摘要:胎盘植入(placental adhesion disorder,PAD)包括侵入性胎盘、植入性胎盘和穿透性胎盘,通常由胎盘绒毛入侵子宫壁的深度来分级。在胎盘增生时,胎盘绒毛不会侵犯蜕膜层,仅附着于肌壁;在胎盘植入时,入侵子宫肌层;在胎盘穿透时,子宫浆膜层被胎盘绒毛穿透,甚至邻近器官也可能被侵及。即使胎盘植入不常发生,但在过去50年间其发生率已经增长近10倍[1]。胎盘植入越来越被认为是导致产科并发症的重要原因。
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