[Importance of combined instrumental study methods in the expertise of the work capacity of ischemic heart disease patients with stable stenocardia].

Working capacity of 87 coronary patients with stable angina was assessed on the basis of a functional classification of the results of non-invasive investigations (resting ECG, bicycle ergometry, echocardiography). Bicycle ergometry proved to be the most informative method providing indirect evidence of coronary reserve. An objective assessment of the condition of coronary patients can be made using values of exercise tolerance (threshold capacity and volume of work), heart rate and double product at the peak of exercise. A close correlation exists between the severity of atherosclerotic affection of coronary arteries and individual exercise tolerance, which can be used in the medical evaluation of the working capacity of coronary patients with stable angina pectoris.