[Classification of the degree of severity of coronary insufficiency in patients with stenocardia at rest and moderate exertion based on isometric load data].

A classification of the severity of coronary insufficiency has been developed on the basis of isometric exercise (hand-grip) testing for patients with angina of minor effort and angina at rest. A study of 177 coronary patients has demonstrated that the increment of the pulse-pressure index by the time of ST depression, as compared to the resting values, is the most valuable diagnostic quantitative marker of the severity of coronary insufficiency at isometric testing. Three degrees of the severity of coronary insufficiency (extremely severe, severe and moderately severe) have been identified with respect to this parameter.