Electrophysiologic Studies in Octogenarians.

To assess the risk-benefit of electrophysiologic studies (EPS) in very elderly patients, we studied 104 consecutive patients 80 years or older who underwent EPS during hospitalization. Seventy-two percent of the patients had a history of coronary artery disease, and 7% had an acute myocardial infarction during the hospitalization. Other cardiac disorders included valvular heart disease (17%) and cardiomyopathy (12%).