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儿童左心室正常大小是多少

更新时间: 2020-11-04 00:00:00     

小儿心脏在胸腔的位置随年龄而改变,新生儿和小于两岁婴幼儿的心脏多呈横位,心尖搏动位于左侧第四肋间锁骨中线外侧,心尖部主要为右心室。以后心脏逐渐由横位转为斜位,3-7岁的心尖搏动已位于左侧第五肋间、锁骨中线处,左心室形成心尖部。一般情况下,正常三岁小儿左心室的平均大小约为30.8mm。

关键词: 儿童 心室 正常 大小 多少

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