[Roentgenologic evaluation of myocardial contractility in heart valve diseases]. / Rentgenologicheskaia otsenka sokratitel'noi funktsii miokarda pri klapannykh porokakh serdtsa.

The authors compare the roentgenological findings with the parameters of contractility obtained during heart catheterization in 49 patients with mitral valvular disease and aortal valvular disease. The parameters are shown to be correlated with regard to the nature of valvular damage, characteristics of the impairment of the intracardiac hemodynamics and myocardial contractile function. Certain tendencies of this dependence are tabulated.

[X-ray angiocardiographic characteristics of the heart in arterial hypertension]. / Rentgenoangiokardiograficheskaia kharakteristika serdtsa pri arterial'noi gipertonii.

Correlation-statistical analysis of the roentgenocardiometric indices and the findings of left ventriculography in 30 patients with arterial hypertension was conducted. A significant inter-relationship of the roentgenometrical criteria of enlargement of the heart (cardiothoracic index, the extent of convexity of the arch of the pulmonary artery and, to a lesser measure, the cardiac volume) with the mass of the myocardium and the thickness of the left ventricular wall was revealed. The roentgenological criteria may complement the existing methods of the assessment of the degree of myocardial hypertrophy in arterial hypertension.

[Cartogram of 35 ECG leads in hypertrophy of the right ventricle of the heart]. / Kartogramma 35 otvedenii EKG pri gipertrofii pravogo zheludochka serdtsa.

Automatedly-reproduced cartograms of 35 electrocardiographic leads in 27 cases of isolated right-ventricular hypertrophy (RVH) were analysed in relation to the latter's roentgenocardiometric markedness, and the obtained results were substantiated in terms of spacial vectorcardiography. A direct correlation was established between cartographic and roentgenocardiometric data in cases of moderate RVH that was absent in marked RVH. The correlation between cartographic and vectorcardiographic parameters was, on the contrary, only slightly expressed in moderate RVH and high in marked RVH cases. These results can be attributed to specific anatomical structure of the hypertrophic myocardium at different stages of RVH formation, with either the outflow-pathway hypertrophy proper prevailing at early stages of hypertrophic development, or the right-ventricular free wall hypertrophy prevailing at later stages which result in irregular thickening of individual compartments and distortion of cavity size characteristics and geometrical properties of the right ventricle proper, as well as the displacement of the center of gravity and heart rotation round its own axes.

[Experimental and clinical data on the state of the atria in postinfarct cardiosclerosis]. / Eksperimental'nye i klinicheskie dannye o sostoianii predserdii pri postinfarktnom kardioskleroze

In 16 rabbit experiments with macrofocal postinfarction cardiosclerosis and 8 control intact animals delayed electron microscopy of myocardium portions from the left ventricle and atria was undertaken, and in 76 clinical observations of patients who had survived a myocardial infarction 1 to 10 years before the examination the indices of the haemodynamic and electrical activity of the atria were compared with those of the contractile function of the left ventricular myocardium under bicycle exercise tests of a growing intensity (with the data of the left ventricular ultrastructure--in the experimental cases). The changes in the left atrium were found to be of an adaptational nature, the right atrium entering the pathogenetic chain when the compensatory capacities of the left atrium got exhausted in the course of the disease, this being a prognostically alerting sign.

[Functional state of the myocardium in chronic hepatitis and liver cirrhosis after acute strophanthin stimulation]. / Funktsional'noe sostoianie miokarda u bol'nykh khronicheskim gepatitom i tsirrozom pecheni v usloviikh ostroi strofantinovoiproby

Thirteen patients with chronic hepatitis and 34 with liver cirrhosis, aged 15 to 68 years, were subjected to a study of myocardial contractility by means of phase analysis of cardiac contractions and roentgenocardiometric determination of the cardiac volume, to a study of total haemodynamics by means of radiocardiography, that of intrahepatic circulation -- by rheohepatography under acute strophanthin stimulation. The revealed peculiarities of cardiohaemodynamics can be used for a prognostic evaluation of the efficiency and expediency of the employment of digitalispreparations in such patients.

[Evaluation of myocardial contractile function in chronic postinfarct cardiac aneurysm]. / K otsenke sokratitel'noi funktsii miokarda u bol'nykh s khronicheskoi postinfarktnoi anevrizmoi serdtsa.

The ventriculograms of patients with chronic postinfarction aneurysm of the heart were studied with the use of separate analysis of the contraction indices of the functioning and non-functioning parts of the left ventricular myocardium. Relatively high indices of the ejection fraction of the functioning part of the myocardium with low indices of the total ejection fraction were noted. A correlative dependence was found between the total ejection fraction and the ratio of the volumes of the nonfunctioning part of the myocardium during systole and diastole to the total volume of the left ventricle during the same phases, which is evidence that these indices are important in appraising myocardial contractile function in aneurysm of the heart.

