PubMed Health⌕ Search

Biomedical subjects

G Urumov

Publications and source records attributed to G Urumov.

43 records · Page 3Linked to original sources
PubMed1977

[Atypical hypoxic changes in the T wave].

Three patients with clinical diagnosis of myocardial infarction are described, whose cardiograms are characterized by a transitory positivation of the negative T-waves. The confrontation of those changes with the clinical picture reveals that the transitory positivation of the T-wave coincides with the clinical and paraclinical signs of intensification of the myocardial hypoxia (pain, collapse, enzyme positivation). The possible electrophysiological mechanisms are discussed that could explain the transitory positivation of the negative T-waves, as a manifestation of the intensified ischemia.

Acute Disease↗
PubMed1975

[Comparative electro- and vectorcardiographic study of patients with systolic overloading in the left ventricle].

The potentialities of the two methods for hemodynamic disturbance degree assessment are studied in 80 patients with arterial hypertension (16-first stage, 59-second and 5-third). Five electrocardiographic and five vectorcardiographic indices are confronted to the systolic pressure in brachial artery. The electrocardiographic indices sensitivity is in the range of 25 to 62% and the sensitivity of vectorcardiographic-from 14 to 50%. The correlation dependence level of the same indices (in 30 patients) is from 0, 37 to 0, 52 for ECG and from 0, 11 to 0, 60 for VCG. Statistically significant differences of the "diagnostic" potentialities of both methods were not established as well.

Electrocardiography↗
PubMed1975

[Possibilities of a corrected orthogonal vectorcardiogram (Frank) in the hemodynamically overloaded ventricular musculature].

The possibilities of the orthogonal corrected Frank system to establish the degree of the hemodynamic disturbance are analyzed in 220 cardiac patients. The sensitivity of the vcg-indices in patients with right-ventricle loading reaches up to 72 per cent and in patients with-left-ventricle-up to 100 per cent. The highest correlation coefficient in patients with right ventricle loading is 0.73 and in patients with left-tventricle-0.65 (p less than 0.01). the inferior diagnostic value of vcg-indices in patients with aquired heart defects is stressed. The value of the separate vcg-indices is discussed.

Bulgaria↗