title: Increased atrial contribution to ventricular filling in ischemic heart disease. Non-invasive measurement by ECG-gated radiocardiography.
abstract: 1. A total of 112 subjects, including 37 controls, 43 hypertensives, 27 IHD and 5 HCM, were tested by routine RCG and ECG gated RCG. 2. The atrial contribution to ventricualar filling (c/b ratio) was measured by ECG-gated RCG and a characteristic increase was found in IHD (37.5 +/- 7.7, mean +/- s.d.) and Hypertensives (26.5 +/- 8.0) compared to controls (16.1 +/- 5.0). 3. The increase in c/b ratio and the decrease in PDdV/dt in IHD seemed to be caused by primary abnormalities in the relaxation of the ventricle. 4. ECG-gated RCG, being non-invasive method, serves useful informations in estimating ischemic heart disease especially by a quantitative analysis of the diastolic filling.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D006332:Cardiomegaly / Q000503:physiopathology; D003201:Computers; D003327:Coronary Disease / Q000503:physiopathology*; D004562:Electrocardiography; D006325:Heart Atria / Q000503:physiopathology; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D006973:Hypertension / Q000503:physiopathology; D008297:Male; D008722:Methods; D008875:Middle Aged; D012711:Serum Albumin, Radio-Iodinated
chemical_list: D012711:Serum Albumin, Radio-Iodinated