From cell to cageside: autonomic influences on cardiac rhythms in the dog

The autonomic nervous system is pivotal in the characteristics of normal and abnormal cardiac rhythms. Some of the unique features (pronounced sinus arrhythmia and wandering pacemaker) of the canine electrocardiogram can be explained by the influence of parasympathetic tone. Perturbations that enhan...

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Bibliographic Details
Published in:Journal of small animal practice 1998-10, Vol.39 (10), p.460-468
Main Author: MoïSE, N. S.
Format: Article
Language:English
Subjects:
Animals
Arrhythmia, Sinus - physiopathology
Arrhythmia, Sinus - veterinary
Autonomic Nervous System - physiology
Autonomic Nervous System - physiopathology
Death, Sudden, Cardiac - veterinary
Dog Diseases - physiopathology
Dogs
Electrocardiography - veterinary
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Summary:The autonomic nervous system is pivotal in the characteristics of normal and abnormal cardiac rhythms. Some of the unique features (pronounced sinus arrhythmia and wandering pacemaker) of the canine electrocardiogram can be explained by the influence of parasympathetic tone. Perturbations that enhance the sympathetic nervous system can also potentiate arrhythmias, or counteract antiarrhythmic action. Moreover, disorders of the innervation to the heart may actually cause some life‐threatening arrhythmias. This article reviews the interactions of the autonomic nervous system and cardiac rhythms as they pertain to the normal dog, as well as to specific arrhythmias in the boxer and German shepherd dog. Emphasis is placed on relating information from electrophysiological investigations to the clinical arena, thus demonstrating the value of linking the basic and clinical sciences as one medicine: knowledge from cell to cageside.
ISSN:0022-4510
1748-5827
DOI:10.1111/j.1748-5827.1998.tb03680.x