摘要:目的:了解胎儿生长受限(FGR)时孕妇血及脐姐中镁离子(Mg^2+)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30例妊娠合并胎儿生长受限(FGR组)及31例正常孕妇(对照组),用自动化分析仪测定母血及脐血中Mg^2+水平,光镜观察两组患者的胎盘及胎儿附属物。结果:FGR组母血及脐血中Mg^2+水平与对照组相比,差异有显著性(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Mg^2+水平降低,导致胎儿-胎盘血循环阻力增高,胎盘血流灌注减少,引起缺氧缺血,胎盘病理变化明显增加。
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