(28.56702.2380.2387.2761)

当羊水量&amp;lt;300ml时称为羊水过少,此为传统概念。但无论阴道分娩还是剖宫产都很难准确估计羊水的总量。B超诊断羊水过少的标准是羊水指数(AFI)&amp;lt;5cm或最大羊水池深度&amp;lt;2cm。近些年由于对高危妊娠的产前监测和B超技术的提高和普及,羊水过少的发生率有增加的趋势,可高达5%。...</br> generated by yvsou girl

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