双胎输血综合征 (TTTS)是双胎妊娠的严重并发症 ,最常见于单绒毛膜双羊膜双胎。超声是产前诊断的唯一依据。若无治疗 ,TTTS最终结局几乎均为极不成熟早产。目前羊水减量是应用最广的治疗方法 ,但胎儿镜下激光凝固胎盘血管交通支 (FLOC)治疗效果最好。由于需要特殊的设备和技术 ,FLOC尚难推广。 Twin transfusion syndrome (TTTS) is a serious complication of twin pregnancy, most commonly in monochorionic twins. Ultrasound is the only basis for prenatal diagnosis. Without treatment, the final TTTS outcomes are almost immature premature births. At present, amniotic fluid loss is the most widely used method of treatment, but the treatment of fetal vitreoretinal laser FLOC is the best. Due to the need for special equipment and technology, FLOC is difficult to promote.