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Biomedical subjects

L A Stadniuk

Publications and source records attributed to L A Stadniuk.

At least 19 recordsLinked to original sources
PubMed1998

[The hormone level of the blood from the aorta and the coronary sinus in patients with ischemic heart disease under conditions of preoperative stress].

A total of 156 patients with ischemic heart disease were examined under conditions of preoperative stress in a multiple-modality study performed with the aid of such techniques as echocardiography involving calculation of the myocardial mass index, coronaroventriculography, measurements of the adrenocorticotrophic hormone, hydrocortisone, somatotrophic hormone, triiodothyronine and thyroxin in the blood from the coronary sinus and aorta. A conclusion has been reached that emotional strain influences myocardial hypertrophy. A possible significance of the studied hormonal indices is shown together with features thereof in IHD patients presenting with different degrees of left ventricular hypertrophy.

Adult↗
PubMed1992

[Diastolic filling of the left ventricle in relation to the degree of its hypertrophy in patients with ischemic heart disease].

The features of diastolic filling of the left ventricle (LV) were examined in relation to the nature of its hypertrophy in patients with coronary heart disease (CHD). A total of 110 male patients with CHD concurrent with essential hypertension or without it who underwent contrast ventriculography in order to determine LV diastolic stiffness. Radionuclide ventriculography was performed in 49 patients at rest and during exercise. The CHD patients with moderate LV concentric hypertrophy had more adequate LV diastolic filling in the presence of concurrent essential hypertension. Abnormal diastolic filling was more pronounced in CHD patients without hypertrophy or its eccentric development than in those without essential hypertension.

Adult↗
PubMed1991

[Left ventricular hypertrophy as an indication for the prescribing of calcium antagonists in patients with ischemic heart disease].

An analysis of the dynamics of diastolic rigidity, contractile function of the left ventricle and physical load tolerance under the effect of single intakes of phynoptin and corinfar and their course use in patients with IHD showed that they were more effective in case of increased mass of the myocardium. This indicates that increased mass of the myocardium is an additional indication to calcium antagonists in these patients.

Adult↗
PubMed1990

[Electrocardiographic indices in the assessment of left ventricular hypertrophy].

The authors compared the electrical activity of the heart with results of echocardiography during rest and during bicycle ergometry [correction of veloergometry] in 240 patients with ischemic heart disease, 60 patients with hypertensive disease and in 16 healthy persons. In some of the patients coronarography was carried out. It was established that the informative value of electrocardiography in assessment of the anatomo-functional state of the left ventricle depended on the contingent of the examined patients and reduces as disorders of the functional state of the myocardium tended to advance. The specificity and sensitivity of the electrocardiographic signs of left ventricular hypertrophy reduced in disturbances of ventricular conduction, presence of myocardial infarction in the anamnesis, increase of involvement of the cardiac arteries.

Adult↗
PubMed1990

[The functional assessment of left ventricular hypertrophy in patients with ischemic heart disease].

It was established that left ventricular hypertrophy in patients with ischemic heart disease associated with hypertensive disease reflects a functionally more intact myocardium than similar hypertrophy in analogous patients without hypertensive disease. Hypertrophy of the left ventricle in patients with ischemic heart of different severity may be considered an index of myocardial lesion and this should be considered in the treatment tactics.

Adult↗
PubMed1990

[Causes and significance of myocardial ischemia occurring during coronary-ventriculography in patients with ischemic heart disease].

A relationship was examined between the development of myocardial ischemia in patients with coronary heart disease before coronary ventriculography and the status of coronary vessels, coronary reserve, myocardial contractility, and the autonomic nervous system. Before coronary ventriculography, myocardial ischemia was found to occur in the patients when there was a marked activation in the sympathetic portion of the autonomic nervous system and a clear-cut decrease in coronary reserve. The occurrence of myocardial ischemia in the patients before coronary ventriculography contributed to decreased left ventricular myocardial contractility and increased the cardiodepressive effects of a contrast agent.

Adult↗
PubMed1990

[Electrocardiographic signs of hypertrophy of the interventricular septum in patients with hypertrophic cardiomyopathy].

An analysis of electrocardiographic signs of interventricular septum hypertrophy depending on the prevailing location as evidenced by echocardiographic data in 34 patients with hypertrophic cardiomyopathy established that local hypertrophy is reflected in changes of the depolarization phase as well as repolarization phase of the electrocardiogram of various degrees. It is concluded that the revealed changes should be considered, in particular, in dynamic observations, for their differentiation with possible analogous changes of the bioelectric activity of the myocardium in patients with ischemic heart disease.

Adult↗
PubMed1983

[The end portion of the ECG ventricular complex and intracardiac hemodynamics during exercise in patients with ischemic heart disease and hypertension].

Comparison of exercise-induced variations in the end portion of electrocardiographic ventricular complex and the echocardiographic pattern showed that amplitude changes and T-wave inversion in response to exercise developed where hemodynamic support was less economical in patients with stage-IIA essential hypertension. In essential hypertension, the spread of myocardial ischemic area, as determined by the number of ECG leads showing post-exercise ST displacement, was related to the type of hemodynamic response. The number of ECG leads with displaced ST is a factor to be considered in the assessment of exercise test results.

Adult↗