2. Atrial Fibrillation and Flutter
Atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles, or lower chambers of the heart. In atrial fibrillation, the atria "quiver"...
Healthline.com (OMS Preferred Provider)

3. Atrial Fibrillation
Treating atrial fibrillation is important for several reasons. An irregular, rapidly beating heart can weaken the heart muscle and cause it to dilate or stretch out. This can increase your risk of developing heart failure or having chest pain or e...
Healthline.com (OMS Preferred Provider)

4. Atrial Fibrillation: MedlinePlus
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.
MedlinePlus (Offsite)

5. What is Atrial Fibrillation?
The heart pumps blood to the rest of the body. During each heart beat, the two upper chambers of the heart (atria) contract, followed by the two lower chambers (ventricles). These actions, when timed perfectly, allow for an efficient pump. The tim...
my.clevelandclinic.org

6. Atrial Fibrillation
The normal heart beats in the same constant rhythm, about 60 to 100 times per minute at rest. During each heart beat, the two upper chambers of the heart (atria) contract, followed by the two lower chambers (ventricles). This action is directed by...
www.metrohealth.org

7. Atrial Fibrillation
Radiofrequency Ablation for Atrial Fibrillation: A Guide for Adults Radiofrequency Ablation for Atrial Fibrillation: A Guide for Adults
www.noah-health.org

8. Atrial Fibrillation
Atrial fibrillation is a type of cardiac arrhythmia (abnormality of heart rate and/or rhythm). Atrial fibrillation produces a rapid and irregular heartbeat, during which the atria (the upper two chambers of the heart that receive...
www.hopkinsmedicine.org

9. Atrial Fibrillation
Atrial fibrillation is the fast and chaotic beating of the atrial chambers or irregular heartbeart, which mainly affects older people. The risk of developing atrial fibrillation increases past the age of 60,...
healthinsite.gov.au

10. Atrial Fibrillation
Atrial fibrillation occurs when electrical impulses in the upper chambers of the heart (atria) begin in multiple sites in a chaotic pattern and are sent rapidly to the heart's lower chambers, causing them to contract irregularly and quickly. The f...
www.cedars-sinai.edu