Document Detail


Investigation of heart rate variability in a dog with upper respiratory tract obstruction.
MedLine Citation:
PMID:  8587326     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
An eight-year-old bull mastiff presented with respiratory obstruction caused by a tumour dorsolateral to the larynx. Removal of the tumour was attempted but the dog died. A novel noninvasive measurement of heart rate variability and cardiac parasympathetic activity, recorded real-time from an electrocardiograph signal, was used to investigate cardiac rhythm in the dog. A simultaneous record of heart rate and cardiac parasympathetic activity showed severe sinus arrhythmia caused by the parasympathetic tone, in which the inspiratory heart rate exceeded 140 beats per minute (bpm) and the expiratory heart rate fell to below 60 bpm. The extent of respiratory modulation of the cardiac parasympathetic activity (vagal tone) has not been reported before using this technique on-line in a conscious, freely-behaving and spontaneously breathing animal. Non-invasive measurements of cardiac parasympathetic tone show great potential for the assessment of animals with systemic and cardiac disease including cardiac failure.
Authors:
C J Little; P O Julu
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  The Journal of small animal practice     Volume:  36     ISSN:  0022-4510     ISO Abbreviation:  J Small Anim Pract     Publication Date:  1995 Nov 
Date Detail:
Created Date:  1996-03-27     Completed Date:  1996-03-27     Revised Date:  2009-09-29    
Medline Journal Info:
Nlm Unique ID:  0165053     Medline TA:  J Small Anim Pract     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  502-6     Citation Subset:  IM    
Affiliation:
Department of Veterinary Medicine, Glasgow University Veterinary School, Bearsden.
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MeSH Terms
Descriptor/Qualifier:
Airway Obstruction / etiology,  physiopathology,  veterinary*
Animals
Carcinoma / complications,  pathology,  veterinary*
Dog Diseases / diagnosis,  etiology,  physiopathology*
Dogs
Electrocardiography / veterinary
Female
Heart / innervation
Heart Rate / physiology*
Laryngeal Neoplasms / complications,  pathology,  veterinary*
Parasympathetic Nervous System / physiopathology
Grant Support
ID/Acronym/Agency:
//Wellcome Trust

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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