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随着辅助生殖技术的发展,多胎妊娠的发生率逐年增高,其中单绒毛膜双胎(MC),因并发症发生率较高,越来越受到全世界学者的广泛关注。在单绒毛膜双胎妊娠中,早产、流产、胎儿发育异常及围产期死亡率均较高,其中胎儿结构发育异常的发生率是双绒毛膜双胎妊娠的3倍,是单胎妊娠的5倍~([1])。因此,为了改善此类胎儿的预后,采用血管阻断的选择性减胎术用于单绒毛膜双胎减
With the development of assisted reproductive technology, the incidence of multiple pregnancy increased year by year, including single chorionic twins (MC), due to a higher incidence of complications, more and more scholars worldwide attention. In monochorionic twin pregnancies, preterm birth, miscarriage, abnormal fetal development and perinatal mortality were all high, among which the incidence of fetal structural abnormalities was three times higher than that of twin chorionic twins 5 times ~ ([1]). Therefore, in order to improve the prognosis of such fetuses, selective ablation with vascular occlusion is used for single chorionic twins