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Disturbances in Heart Rhythm

Disturbances in Heart Rhythm

Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...

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Related Experiment Video

Updated: Jun 17, 2025

Closure of a Patent Foramen Ovale PFO: An Intervention Sequence

Closure of a Patent Foramen Ovale PFO: An Intervention Sequence

Published on: December 23, 2022

Atrial Fibrillation After Patent Foramen Ovale Closure: Innocuous Passerby or Propagating Substrate

Keshav R Nayak¹, Matthew J Daniels²

¹Department of Cardiology, Scripps Mercy, San Diego, California.

Journal of the Society for Cardiovascular Angiography & Interventions

|August 12, 2024

Summary

No abstract available in PubMed .

Keywords:

atrial fibrillation patent foramen ovale closure patent foramen ovale closure devices

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