目的：探讨生长受限（FGR）胎儿其肾上腺功能是否存在异常，进一步评估胎儿肾上腺在预测FGR胎儿发生妊娠不良结局中的作用。方法：选取FGR组孕妇57例，对照胎儿组孕妇112例为研究对象，二维超声测量胎儿肾上腺皮质宽度、髓质宽度，计算肾上腺比率，对两组胎儿肾上腺皮质宽度、髓质宽度、肾上腺比率及新生儿结局进行分析。结果：FGR组孕妇胎儿肾上腺皮质宽度及肾上腺比率显著高于对照组（P<0.05），肾上腺髓质宽度对比差异无统计学意义（P>0.05）。两组孕妇胎儿肾上腺皮质和肾上腺髓质与孕龄均呈直线相关（P<0.05）。在FGR组中胎儿高肾上腺比率组发生不良结局的比率显著高于低肾上腺比率组（P<0.05）。对照胎儿组中，高肾上腺比率组与低肾上腺比率组不良妊娠结局的比率差异无统计学意义（P>0.05）。结论：妊娠晚期（30~34周） FGR组胎儿可能因肾上腺功能异常，肾上腺皮质代偿性增厚，同时显著升高的肾上腺比率可能提示妊娠不良结局的发生率会增高。

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