Journal of electrocardiology.
Publisher:
Research in Electrocardiology, inc.. New York, NY : Churchill Livingstone
Frequency: Quarterly
Country: United States
Language: English
Author(s):
International Society for Computerized Electrocardiology., International Society of Electrocardiology.
Start Year:1968 -
ISSN:
0022-0736 (Print)
1532-8430 (Electronic)
0022-0736 (Linking)
1532-8430 (Electronic)
0022-0736 (Linking)
Impact Factor
1.3
2022
| NLM ID: | 0153605 |
| (DNLM): | J19720000(s) |
| (OCoLC): | 01754562 |
| Coden: | JECAB4 |
| LCCN: | 75003900 |
| Classification: | W1 JO628R |
The normal electrocardiogram of the domestic pony. Twelve-lead electrocardiograms (ECGs) were recorded from 52 resting mature female domestic grade ponies. Evaluation of the 50 ECG's ultimately selected for analysis revealed numerous differences from accepted normal values of horses. Among these differences are shorter durations of the P and QRS complexes as well as P-R and Q-T intervals and a lower amplitude of the P wave. Pony ECG's displayed a lower incidence of wandering pacemaker and complete absence of second degree atrioventricular block, in contrast to the relatively routine occurrence of these phenomena in the horse. The existence of ...
Studies on the equine cardiac electric field. I. Body surface potentials. The paper describes the distribution of cardiac potentials on the body surface of four horses. Potentials were recorded at 200 to 300 equallyspaced sites synchronously with a reference lead; they were measured at 10 msec. instants of time, and were plotted on diagrams. While some evidence of multiple dipolar activity occurred during each part of the cardiac cycle, the majority of potentials arose as if from a single resultant dipole.