摘要:目的 了解胎儿生长受限(FGR)时母体血及脐血中胰岛素样生长因子-1(IGF-1)水平与胎盘病理变化的关系,以进一步探讨FGR的发病机制.方法 对40例妊娠合并胎儿生长受限组(FGR组)及40例正常孕妇组(对照组),采取母体外周静脉血及脐血,测定其中IGF-1水平;光镜观察2组胎盘绒毛发育、末梢绒毛内毛细血管个数、血管占绒毛面积、绒毛面密度.结果 与对照组相比,FGR时母体血及脐血中IGF-1水平降低,差异有统计学意义(P〈0.05); FGR组胎盘病理变化与对照组相比,差异有显著性(P〈0.05).结论 FGR时,母血及脐血中IGF-1水平降低,导致胎盘微循环形成障碍,胎盘血流灌注减少,引起缺血缺氧,胎盘病理变化明显.
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