Terumi HAYASHI, Hirokatsu FUJIMURA, Hirokazu YAMAGUCHI, Sayuki KOBAYASHI, Hirokazu HATANO, Yukiko KIMURA, Yoshihiko SAKAI, Shigenori MOROOKA, Yutaka TAKABATAKE

Department of Cardiology Dokkyo University School of Medicine

キーワード : Aortic regurgitation , Aortic valve replacement, Echocardiography, Left ventricular hypertrophy, Left ventricular mass

Pre- and postoperative noninvasive assessment of left ventricular architecture should provide the reversibility of myocardial adaptation of the left ventricle accompanying chronic volume overload. Less well documented are the associated alterations of the extent and the pattern of left ventricular architecture after valve replacement in aortic regurgitation (AR) during the follow-up period. To assess changes in left ventricular (LV) cross-sectional diameter, wall thickness, and LV mass index, echocardiographic studies were performed in 40 patients before and three-and-a-half months after aortic valve replacement (AVR) for isolated chronic AR. Diastolic LV dimension (6.7±0.9 to 4.9±0.9cm, p2, p