Dynamic Geometry of the Left Ventricle in Mitral Regurgitation
作者： PANTEL S. VOKONAS , RICHARD GORLIN , PETER F. COHN , MICHAEL V. HERMAN , EDMUND H. SONNENBLICK
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摘要: High-speed biplane left ventricular (LV) cineangiograms were analyzed for changes in volume, shape, and dimensions 35 patients. Ventriculographic studies ten normal subjects characterized by an ejection fraction (E.F.) of 67 ± 2% end-diastolic volume (EDV) 90 8 ml/m2 compared with results from 25 patients isolated mitral regurgitation varying severity. Patients (MR) subdivided according to whether or not the was normal. Those E.F. (70 2%) termed compensated MR (CMR) had EDV 192 7 ml/m2. decreased 34 3% decompensated (DMR) 277 17 In no significant LV noted during isovolumic phase contraction while transverse axis shortened average 5.2% change longitudinal (L). Changes geometry prior less evident group decompe...
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