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正常脐带应有两条脐动脉,一条脐静脉;如果仅有一条脐动脉就称为单脐动脉(single umbilicalartery,简称 SUA)。自1955年 B enirschke 与 Brown报道55例尸检回顾性研究中发现单脐动脉与胎儿畸
Normal umbilical cord should have two umbilical arteries, a umbilical vein; if only one umbilical artery is called single umbilicalartery (SUA). Since 1955 B enirschke and Brown reported 55 cases of autopsy retrospective study found that single umbilical artery and fetal distortions