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作者在2542例接生中查得14例单一脐动脉,占0.55%。在14例中都曾进一步作了病理检查与临床分析。病理方面发现单一脐动脉发生的原因很多,有原来就缺少一根脐动脉的,有二根脐动脉溶合在一起的,亦有一根动脉的管腔因纤维化而被阻塞的。临床分析: Ⅰ.发生率:总的发生率为0.55%。Ⅱ.双胎:在2542例接生中共有双胎23例,在23例双胎中竟有3例为单一脐动脉,占11%。Ⅲ.对胎儿的影响:在14例单一动脉中
The authors found 14 cases of single umbilical artery in 2542 cases, accounting for 0.55%. In 14 cases have been further pathological examination and clinical analysis. Pathology found that there are many reasons for a single umbilical artery occurs, the original lack of a umbilical artery, there are two umbilical artery together, there is also an artery due to fibrosis and the lumen was blocked. Clinical Analysis: Ⅰ. Incidence: The overall incidence was 0.55%. Twins: There were 23 twins in 2542 admissions, and 3 in 23 twins were single umbilical arteries, accounting for 11%. Effect on the fetus: in 14 single arteries