最新主动脉夹层动脉瘤主动脉夹层分离2-药学医学精品资料.ppt

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1、最新主动脉夹层动脉瘤主动脉夹层分离2-药学医学精品资料病因高血压2/3年龄》40马凡氏综合征青壮年家族史Marfan综合征遗传学特征微纤维原基因突变（15q21.1）骨骼异常臂指间距超过身长，下部量超过上部量，蜘蛛脚。心血管改变AAO扩张》45MM，AR眼部改变晶状体向上脱位，角膜扁平皮肤表现胸腹臀膨胀性萎缩纹肺部表现脓胸、气胸（结缔组织活力缺失）DeBeKey分型I型夹层起始于升主动脉并延伸到降主动脉。II型夹层局限于升主动脉。III型夹层起始于降主动脉，并向远心端延伸。超声心动图表现主动脉内径增

2、宽，多大于40mm。剥脱的内膜将主动脉分为真腔和假腔，真腔多狭小，假腔一般较大。剥脱的内膜在真假腔间摆动，应注意寻找破裂口的位置。夹层累及主动脉瓣时，引起主动脉瓣返流，左心室扩大临床价值与存在问题超声床旁进行，简便安全，无创敏感性特异性ECHO97%100%ANGIO78%95%CT80%100%MRI区别真腔与假腔识别入口和再入口判断主动脉夹层病变范围及类型判断预后判断假腔中有无血栓形成术后随访H6E3B+y(u%r#oWlTiQeNbK8Gz)w&t!pYmVjRgOcL9I6E3B0y(v%r

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