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Related Concept Videos

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
Disturbances in Heart Rhythm01:29

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 heart...

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Related Experiment Video

Updated: Jul 15, 2026

Sterile Pericarditis in Aachener Minipigs As a Model for Atrial Myopathy and Atrial Fibrillation
08:56

Sterile Pericarditis in Aachener Minipigs As a Model for Atrial Myopathy and Atrial Fibrillation

Published on: September 24, 2021

Atrial fibrillation in ten cows.

P Brightling, H G Townsend

    The Canadian Veterinary Journal = La Revue Veterinaire Canadienne
    |November 1, 1983
    PubMed
    Summary

    Atrial fibrillation, an irregular heart rhythm, was diagnosed in ten cows. This cardiac condition was linked to heart disease or abdominal issues, with some cows recovering after treating the underlying cause.

    Area of Science:

    • Veterinary Cardiology
    • Bovine Medicine

    Background:

    • Atrial fibrillation is an irregular heart rhythm that can affect various animal species.
    • Understanding the causes and outcomes of atrial fibrillation in cattle is crucial for herd health management.

    Purpose of the Study:

    • To investigate the prevalence and underlying causes of atrial fibrillation in adult cows.
    • To characterize the association between atrial fibrillation and specific cardiac or abdominal diseases in cattle.

    Main Methods:

    • Cardiac auscultation was performed on adult cows to identify irregular heart rhythms.
    • Electrocardiography was used to confirm the diagnosis of atrial fibrillation.
    • Animals were assessed for primary cardiac disease (valvular endocarditis) and secondary abdominal disorders (gastrointestinal issues, uterine torsion).

    More Related Videos

    High-Resolution Endocardial and Epicardial Optical Mapping in a Sheep Model of Stretch-Induced Atrial Fibrillation
    09:17

    High-Resolution Endocardial and Epicardial Optical Mapping in a Sheep Model of Stretch-Induced Atrial Fibrillation

    Published on: July 29, 2011

    Related Experiment Videos

    Last Updated: Jul 15, 2026

    Sterile Pericarditis in Aachener Minipigs As a Model for Atrial Myopathy and Atrial Fibrillation
    08:56

    Sterile Pericarditis in Aachener Minipigs As a Model for Atrial Myopathy and Atrial Fibrillation

    Published on: September 24, 2021

    High-Resolution Endocardial and Epicardial Optical Mapping in a Sheep Model of Stretch-Induced Atrial Fibrillation
    09:17

    High-Resolution Endocardial and Epicardial Optical Mapping in a Sheep Model of Stretch-Induced Atrial Fibrillation

    Published on: July 29, 2011

    Main Results:

    • Atrial fibrillation was identified in ten adult cows.
    • Two cows had primary atrial fibrillation associated with valvular endocarditis.
    • Seven cows exhibited secondary atrial fibrillation linked to gastrointestinal disorders (six) or uterine torsion (one).
    • Six cows converted to normal sinus rhythm after treatment of the primary underlying disease.

    Conclusions:

    • Atrial fibrillation in adult cows can stem from primary heart disease or secondary abdominal conditions.
    • Addressing the primary disease, particularly abdominal disorders, can lead to resolution of atrial fibrillation in some cases.
    • This highlights the importance of a thorough diagnostic approach for arrhythmias in cattle.