[Intravenous digital subtraction ventriculography: technical and methodologic aspects, a comparison with cineventriculography]. / Vnutrivennaia tsifrovaia subtraktsionnaia ventrikulografiia: tekhniko-metodicheskie aspekty, sravnenie s kinoventriculografiei.

Intravenous digital subtraction ventriculography (IDSV) was performed in 294 patients with various pathology. The IDSV method and conditions for obtaining informative ventriculograms were described. Hemodynamic indices and LV segmental contractility were assessed. IDSV and CVG data were compared in 52 cases. The results of both methods showed high correlation, IDSV having advantages over CVG (the absence of a cardiosuppressive effect resulting from direct administration of a contrast medium into the LV chamber and excluding LV quantitative overload). IDSV as a semiinvasive and easy-to-perform method has no contraindications.

[Lesions of the coronary bed in patients with ischemic heart disease and ECG changes at rest]. / Porazhenie koronarnogo rusla u bo'lnykh ishemicheskoi bolez'niu serdtsa s izmeneniiami EKG pokoia.

The data of ECG at rest and of coronary angiography have been analyzed in 184 patients. Correlations between various ECG changes and the coronary bed involvement have been revealed. The authors have calculated the sensitivities and specificities of some ECG symptoms for the prediction of an atherosclerotic involvement of the coronary arteries. A sufficiently high specificity of ECG examination (89.1%) makes it useful for active detection of coronary patients, whereas its low specificity (54.2%) necessitates employment of supplementary methods of investigation.

[Isolated coronary stenosis: clinical picture, contractile function of the left ventricle and central hemodynamics]. / Izolirovannyi koronarnyi stenoz: klinika, sokratitel'naia funktsiia levogo zheludochka, tsentral'naia gemodinamika.

Clinical manifestations of coronary disease, medical history, left-ventricular segmental contractility and central hemodynamics were examined in 54 patients, aged 32 to 45, with an isolated 75-99% stenosis of a major coronary artery. The most common isolated stenosis in the anterior interventricular branch (AIVB) of the left coronary artery is associated with more severe clinical coronary symptoms. Total damage to the coronary channel is twice as great where AIVB is affected as it is with lesions of the right (RCA) or the circumflex (CA) coronary artery. AIVB stenosis results in more serious disorders of left-ventricular segmental contractility and central hemodynamics, with the end diastolic index showing the most dramatic rise. Isolated AIVB stenosis is associated with a higher risk of myocardial infarction, as compared to the RCA or CA stenosis.