[Diagnostic possibilities of radionuclide methods of studying patients with stable and unstable angina pectoris]. / Diagnosticheskie vozmozhnosti radionuklidnykh metodov issledovaniia u bol'nykh so stabil'noi i nestabil'noi stenokardiei.

Myocardial radiocardiography and scintigraphy with 99mTc-pyrophosphate was performed in 58 patients with stable angina and 60 patients with unstable angina. In patients with stable angina, positive scintigrams were mostly recorded after anginal attacks. Their central hemodynamic parameters deteriorated progressively as angina increased in severity. Patients with unstable angina typically showed myocardial accumulation of the label that was unrelated to anginal attacks and recordable by direct-projection scintigraphy. The assessment of myocardial radiocardiographic and scintigraphic data allows one to differentiate between stable and unstable angina.

[Dynamics of electrocardiographic, cardiohemodynamic and biochemical indices as affected by intensive bicycle ergometer training in stenocardia patients]. / Dinamika nekotorykh élektrokardiograficheskikh, kardiogemodinamicheskikh i biokhimicheskikh pokazatelei pod vliianiem intensivnykh trenirovok na veloérgometre u bol'nykh so stenokardiei.

Intensive training in patients with IHD suffering from attacks of angina pectoris helps to enhance tolerance to exercise and to increase the volume of the work performed. In response to the threshold exercise the degree of pathological displacement of ST segments on ECG diminishes and in 34% of patients with the initial signs of coronary insufficiency the ECG parameters return to normal. The cardiohaemodynamic picture points to the economical activity of the cardiovascular system in performing "preischaemic" exercise and to the improvement of the reaction both at the expense of exercises. This supervenes both at the expense of the improved contractile function of the myocardium in the presence of activation of aerobic glycolysis and also through decreased peripheral vascular resistance. The training gives best effect with its timely use in subjects with the initial manifestations of coronary insufficiency.