新生儿缺氧缺血性脑病血清铁和血清铁蛋白的动态变化及意义

目的探讨铁代谢紊乱在新生儿缺氧缺血性脑病（HIE）再灌注损伤中的作用。方法 分别测定60例HIE足月新生儿（其中轻度30例,中度20例,重度10例）入院时（日龄48h内）、日龄3～5天时血清铁（SI）及血清铁蛋白（SF）含量,并与20名健康新生儿（对照组）进行比较。结果 轻、中、重度HIE组入院时SI分别为（9.8±3.6）μmol/L、（9.7±4.3）μmol/L和（7.8±2.7）μmol/L,均低于对照组（14.5±5.0）μmol/L（P均〈0.05）;入院时轻、中、重度HIE组SF分别为（145.2±59.9）μg/L、（141.7±30.8）μg/L和（110.6±29.0）μg/L,均低于对照组（216.0±90.0）μg/L（P均〈0.05）;轻、中、重度HIE组日龄3～5天时SI分别为（18.7±4.2）μmol/L、（19.2±5.5）μmol/L和（26.1±5.6）μmol/L,均高于对照组（14.8±4.8）μmol/L（P均〈0.05）;SF分别为（314.3±93.0）μg/L、（397.1±95.3）μg/L和（546.6±98.9）μg/L,均高于对照组（218.6±75.4）μg/L（P均〈0.05）。结论 HIE患儿出生48h内循环铁降低,日龄3～5天时升高,提示铁代谢紊乱可能在HIE再灌注损伤中起一定作用。

Clinical significance of serum iron and serum ferritin in newborns with hypoxic-ischemic encephalopathy

Objective To study the effect of iron metabolic disorder in neonatal hypoxic-ischemic encephalopathy(HIE).Methods To measure the serum iron and serum ferritin levels in 60 neonates of HIE within 48 h after birth and day 3-5 after birth,which including 30 neonates in mild HIE,20 in moderate HIE and 10 in severe HIE.And 20 healthy neonates' serum iron and serum ferritin level had been measured within 48 h after birth and day 3-5 after birth as control group.Results The level of serum iron in mild,moderate,sev...