RESUMEN
In addition to a complex of treatment measures, 51 patients with unstable angina pectoris received quantum hemotherapy--laser and ultraviolet blood irradiation. The control group was made up of 18 patients given pharmacological agents. The treatment efficacy was judged from the decrease of the frequency, duration and depth of painful and painless myocardial ischemia, the rate of ventricular and supraventricular premature heart beat in accordance with the data of Holter's monitoring and the rise of exercise tolerance by the bicycle ergometry data. It has been established that quantum hemotherapy raises the treatment efficacy in patients resistant to the conventional pharmacological therapy. The anti-ischemic and antianginal action was found to be more remarkable in laser blood irradiation. The antiarrhythmic action of both modalities manifests in curtailment of high grades premature heart beats.