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胎盘滞留和第三产程延长是终止中期妊娠最常见的并发症之一。由于滞留胎盘常需在全麻下人工剥离或刮除,且有子宫穿孔、出血、感染和粘连的危险,因此用非侵入方式完全排出胎盘很有益处。目前减少出血和缩短中期妊娠第三产程的标准方式为静脉或肌肉注射催产素。已建议使用15-甲基PGF_(2α)处理
Placental retention and extension of the third stage of labor is one of the most common complications of termination of mid-term pregnancy. Placement of the placenta often involves manual dissection or scraping under general anesthesia and the risk of uterine perforation, bleeding, infection, and adhesions. Therefore, it is beneficial to completely remove the placenta in a noninvasive manner. The current standard method of reducing bleeding and shortening the third stage of labor in the second trimester is intravenous or intramuscular oxytocin. It has been suggested to use 15-methyl PGF_ (2α) treatment