医学资讯宫颈环扎术急诊环扎术
双层还是单层？联合阴道孕酮的急诊宫颈环扎术对妊娠结局的比较
By MedXY|2026年7月11日
这项多中心随机试验显示，对于宫颈明显扩张且胎膜外露的女性，双层急诊宫颈环扎术联合阴道孕酮在预防34周前早产方面并不优于单层环扎术。
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