[Apical cardiogram during bicycle ergometry as a method of assessing the contractile capacity of the myocardium in ishemic heart disease].
The authors appraise a number of indices of left-ventricular apex cardiogram recorded at rest and after submaximum or threshold physical load in 52 healthy males and in 122 patients with ischemic heart disease. It was found that after physical load the electromechanic interval of the apex cardiogram of patients with ischemic heart disease is prolonged, the period of rapid filling is shortened and the period of slow filling of the left ventricle is prolonged with a general decrease in the whole diastole as compared to that which should be. An increase in the ratio of the atrial wave amplitude to the total systolic wave, which is clearly demonstrated after physical load, is one of the earliest signs of cardiodynamic disorders recorded by apex-cardiography. A parallelism was established between the degree of the pathological changes on the apex cardiogram, physical load tolerance and the pronounced character of the clinical manifestation of ischemic heart disease.
D000328:Adult; D000787:Angina Pectoris / Q000175:diagnosis; D003327:Coronary Disease / Q000175:diagnosis*; D005080:Exercise Test; D006801:Humans; D007702:Kinetocardiography; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D009203:Myocardial Infarction / Q000175:diagnosis; D012146:Rest; D013997:Time Factors
Apikal'naia kardiogramma v usloviiakh veloérgometrii kak metod otsenki sokratitel'noĭ sposobnosti miokarda u bol'nykh ishemicheskoĭ bolezn'iu serdtsa.