Document Detail

Third degree atrioventricular block and accelerated idioventricular rhythm associated with a heart base chemodectoma in a syncopal Rottweiler.
MedLine Citation:
PMID:  18045349     Owner:  NLM     Status:  MEDLINE    
A 7-year-old male intact Rottweiler was presented with a 1-week history of lethargy, anorexia, vomiting and multiple syncopal events. The results of the clinical examination and electrocardiography were consistent with a third degree atrioventricular block and an intermittent accelerated idioventricular rhythm. Haematology, serum biochemistry, serology for Borrelia burgdorferi, blood culture, total T4, thoracic radiography and echocardiography did not reveal the cause of the arrhythmia. Response to medical treatment with isoproterenol was poor. Pacemaker placement was declined by the owners and the dog was euthanized at their request. Histopathological examination of the heart revealed a chemodectoma at the base of the heart. There was no neoplastic infiltration of the conduction tissue. Potential mechanisms explaining the association of the arrhythmias and the tumour, such as vagal stimulation and neuroendocrine factors are discussed.
S Schuller; N Van Israël; R W Else
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Journal of veterinary medicine. A, Physiology, pathology, clinical medicine     Volume:  54     ISSN:  0931-184X     ISO Abbreviation:  J Vet Med A Physiol Pathol Clin Med     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-11-29     Completed Date:  2008-02-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100955112     Medline TA:  J Vet Med A Physiol Pathol Clin Med     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  618-23     Citation Subset:  IM    
Department of Small Animal Clinical Studies, Faculty of Veterinary Medicine, University of Liège, Boulevard de Colonster 20, Bât B 44, 4000 Liège, Belgium.
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MeSH Terms
Atrioventricular Block / etiology,  veterinary*
Dog Diseases / diagnosis*,  etiology
Euthanasia, Animal
Heart Neoplasms / complications,  veterinary*
Paraganglioma, Extra-Adrenal / complications,  veterinary*

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