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子宫破裂实际指妊娠子宫的破裂,多发生在妊娠中,晚期及分娩期。关于子宫破裂的病因,许多文献资料认为属机械性,即头盆不称引起分娩受阻,出现过强子宫收缩,导致病理性子宫收缩环,结局为发生子宫破裂。根据近几年的研究,子宫破裂不只是这种原因,大致有以下几方面的原因。1.机械性(高张性)子宫破裂此种破裂可发生在妊娠中期或晚期引产过程中,或狭窄骨盆自然分娩过程中。发生的病因是子宫收缩过强发展到强直性子宫收缩,形成病理性子宫收缩环,子宫下段肌肉被拉长变成菲薄,在外因的刺激下而破裂。常见的外因有两种:
Uterine rupture actually refers to the rupture of the uterus during pregnancy, occurred in the pregnancy, late and childbirth. On the etiology of uterine rupture, many of the literature that is mechanical, that is, the first basin caused by obstruction of unscheduled birth, there is too strong contraction of the uterus, leading to pathological uterine contractions ring, the result is the occurrence of uterine rupture. According to research in recent years, uterine rupture is not just such a reason, there are roughly the following reasons. 1 mechanical (hyper tension) uterine rupture This rupture can occur in the second trimester or late induction of labor, or narrow pelvis natural childbirth. The etiology is that the development of uterine contractions is too strong to develop ankylosing uterine contraction, the formation of pathological uterine contraction ring, the lower uterine muscle is elongated into a meager, in the external stimuli and rupture. There are two common external causes: