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Biomedical subjects

V V Bobkov

Publications and source records attributed to V V Bobkov.

At least 37 records · Page 2Linked to original sources
PubMed1982

[Role of echocardiography in preoperative diagnosis of organic defects of the tricuspid valve in patients with rheumatic mitral heart defects].

The results of investigations by echoCG, ECG, FCG, sphygmography, roentgenography, including cardiac catheterization, of 16 patients with rheumatic mitral-tricuspid disease of the heart were compared. The organic injuries of the tricuspid valves (OITV) were confirmed during operation. With respect to preoperative diagnosis of OITV the sensitivity of echoCG was equal to 94 %, polycardiography--81 %, roentgenography--54 %, cardiac catheterization--94 %. Thus, echoCG proved to be the most accurate method of the primary asanguineous diagnosis of an organic injury of the tricuspid valve. The echocardiographic diagnosis of OITV included the symptoms of constriction of the right atrioventricular orifice and fibrous alterations of the valve cusps. Possible technical errors of the methods in respect to the detection of OITV are discussed.

Adult↗
PubMed1980

[Methodological aspects of contrast echocardiography].

Contrast echocardiography was applied in the examination of 38 patients with various congenital and acquired heart diseases. The dye cardiogreen and physiological saline solution were used as the contrast medium. The technique of contrast echocardiography is described. It is shown that the method of contrast echocardiography allows one to visualize the direction in which the intracardiac streams of blood move, which makes it possible to use the method in the diagnosis of septal defects and cardiac valve insufficiency.

Adolescent↗
PubMed1980

[Mobility of the mitral valve cusps in mitral stenosis studied by 2-dimensional echocardiography].

The object of the work was to disclose the possibilities of bimetric echocardiography in appraising the mobility of the mitral valve cusps in patients with mitral stenosis. The shape of the mitral cusp movement was studied in the longitudinal and transverse planes of the heart section. The results of the ultrasonic examinations were compared with the operative findings in 68 patients operated on for mitral stenosis. In satisfactory mobility of the valve, "sail-shaping" of the cusps is recorded in the longitudinal plane of the heart section and a concavity in the transverse plane in the period of diastole. In coarse fibrosis of the cusps, the diastolic movement of the surface of the anterior cusp is recorded as a displacement of a straight line which moves parallel to its initial position in the period of systole. Bimetric echocardiography makes it possible to determine exactly the character of the mitral valve lesion and determine the degree of mobility of the cusps in patients with mitral stenosis. This information may be decisive in choosing the method of surgical correction of the disease.

Adolescent↗
PubMed1978

[Echography of the right sections of the heart (methodological aspects of ultrasonic location)].

In location of the cardioelements from the intercostal spaces at the left sternal border, the anteroposterior directions of the ultrasonic beam are called standard positions of the sensor, while the right directions of the beam--the right positions of the sensor. In definite cases the use of the right positions of the sensor makes it possible to record the right cavities of the heart. Depending on the foreshortening of the locating impulse, considerable variability of the shape of triacuspid valve movement is noted. The pulmonary valve is usually represented on the echogram at a depth of 3--5 cm by a thin linear structure which moves away from the thoracic wall rapidly during the ejection period. It is presumed that the recording of the right parts of the heart will yield valuable diagnostic information in echocardiographic examination.

Adolescent↗
PubMed1978

[Echocardiography in the diagnosis of tetralogy of Fallot].

Echocardiography was performed in the examination of 35 patients with tetralogy of Fallot and 3 patients with pentalogy of Fallot. The echocardiogram demonstrated dextrodivision of the aortic root, interruption in the continuity of the interventricular septum and the anterior wall of the aorta, incomplete image of the interventricular septum in its upper part, distention of the aortic root, stenosis of the right ventricular infundibulum, and hypertrophy of the right ventricular myocardium. The presence and severity of all developmental anomalies of the heart and major vessels known as tatraology of Fallot may be identified by the echocardiography method in most cases.

Adolescent↗
PubMed1977

[Comparison of the echocardiographic indices of myocardial contractility and of the results of a bicycle ergometer test in chronic ischemic heart disease].

On comparing the results of study of the cardiohemodynamics indices under conditions of submaximum or threshold bicycle-ergometry load with the findings of echocardiography at rest in 64 patients with chronic ischemic heart disease, the authors conclude that echocardiography is a very promising method for ascertaining the cardiac muscular reserve, particularly in those patients with ischemic heart disease in whom the low coronary reserve does not allow the performance of tests under conditions of physical exertion.

Cardiac Volume↗
PubMed1977

[Echocardiographic diagnosis of rheumatic mitral valve insufficiency].

Echocardiography was used for the examination of 45 patients with rheumatic mitral valve insufficiency. Echocardiographic data were found to permit making the diagnosis of mitral valve disease and differentiating within the group of mitral valve disease as such. A mitral disease with prevailing insufficiency is characterized on an echocardiogramme by a unidirectional diastolic movement of thickened mitral cusps, by an increased general excursion of the mitral valve, dilatation of the left ventricular cavity, increased systolic excursion of the ventricular septum, and a significant dilatation of the left atrial cavity. "Pure" mitral insufficiency is characterized by a dilatation of the left heart, vari-directional movements of the mitral cusps during the diastole, and a marked lack of their closure during the systole.

Adolescent↗
PubMed1977

[Initial stage of cardiac insufficiency as a complication of a past myocardial infarct].

An instrumental and roentgenological examination was conducted in 164 patients who had survived myocardial infarction 1 to 10 years before the examination and having been free of any clinically manifest signs of congestive heart failure. The investigation included a study of the inotropic and pump function of the myocardium of the left ventricle, the electric and mechanical activity of the left atrium, the pulmonary haemodynamics under bicycle tests of growing power, and under identical conditions after premedication with cardiac glycosides (0.00036 mg/kg of body weight of Strophanthin K). Proceeding from the study of the readaptation of the circulation system and its transit to the initial stage of cardiac insufficiency the authors developed criteria of the onset of therapy for latent cardiac failure in patients with postinfarction cardiosclerosis.

Adaptation, Physiological↗