[Distribution of surface electric potentials in the horse heart].

The study investigates the distribution of surface electric potentials in the heart of horses, identifying ideal locations for uni-leak bipolar electrocardiography and radiotelemetric EKG registration based on the detected potentials.

Measurement of Surface Electric Potentials

• In the research, surface electric potentials in the heart of four horses were measured. This measurement was conducted using unipolar leak with a central Wilson’s clip, a technique used for measuring the electrical activity in the heart.
• These measurements were carried out on 95 specifically chosen places on the horse’s body.

Re-analysis of Detected Potentials

• The potentials discovered in this way were then re-analyzed using bipolar leaks. In this analysis approach, the negative electrode was kept at the location with the highest negative potential, while the positive electrode was moved to different locations with high positive potential values.
• The largest potential variations were found when the negative electrode was placed in the heart region; and these variations were obtained from regions such as the withers, spinal and scapular regions, forehead, and nose.

Selection of Sites for Electrocardiography and Radiotelemetric Registration of EKG

• Through these potential differences, the most suitable places for applying uni-leak bipolar electrocardiography and radiotelemetric EKG registration were identified.
• The most ideal leak, which was proven to give the best potential and time reproducibility for EKG, was found to be apex of the heart — withers.

Data Processing and Results

• The results obtained from this research were statistically processed and arranged graphically, providing a holistic view of the distribution of surface electric potentials in the horse’s heart.