超声测量中原地区汉族无孕产史正常孕龄期女性腹直肌间距正常值

Ultrasound measurement of normal range of inter-rectus distance in Han nationality women with normal gestational age and without a history of pregancy in central China

目的应用高频超声测量原籍中原地区的常驻汉族居民中无孕产史的正常孕龄期女性腹直肌间距正常值。方法连续性收集2018年3月至2019年12月于河南省人民医院行腹部超声检查的无孕产史的正常孕龄期女性561例,于平静呼吸放松状态下,测量耻骨联合上缘至剑突下的腹直肌间距最宽处距离并确定其与脐水平上缘的距离。采用95%医学参考值范围(P95%)确定腹直肌间距的正常值范围。结果研究共纳入547例未孕女性,腹直肌间距最宽处多位于脐水平上缘。腹直肌间距P95%≤29.0 mm。结论超声可以客观评价未孕女性腹直肌间距。中原地区汉族无孕产史的正常孕龄期女性腹直肌间距最宽处多位于脐水平上缘。平静状态下超声测量正常孕龄期女性腹直肌间距的临界值为29.0 mm。

Objective To measure the normal range of inter-rectus distance in Han nationality women with normal gestational age and without a history of pregancy in central China by high-frequency ultrasound.Methods A total of 561 Han nationality women with normal gestational age and without a history of pregnancy were continuously collected to perform transabdominal sonography from March 2018 to December 2019 in Henan Provincial People′s Hospital. The inter-rectus distance between superior margin of pubic symphysis and below the xiphoid process under rest condition was observed, and the widest distance between the inter-rectus distance was detected, also its distance with upper edge of umbilical level was confirmed. The 95% medical reference value(P95%) was adopted to confirm range of normal values of inter-rectus distance.Results A total of 547 non-pregnant women were included in the study. The widest distance between the linea alba was mostly at the umbilical level. P95% for the inter-rectus distance was less than or equal to 29.00 mm.Conclusions The ultrasounds can evaluate the inter-rectus distance in non-pregnant women. The widest inter-rectus distance in Han nationality women with normal gestational age and without a history of pregancy in central China is mostly at the upper edge of umbilical level. The critical point for the inter-rectus distance is 29.00 mm under rest condition.