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左室右房通道的彩色多普勒超声诊断
例1.女,36岁.胸骨左缘3~4肋间闻及3级SM.超声检查(仪器为Sequoia-512 及Aloka SSD-870彩色多普勒超声诊断仪,探头频率2.5~3.5MHz)所见:左室右房增大,心尖四腔、五腔切面见室间隔膜部即三尖瓣隔瓣上方回声中断,直径10mm,CDFI见隔瓣上的右房内收缩期有一股兰色为主的偏心性花色血流束,自左室进入右房,CW测得收缩期负向湍流频谱,Vmax 500cm/s,ΔP 100mmHg.右心声学造影(5%醋酸+5%碳酸氢钠):首先右房显影,继而右室和肺动脉相继显影,但左侧房、室未见显影.超声诊断:先心病左室右房通道.手术诊断:左室右房通道合并小室缺.
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经胸二维和三维超声心动图诊断主动脉-左心室通道合并感染性心内膜炎一例
IntroductionAorto-left ventricular tunnel ( ALVT) is an extreme rare (0.001% ) congenital para-valvular communication between aorta and the left ventricle.It was first reported by Edwards and his colleagues in 1961[1].Only about 100 cases have been reported until now.We report our first case of ALVT with infective endocarditis demonstrated by two-dimensional and three-dimensional echocardiography and confirmed by surgery.
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部分房室通道合并双孔二尖瓣1例
临床资料:患儿,男,9岁.自幼发现心脏杂音,术前有心慌、气短,活动耐力较同龄人低.胸骨芹缘第二、三肋间和心尖部均有3~4/6级收缩期杂音,肺动脉第二音亢进.