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胎盘滞留是指分娩第三产程胎盘剥离和排出过程异常,包括胎盘部分或全部粘连、剥离后滞留、胎盘植入或小块残留等。它属于产时常见并发症,其严重危害是导致产后出血及产褥感染。近年来,在产后出血病例中由于胎盘因素引起的相对增多,约占20~30%,仅次于子宫收缩乏力所致者。其中以胎盘粘连较多,追溯其原因发现与人工流产史有密切关系。1986年,全国产后出血防治协作组通过对6241例正常产妇产后24小时内阴道失血量的调查,发现产时
Placenta accreta is the third childbirth placenta detachment and discharge process abnormalities, including part or all of the placenta adhesion, retention after stripping, placenta accreta or small residue and so on. It is a common complication of the time of delivery, the serious harm is caused by postpartum hemorrhage and puerperal infection. In recent years, cases of postpartum hemorrhage due to placental factors caused by the relative increase of about 20 to 30%, second only to those caused by uterine atony. Among them, the placenta adhesion more, traced back to its causes and found that there is a close relationship with the history of induced abortion. In 1986, the National Collaborative Group on Prevention and Treatment of Postpartum Hemorrhage through 6241 cases of normal maternal postpartum within 24 hours of vaginal blood loss survey found that during labor