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Atrial Fibrillation Causes

Many conditions can cause disorganized electrical activity in the atria to develop. In many cases, a "leaky" or a sticky (stenotic) mitral valve can result in an enlarged (dilated) atria.

Patients with a history of high blood pressure (hypertension), can develop atrial fibrillation because high blood pressure eventually begins to affect the atria.

Blockages in the arteries that supply the heart with blood (coronary arteries), heart attacks, and an overact...Read the full article