[Automated selection of optimal parameters of precordial mapping in the diagnosis of right-ventricular hypertrophy]. / Avtomatizirovannyi vybor optimal'nykh parametrov prekordial'noi karty dlia diagnostiki gipertrofil pravogo zheludochka.

New diagnostic parameters, improving the specificity and sensitivity of electrocardiographic diagnosis of right-ventricular hypertrophy, have been identified on the basis of an automated analysis of precordial maps in 56 patients with isolated right-ventricular hypertrophy and 71 normal subjects.

[Myocardial contraction in ischemic heart disease]. / Sokratitel'naia funktsiia miokarda u bol'nykh ishemicheskoi bolezn'iu serdtsa.

The indices of contractility of the left ventricular myocardium were studied by means of ventriculography and catheterization in 84 patients with ischemic heart disease according to the extent of damage to the coronary arteries and the course of the disease. Changes in the coronary arteries were encountered twice as frequently among patients with postinfarction cardiosclerosis as among patients with angina pectoris and no history of infarction. The main cause of disorders of myocardial contractility in patients with ischemic heart disease is post-infarction cardiosclerosis (56% of cases). Signs of impaired functional capacity of the left ventricle appeared in segmental asynergy involving 20 to 25% of its circumference. Changes in the indices of contractility were revealed in 13% of patients with angina pectoris.

[Stimulators of beta-adrenergic structures in treatment of ischemic heart disease]. / Stimuliatory beta-adrenergicheskikh struktur v terapii bol'nykh ishemicheskoi bolezn'iu serdtsa

The beneficial effect of stimulators of beta-adrenergic structures (Myophedrin on the haemodynamics and the inotropic function of the myocardium was demonstrated experimentally (in 12 rabbits) and clinically (in 53 patients with ischaemic heart disease). A positive effect of the treatment was noted in 45.5% of those patients in whom ischaemic heart disease manifested itself in angina decubitus and angina of effort.

[Comparative characteristics of the physical, x-ray and hemodynamic data in assessing heart failure in myocardial infarct]. / Sravnitel'naia kharakteristika fizikal'nykh, rentgenologicheskikh i gemodinamicheskikh dannykh pri otsenke serdechnoi nedostatochnosti u bol'nykh infarktom miokarda.

The physical and X-ray findings in 103 patients with acute myocardial infarction were compared with the value of left-ventricular filling pressure (LVFP). The LVFP was determined from the level of end diastolic pressure in the pulmonary artery determined by means of a balloon catheter. On the whole, the congruence was revealed between the X-ray findings and the LVFP. A still more definite picture may be obtained of the LVFP value if the results of physical examination are considered in addition to the X-ray data. At the same time, a disparity arises in some cases between the information obtained by means of catheterization of the pulmonary artery on the one hand and the physical and X-ray methods on the other. This must be borne in mind in applying intensive therapeutic measures, e. g. in cases with acute left-ventricular insufficiency, because erroneous therapeutic tactics may be chosen due to "post-therapeutic delay" of the physical and X-ray symptoms.

[Roentgencardiometry and prognosis in myocardial infarct (clinical and roentgenological correlations)]. / Rentgenokardiometriia i prognoz u bol'nykh infarktom miokarda (kliniko-rentgenologicheskie sopostavleniia).

Primary roentgenocardiographic findings (within the first two days of infarction) were correlated with the assessment of improvement in patients' condition at the post-hospital rehabilitation stage (2 years' follow-up). A relationship between the category of severity of the patient's condition at the acute stage of infarction, its long-term improvement and the initial size of the heart was demonstrated. It is suggested that roentgenocardiometric data can provide an essential addition to the criteria of clinical and occupational prognosis in myocardial infarction patients.

[Electrocardiogram changes in hypertrophic cardiomyopathy]. / Izmeneniia élektrokardiogrammy pri gipertroficheskoi kardiomiopatii.

Eight versions of ECG alterations were identified in 84 patients with hypertrophic cardiomyopathy (HCMP). As for the most prevalent version (60.7 percent of the cases), the pathological Q waves or QS were recorded in the presence of the voltage signs of ventricular hypertrophy or without such signs. The use of ultrasound cardiography and roentgenocardiography made it possible to distinguish 3 groups of patients with different myocardial hypertrophy. The first group included 20 patients with isolated hypertrophy of the interventricular septum (IVS), the second group 40 patients with IVS and left ventricle hypertrophy, and the third group included 24 cases of IVS hypertrophy and combined hypertrophy of the ventricles. The main features of ECG alterations were determined in accordance with the types of hypertrophy under consideration. In the first group, Q waves were mainly recorded (in 71.4 percent of the cases). In the second group, the signs of left ventricle hypertrophy were recorded in 50 percent of the cases while Q/QS in 62.5 percent of the cases. In the third group, the voltage signs of ventricular hypertrophy were observed in 62.5 percent of the cases, whereas the Q and QS were recordable less commonly (in 41.7 percent of the cases).