Related Experiment Video
Updated: Jun 28, 2025
09:17
High-Resolution Endocardial and Epicardial Optical Mapping in a Sheep Model of Stretch-Induced Atrial Fibrillation
Published on: July 29, 2011
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Malignant Purkinje Ectopy Induced by Atrial Fibrillation
Karim Benali1, Cinzia Monaco2, Josselin Duchateau3
1Cardiac Arrhythmia Department, Saint-Etienne University Hospital, Jean Monnet University, Saint-Etienne, France; IHU LIRYC, Electrophysiology and Heart Modeling Institute, Bordeaux, France; Cardiac Arrhythmia Department, Bordeaux University Hospital, INSERM, Bordeaux, France.
JACC. Clinical Electrophysiology
|April 13, 2024
Abstract
No abstract available in PubMed .
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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.
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Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
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Arrhythmias are disturbances in the heart's rhythm that lead to abnormal heartbeats. These irregularities can originate from different parts of the heart and are classified based on their origin and nature.
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