Document Detail

Third degree atrioventricular block and sudden death secondary to acute myocarditis in a dog.
MedLine Citation:
PMID:  17689470     Owner:  NLM     Status:  MEDLINE    
Third degree atrioventricular (AV) block in dogs is thought to be most frequently characterized by non-specific fibrotic changes in the AV node. However, it may occur secondary to an undiagnosed inflammatory process. We report a case of third degree AV block in a dog, secondary to acute lymphocytic-plasmacytic myocarditis that resulted in sudden death. This dog had cardiac troponin I levels of 44.65 ng/mL (normal <0.11 ng/mL). The serum cardiac troponin I level was five times higher than any other AV block patient measured in our laboratory, and was also substantially higher than in dogs with chronic valve disease or dilated cardiomyopathy. The severe myocardial necrosis observed at necropsy correlated with the degree of cardiac troponin I elevation. This report suggests that measurement of cardiac troponin I may be an indicated test before pacemaker implantation in dogs with third degree AV block.
Whitney M Church; D David Sisson; Mark A Oyama; James F Zachary
Publication Detail:
Type:  Case Reports; Journal Article     Date:  2006-10-16
Journal Detail:
Title:  Journal of veterinary cardiology : the official journal of the European Society of Veterinary Cardiology     Volume:  9     ISSN:  1875-0834     ISO Abbreviation:  J Vet Cardiol     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-08-10     Completed Date:  2007-09-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101163270     Medline TA:  J Vet Cardiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  53-7     Citation Subset:  IM    
Department of Veterinary Clinical Medicine, Matthew J. Ryan Veterinary Hospital, Philadelphia, PA 19104, USA. <>
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MeSH Terms
Acute Disease
Death, Sudden, Cardiac / etiology,  prevention & control,  veterinary*
Diagnosis, Differential
Electrocardiography / veterinary
Fatal Outcome
Heart Block / etiology,  prevention & control,  veterinary*
Myocarditis / complications,  veterinary*
Pacemaker, Artificial / veterinary
Troponin I / metabolism*
Reg. No./Substance:
0/Troponin I

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

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