THE EFFORT TEST IN ANGINA PECTORIS

Abstract
100 cases of unequivocal angina pectoris, selected because their ecgs. were normal at rest, and 100 normal controls were subjected to an effort test. The effort necessary to produce a positive result varied from patient to patient. 95% of those with a heart rate above 90 had positive results, as compared with 5 to 12 with rates below 90. 26 of 30, who had no pain after effort, had diagnostic ecg. changes. The severity of pain was not related to the incidence of positive tests.