagnosis and Tests

Reference Desk

Journal Articles

Specifics

  • Tachycardia Mayo Foundation for Medical Education and Research

Start Here