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Biomedical subjects

A V Strutynskiĭ

Publications and source records attributed to A V Strutynskiĭ.

18 recordsLinked to original sources
PubMed1991

[Origin of QS complexes in hypertrophic cardiomyopathy and acute myocardial infarction].

Superficial cardiac ECG mapping was performed to examine 16 patients with acute myocardial infarction and 13 with hypertrophic cardiomyopathy who had electrocardiographic signs of focal myocardial changes (QS complex and/or abnormal Q wave). Deviation of instantaneous ventricular depolarization vectors in the direction opposite the malfunctioning myocardial portion that had partially or completely lost its electric activity was found to underlie the formation of QS complex in patients with acute myocardial infarction. In some patients with hypertrophic cardiomyopathy, an abnormal QS complex is attributed to sharp changes in central and end instantaneous depolarization vector orientation in the direction of the most hypertrophic septal portions, the location of a QS areas corresponding to variants of asymmetric septal hypertrophy.

Action Potentials↗
PubMed1990

[Diagnostic possibilities of precordial electrocardiographic mapping in the assessment of the results of dipyridamole test in patients with ischemic heart disease].

The dynamics of cross-sectional, isochronic, and integral maps of electric potential distribution during the dipyridamole test was examined in 35 patients with verified coronary heart disease and 12 control patients. Basic differences were found in changes of excitation propagation velocities and positive potential amplitude in the groups examined. A local increase in R wave areas on the maps of positive potential differences was found to be the most significant mapping sign of transient myocardial ischemia (the sensitivity, specificity, and diagnostic accuracy being more than 97%). The diagnostic accuracy of an absolute or relative increase in the integral time and amplitude parameters of the mapping was 77% and 70%, respectively.

Adult↗
PubMed1988

[Early diagnosis of left-ventricular hypertrophy using precordial electrocardiographic mapping of the heart].

Quantitative indices of instantaneous maps of the distribution of electric potential on the chest surface were compared to a left ventricular myocardial mass value, calculated on the basis of echocardiographic results and echocardiographic signs of left ventricular hypertrophy, in 77 patients with essential hypertension or neurocirculatory dystonia of hypertensive type and in 25 healthy controls. Four quantitative cartographic indices were shown to be very important for diagnosis: 1) tMaxk; 2) tapic; 3) + sigma QRS; 4) NQ15. The sensitivity, specificity and accuracy of diagnosis of left ventricular hypertrophy was over 80%. Cartographic quantitative indices were shown to correlate with a high degree of significance (p less than 0.01) (r much greater than 0.75) with a left ventricular myocardial mass value calculated on the basis of echocardiography results.

Adult↗
PubMed1986

[Relation between features of the psychoemotional status and lipid metabolism of patients with ischemic heart disease and arrhythmias].

Interrelationship of the peculiarities of the psychoemotional status, the activity of lipid peroxidation and the content of blood free fatty acids were studied in 64 CHD patients with arrhythmia. It was shown that prolonged and pronounced psychoemotional strain, high levels of the activity of free radical lipid oxidation and the content of nonesterified fatty acids in the blood of CHD patients promoted the development of cardiac rhythm disturbances, particularly of ventricular extrasystoles. Patients with the psychoemotional strain syndrome demonstrated direct correlation of an induced initial hemiluminiscence flash value and the level of a psychological pattern MMPI by scales 2, 6, 7, 0, as well as close direct correlation of the concentration of free fatty acids with scales 6, 8, F and negative correlation with scale 3. The detection of the psychoemotional strain syndrome in CHD patients, especially in combination with high levels of lipid peroxidation and nonesterified fatty acids in the blood, may evidently serve an important criterion for defining patients at high risk of developing arrhythmias.

Arrhythmias, Cardiac↗
PubMed1985

[Change in blood rheological properties in response to graded physical exertion in patients with ischemic heart disease and persons at risk].

Blood rheologic properties were investigated before and after rationed exercise in 26 patients exhibiting risk factors unattended by atherosclerotic signs, 33 coronary patients and 26 normal subjects. Hemorheologic changes in response to bicycle ergometry were shown to depend largely on the efficiency of cardiac performance and be more marked in coronary patients and those exhibiting risk factors, as compared to normal subjects. In addition, the erythrocyte aggregation coefficient increased significantly during rationed exercise in coronary and risk-factor patients, in contrast to normal subjects. It is suggested that disorders of blood viscosity and erythrocyte aggregation, developing in part of coronary and risk-factor patients, may be conducive to the progress of atherosclerosis and coronary heart disease.

Adult↗