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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 condition also increases …

  2. Atrial fibrillation - Diagnosis and treatment - Mayo Clinic

    Jan 14, 2026 · 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 almost fainting also …

  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 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 100 times a minute. …

  7. 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.

  8. Fibrilación auricular - Síntomas y causas - Mayo Clinic

    Jan 29, 2026 · La fibrilación auricular es un ritmo cardíaco irregular y, a menudo, muy rápido. Un ritmo cardíaco irregular se conoce como arritmia. La fibrilación auricular puede derivar en coágulos …

  9. 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.

  10. Atrial flutter - Diagnosis and treatment - Mayo Clinic

    Aug 29, 2024 · Living with atrial flutter? Connect with others like you for support and answers to your questions in the Heart Rhythm Conditions support group on Mayo Clinic Connect, a patient community.