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  1. 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 …

  2. Atrial fibrillation - Diagnosis and treatment - Mayo Clinic

    Atrial fibrillation (AFib) may be diagnosed when a health checkup is done for another reason. To diagnose AFib, the healthcare professional examines you and listens to your heart.

  3. Atrial fibrillation care at Mayo Clinic

    Jan 14, 2026 · Mayo Clinic staff in the Heart Rhythm Clinic has extensive experience and expertise in diagnosing and treating people with atrial fibrillation and other heart rhythm disorders.

  4. Atrial flutter - Symptoms and causes - Mayo Clinic

    Aug 29, 2024 · A person can have both atrial flutter and AFib. Atrial flutter may not cause symptoms. But some people may have a pounding, rapid heartbeat and chest pain. Fainting or …

  5. Atrial fibrillation ablation - Mayo Clinic

    Apr 9, 2024 · Learn how heat or cold energy can treat an irregular heartbeat called atrial fibrillation (AFib).

  6. Atrial septal defect (ASD) - Symptoms and causes - Mayo Clinic

    Jan 23, 2024 · An atrial septal defect (ASD) is a hole between the heart's upper chambers. The heart problem is present at birth. It is a type of congenital heart defect.

  7. Mayo Clinic Q & A: Why a fluttering heart could lead to stroke

    May 29, 2025 · Atrial fibrillation is a common type of heart rhythm disorder where the heart doesn't beat efficiently. This makes the heart unable to pump enough blood out to the body with each …

  8. Afibs -and- Left Atrial Enlargement - Mayo Clinic Connect

    Jun 11, 2025 · It also works the other way around: AF can lead to atrial enlargement, and at the same time collagen deposits, and fibrosis, and those can cause mitral valve prolapse.

  9. Atrial tachycardia - Symptoms and causes - Mayo Clinic

    Overview Atrial tachycardia is an irregular heartbeat, called an arrhythmia. It's a type of supraventricular tachycardia. During an atrial tachycardia episode, the heart beats more than …

  10. Mayo Clinic offers new innovative therapy to treat atrial fibrillation

    Jul 30, 2024 · The therapy, called pulsed field ablation (PFA), has received Food and Drug Administration (FDA) approval and represents a significant milestone in treating atrial …