ELECTROCARDIOGRAPHY IN CANINE CARDIAC DISEASES

Abstract

In this article, electrography for diagnosis and screening of fifteen dogs for cardiac diseases were done. ECG waveform measurement and interpretation was performed using standard bipolar (Lead I, II & III) and augmented limb leads (aVR, aVL & aVF). The ECG waveform measurements revealed significant (p<0.01) increase in P (sec) and P (mV) in both hypertrophic cardiomyopathy and valvular disease groups indicating atrial enlargement. Arrhythmias observed in cardiac diseases were increased QRS duration, electrical alternans, atrial fibrillation, ST depression, P mitrale, increased QRS amplitude, ventricular premature complexes (VPCs), deep Q wave, atrioventricular (AV) blocks and right bundle branch block (RBBB). Timely performed electrocardiography is helpful in screening and diagnosing canine cardiac diseases and arrhythmias.