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目的通过产前产后对照分析胎儿单纯性肺动脉狭窄超声声像图特征,探讨轻度肺动脉狭窄产前漏诊原因及应对措施。方法总结并分析了2011年1月~2014年6月期间在我院发现17例单纯性肺动脉狭窄其产前产后的超声资料。结果产前共发现10例肺动脉狭窄,9例为中重度肺动脉狭窄,1例为轻度肺动脉狭窄。产前漏诊肺动脉狭窄7例,均为轻度肺动脉瓣狭窄。结论产前胎儿中重度肺动脉狭窄有特征性声像图改变,诊断难度不大,轻度肺动脉狭窄不易诊断,但通过观察肺动脉瓣活动、肺动脉流速及有无三尖瓣反流可以使一部分轻度肺动脉狭窄的胎儿在产前得到倾向性诊断。
Objective To analyze the causes of prenatal missed diagnosis of mild pulmonary stenosis and its countermeasures by analyzing prenatal and postnatal controls to analyze the ultrasonographic features of simple pulmonary stenosis. Methods The data of 17 cases of simple pulmonary artery stenosis in our hospital from January 2011 to June 2014 were summarized and analyzed. Results Ten cases of pulmonary stenosis were found prenatally, 9 cases were moderate-severe pulmonary stenosis and 1 case was mild pulmonary stenosis. Prenatal diagnosis of pulmonary stenosis in 7 cases, all mild pulmonary valve stenosis. Conclusions Prenatal fetus with moderate to severe pulmonary stenosis has characteristic sonographic changes, diagnosis is not difficult, mild pulmonary stenosis is not easy to diagnose, but by observing the pulmonary valve activity, pulmonary artery flow velocity and the presence or absence of tricuspid regurgitation can make some mild Premature fetuses have a prenatal diagnosis of fetal pulmonary stenosis.