ECHOCARDIOGRAPHIC EVALUATION OF CARDIOMYOPATHY AND ITS TREATMENT IN DOGS
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Date
2013-02
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SRI VENKATESWARA VETERINARY UNIVERSITY , TIRUPATI – 517502. (A.P.) INDIA
Abstract
ABSTRACT
The aim of the study was to describe clinical signs and haemato-biochemical findings in dogs with cardiomyopathy, to evaluate the cardiomyopathy in dogs with electrocardiography, thoracic radiography and echocardiographic examination and to study the therapeutic success rate in dogs with cardiomyopathy.The study revealed high incidence of dilated cardiomyopathy (DCM) in Labrador retriever (56.25%), with male predominance and in the age group of 4-8 years.The clinical signs observed were cough, exercise intolerane, syncope, pedal edema, inappetence, weight loss and abdominal distention in DCM dogs with congestive heart failure.The physical examination findings were tachycardia, tachypnoea, dyspnoea, crackles and ascites. Haematological values showed the results of normal haemogram and leukogram. In serum biochemistry profile, elevated serum urea nitrogen, creatinine, aspartate transaminase (AST), CK-MB and cardiac troponin-I and normal sodium and potassium were observed.Thoracic radiography revealed cardiomegaly, pulmonary edema and prominence of left atrium. In electrocardiography, atrial fibrillation, ventricular premature contractions, left ventricular enlargement, left atrial enlargement and sinus tachycardia were more common.The M-mode echocardiography in DCM dogs showed elevated left ventricular internal dimensions, decreased left ventricular posterior wall thickness, elevated left atrium dimension, decreased aortal diameter, increased end point septal separation and reduced left ventricular contractility indices. Combination of L-carnitine and herbal drug abana was found to be effective in the management of congestive heart failure in dogs with DCM.
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