Arts H, van Eyck J, Arabin B
Department of Perinatology, Sophia Hospital, Zwolle, The Netherlands.
J Reprod Med. 1996 Oct;41(10):775-8.
Twin-twin transfusion syndrome (TTTS) occurs in 5-30% of all monochorionic pregnancies. The mortality and morbidity rates are high and therapeutic options limited.
TTTS in a monochorionic twin pregnancy was initially diagnosed by differences in amniotic fluid volume at 26 weeks. No signs of atrioventricular valve insufficiency or nonimmune hydrops fetalis were present in the recipient. Despite this, the recipient died in utero, whereupon the condition of the donor improved markedly. After spontaneous delivery at 30 weeks' gestation, coarctation of the umbilical cord at its insertion was observed in the recipient, probably secondary to severe torsion.
Unexpected obstetric events may occur in already-complicated pregnancies that are not related to a specific condition, its diagnosis or its therapy.
双胎输血综合征（TTTS）发生于所有单绒毛膜妊娠的5%至30%。其死亡率和发病率很高，治疗选择有限。
一例单绒毛膜双胎妊娠的TTTS最初在孕26周时通过羊水量差异诊断。受血儿未出现房室瓣关闭不全或非免疫性胎儿水肿的迹象。尽管如此，受血儿死于宫内，随后供血儿状况明显改善。孕30周自然分娩后，在受血儿中观察到脐带插入处缩窄，可能继发于严重扭转。
在已经复杂的妊娠中可能发生与特定疾病、其诊断或治疗无关的意外产科事件。
