太田 哲郎, 泉 司郎, 小林 茂雄, 吉富 裕之, 田辺 一明, 越智 弘, 石橋 豊, 島田 俊夫, 村上 林兒, 盛岡 茂文, 森山 勝利

Tetsuro OHTA, Shiro IZUMI, Shigeo KOBAYASHI, , , Hiroshi OCHI, Yutaka ISHIBASHI, Toshio SHIMADA, Rinji MURAKAMI, Shigefumi MORIOKA, Katsutoshi MORIYAMA

島根医科大学第4内科

The Fourth Department of Internal Medicine, Shimane Medical University

キーワード : Venous return, Dilated cardiomyopathy, Superior vena cava, Pulsed Doppler echocardiography, Right ventricle

We studied superior vena cave flow and right ventricular inflow in 13 patients with dilated cardiomyopathy accompanied by arterial fibrillation (DCM) , and 28 patients with lone atrial fibrillation (LAF) using pulsed Doppler and echocardiography. The ratio of systolic to diastolic peak velocity in superior vena cava flow (S/D), the deceleration half time of right ventricular inflow (DHT), the tricuspid annular systolic excursion (TASE), and the right ventricular diastolic dimension (RVDd) were measured. S/D was higher in patients with DCM than in patients with LAF (0.83±0.34 versus 0.56±0.11, p