Electrocardiographic studies in African green monkeys (Cercopithecus aethiops)

Electrocardiograms obtained as part of a pre-experimental clinical examination were analyzed for a newly purchased group of 46 male African green vervets. In general, they were similar to electrocardiograms reported for other Old World species. An unexpectedly high prevalence (17%) of electrocardiogram abnormalities was found in this young (4--6 years of age) vervet population. The main abnormalities were nonspecific T wave flattening, left axis deviation, peaked P waves, RSR' patterns, and abnormally deep Q waves.