胎儿先天性血管环的产前超声诊断分析

Evaluating the value of prenatal ultrasound diagnosis in fetal congenital vasculaRring

目的:探讨规范化超声筛查在诊断胎儿先天性血管环(CVR)中的临床意义。方法:回顾性分析产前超声筛查诊断的37例CVR的超声声像图特征,根据胎儿心血管胚胎发育特点,进行CVR的分型并随访临床情况。结果:产前超声结果显示,37例CVR胎儿中,呈“U”形血管环29例,“O”形血管环5例,“C”形血管环3例,不同的血管环形状对应不同的分型,6例并发其他心内畸形,1例合并唇腭裂畸形,2例合并染色体异常。产后随访30例,28例无症状,2例有喘鸣症状。结论:产前超声检查可以明确显示CVR及其与食管、气管空间的关系,对预后评估具有指导价值。

Objective:To assess the clinical value of standardized ultrasound screening in the diagnosis of congenital vascular ring(CVR)in fetus.Methods:Retrospective analysis was performed in 37 cases of CVRundergone prenatal ultrasound screening in our hospital concerning the ultrasonographical features.Vascular ring was classified according to the characteristics of fetal cardiovascular and embryonic development,and the clinical results were obtained through follow-up.Results:Prenatal ultrasound findings showed that,in the 37 fetuses of CVR,29 were in"U",5 in"O"and 3 in"C"shaped vascular rings,respectively.Different vascular ring shape was matched with distinctively involved region.Six cases were complicated with other intra-cardiac malformations,1 was complicated with cleft lip and palate deformities,and 2 were with chromosomal abnormalities.Follow-up in 30 fetuses after childbirth showed that 28 were asymptomatic,and 2 had wheezing symptoms.Conclusion:Prenatal ultrasound examination can clearly expose the congenital vascular ring and its spatial relationship with esophagus and trachea,which is of great significance for estimation of the prognosis in such fetuses.