Echocardiographic aortic root motion in ventricular volume overload and the effect of mitral incompetence.

European journal of cardiology Pub Date : 1979-11-01
B S Lewis, Y Hasin, R Pasternak, M S Gotsman
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Abstract

Echocardiographic aortic root motion in systole was studied in 57 patients: 13 normal subjects, 4 patients with left ventricular (LV) volume overload due to anaemia, 16 patients with mitral incompetence, 13 with aortic incompetence and 11 with mitral stenosis. In normal subjects, patients with mitral stenosis and in patients with LV volume overload, in whom the increased stroke volume was ejected forwards into the ascending aorta (anaemia, aortic incompetence) the amplitude of motion of the posterior aortic wall (vp), the aortic widening fraction (AWF) and total aortic motion (TAM) were increased. In mitral incompetence, however, despite the large increase in total LV stroke index, there was a decrease in vp (P less than 0.01), AWF (P less than 0.001) and TAM (P less than 0.001), and the decrease in aortic motion for a given stroke index was related to the mitral regurgitant fraction, indicating that aortic wall movement in systole depended predominantly on forward ejection of the LV stroke volume. Reduced echocardiographic aortic root motion and widening during systole are useful echocardiographic signs of mitral regurgitation.

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超声心动图主动脉根部运动在心室容量过载和二尖瓣功能不全的影响。
本文对57例患者的超声心动图主动脉根收缩期运动进行了研究,其中:正常13例,贫血所致左心室容量超载4例,二尖瓣功能不全16例,主动脉功能不全13例,二尖瓣狭窄11例。在正常受试者中,二尖瓣狭窄患者和左室容积超载患者,其中增加的卒中容积向前射入升主动脉(贫血,主动脉功能不全),主动脉后壁运动幅度(vp),主动脉增宽分数(AWF)和主动脉总运动(TAM)增加。然而,在二尖瓣功能不全的患者中,尽管左室总卒中指数大幅上升,但vp (P < 0.01)、AWF (P < 0.001)和TAM (P < 0.001)均有所下降,且给定卒中指数时主动脉运动的下降与二尖瓣反流分数有关,表明收缩期主动脉壁运动主要取决于左室卒中容积的前射。超声心动图主动脉根部运动减弱和收缩期主动脉根部变宽是二尖瓣返流的有用的超声心动图征象。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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