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What causes paroxysmal atrial fibrillation?

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Doctors don't always know what causes paroxysmal atrial fibrillation. It often happens because your heart has been damaged by things like coronary heart disease or high blood pressure. If that damage affects the part of your heart that sends the electrical pulses that control your heartbeat, those pulses can come too fast or at the wrong time.

SOURCES:

American Heart Association.

National Heart, Lung and Blood Institute: "What Is Atrial Fibrillation?"

American Family Physician: "Diagnosis and Treatment of Atrial Fibrillation."

American College of Cardiology/American Heart Association: "Management of Patients with Atrial Fibrillation."

Heart Rhythm Society: "Atrial Fibrillation."

American Family Physician: "Catheter Ablation of Supraventricular Arrhythmias and Atrial Fibrillation."

Reviewed by James Beckerman on May 2, 2018

SOURCES:

American Heart Association.

National Heart, Lung and Blood Institute: "What Is Atrial Fibrillation?"

American Family Physician: "Diagnosis and Treatment of Atrial Fibrillation."

American College of Cardiology/American Heart Association: "Management of Patients with Atrial Fibrillation."

Heart Rhythm Society: "Atrial Fibrillation."

American Family Physician: "Catheter Ablation of Supraventricular Arrhythmias and Atrial Fibrillation."

Reviewed by James Beckerman on May 2, 2018

NEXT QUESTION:

What can increase my risk of getting paroxysmal atrial fibrillation?

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