Abstract: Objective　To investigate the ultrasonic characteristics and pregnancy outcomes of fetal umbilical artery occlusion. Methods　A total of 13 cases of fetal umbilical artery occlusion firstly found in Guangdong Maternal and Child Health Care Hospital or referred from other hospitals from January 2016 to December 2021 were analyzed retrospectively. The pregnant women were 19-38 (28.08±6.25) years old. The prenatal ultrasound characteristics were analyzed. The fetal outcomes were followed up. Results　⑴ Eleven cases were found in late pregnancy, and 2 cases in mid-pregnancy. Two umbilical arteries were found during pregnancy and one umbilical artery was found in the later stage. ⑵ Five cases were found that the fetal meridians were less than gestational weeks, 1 case had abnormal fetal structure, 1 case had racket-shaped Placenta, 1 case had umbilical cord wrapped around neck 2 times, 1 case had saccular distension of umbilical vein in abdomen, 1 case had decreased fetal heart rate, and the other 3 cases had no abnormality. ⑶ Six pregnant women chose timely termination of pregnancy or Cesarean section within 2 days. ⑷ Eleven fetuses survived, and 2 did not. Conclusions　Fetal umbilical artery occlusion has obvious ultrasonic features. Only the time of delivery of umbilical artery occlusion is determined by the complications of premature delivery and the fetus conditions.

Key words: Ultrasound examination, Fetuses, Umbilical artery, Occlusion

摘要： 目的　探讨胎儿脐动脉闭塞的超声特征及妊娠结局。方法　回顾性分析2016年1月至2021年12月广东省妇幼保健院首次发现及外院转诊的胎儿脐动脉闭塞病例共13例，孕妇年龄19～38（28.08±6.25）岁，分析其产前超声特征，随访胎儿结局。结果　（1）11例在晚孕期发现，2例在中孕期发现。孕期产检均发现2条脐动脉，后期发现1条脐动脉。（2）5例发现胎儿经线小于孕周，1例胎儿结构异常，1例球拍状胎盘，1例脐带绕颈2周，1例胎儿脐静脉腹内段囊状扩张，1例胎心率减低，其余3例未发现其他异常。（3）6例孕妇选择及时终止妊娠或2 d内行剖宫产手术。（4）11例胎儿存活，2例未存活。结论　胎儿脐动脉闭塞具有明显的超声特征，临床仅发现脐动脉闭塞分娩时间要综合早产并发症及胎儿情况而定。

关键词: 超声检查, 胎儿, 脐动脉, 闭塞