ELECTROCARDIOGRAPHIC RECORDS OF DOGS WITH HEART ARRHYTHMIAS AND NORMAL VOLTAGE (AMPLITUDE) OF THE WAVE OF THE ECG

Violeta Alexandrova

Abstract: In this reserach, 57 dogs with heart arrhythmias have been examined electrographically. The dogs have been divided into two groups, depending on the voltage (amplitude) of the wave of the electrocardiogram, where 34 of them had normal and the rest 23 had high voltage components of the ECG. The values for the amplitude and the duration of all the elements of the ECG in the dogs with arrhythmias and normal amplitude of the wave R have been calculated and presented, as well as the systolic index and the electric heart axis in the same animals. Besides the basic electrocardiographic sign - а different R-R interval`s duration between the cardiac cycles, in some ECG other resulting modifications have been observed, where the changes might be related to diseases of the pericardial sac of the heart, diseases of the myocardium and in the cases of cardiomyopathies.

Keywords: arrhythmia; ECG; heart diseases

Date published: 2023-03-01