Bradyarrhythmias and Pacemaker Therapy in Dogs with Chagas Disease

Background Chagas disease (Trypanosomiasis) is a cause of myocarditis in the southern United States causing cardiac conduction abnormalities, arrhythmias, and heart failure. Objectives To report clinical findings and outcome in Chagas positive (CP) dogs requiring pacemaker implantation for bradyarrh...

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Bibliographic Details
Published in:Journal of veterinary internal medicine 2013-07, Vol.27 (4), p.890-894
Main Authors: Saunders, A.B., Gordon, S.G., Rector, M.H., DeMaster, A., Jackson, N., Clubb, F.J., Fosgate, G.T., Miller, M.W.
Format: Article
Language:English
Subjects:
Animals
Arrhythmias
Atrioventricular block
Bradycardia - etiology
Bradycardia - pathology
Bradycardia - veterinary
Canine
Cardiomyopathy
Cardiovascular disease
Chagas Cardiomyopathy - complications
Chagas Cardiomyopathy - pathology
Chagas Cardiomyopathy - veterinary
Chagas disease
Dog Diseases - pathology
Dog Diseases - therapy
Dogs
Female
Heart
Logistic Models
Male
Myocarditis
Pacemaker, Artificial - veterinary
Pacemakers
Protozoa
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Summary:Background Chagas disease (Trypanosomiasis) is a cause of myocarditis in the southern United States causing cardiac conduction abnormalities, arrhythmias, and heart failure. Objectives To report clinical findings and outcome in Chagas positive (CP) dogs requiring pacemaker implantation for bradyarrhythmias. Animals One hundred and forty‐four client‐owned dogs requiring pacemaker implantation. Methods Retrospective case series. Information regarding history, physical exam, laboratory and diagnostic imaging findings, treatment, and survival were obtained from medical records, with additional follow‐up information obtained by contacting referring veterinarians and owners. Results Of the 144 dogs requiring pacemaker implantation from January 2001 to May 2010, 83 (57.6%) had a Chagas titer performed and 9 (10%) were CP. Concurrent ventricular arrhythmias (odds ratio 1.61, P = .005) or atrioventricular (AV) block (odds ratio 4.18, P 
ISSN:0891-6640
1939-1676
DOI:10.1111/jvim.12098