title: [Intracardiac hemodynamics in heart rhythm acceleration and the development of an angina attack].
abstract: Fifteen patients were examined by echocardiography during the atrial stimulation test. The patients were divided into 2 groups: the main group of 8 patients with ischemic heart disease and a control group of 7 persons wit a negative bicycle ergometry test and no changes in the coronary arteries. It is shown that acceleration of the cardiac rhythm leads to a proportional decrease in the left-ventricular end-diastolic diameter and increase in Vcf and diastolic thickness of the myocardium; the ejection fractions, minute volume and index of left-ventricular activity do not change. It was revealed that the development of myocardial ischemia leads to myocardial asynergy, decrease in the ejection fraction. Vcf, index of left-ventricular activity and minute volume and to an increase in the end-diastolic diameter of the left ventricle, which precede the ECG changes and the development of an angina attack.
mesh_terms: D000293:Adolescent; D000328:Adult; D000787:Angina Pectoris / Q000503:physiopathology*; D003327:Coronary Disease / Q000503:physiopathology; D004452:Echocardiography; D006321:Heart / Q000503:physiopathology*; D006325:Heart Atria / Q000503:physiopathology; D006334:Heart Function Tests; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D013610:Tachycardia / Q000503:physiopathology*
vernacular_title: Vnutriserdechnaia gemodinamika pri uchashchenii serdechnogo ritma i razvitii angioznogo pristupa.