脐动脉血pH值对评价新生儿窒息及预后的临床意义

The Guiding Sense of Umbilical Artery Blood pH in the Evaluation of Neonatal Asphyxia Diagnosis and Prognosis

目的 通过分析新生儿脐动脉血pH值、Apgar评分之间的相关性，探讨脐动脉血pH值在评价新生儿窒息及新生儿窒息预后中的作用。方法 从2007年11月～2008年5月于我院阴道分娩的新生儿中随即抽取108例正常新生儿（对照组）及51例窒息新生儿（窒息组），对其脐血血气pH值及Apgar评分进行分析，并对结果进行比较。结果 新生儿窒息的发生随脐血pH值降低而升高，正常评分的发生率随pH值降低而减少，两者呈显著性差异（P〈0．01）。结论 Apgar与新生儿窒息无显著相关性；但脐血血气分析pH值能更客观、更灵敏地反映胎儿缺血缺氧程度及新生儿出生时状态，对窒息新生儿预后有指导意义。

Objective To explore the effect of umbilical artery blood pH on the diagnosis of neonatal asphyxia and the evaluation of its prognosis. Methods Blood samples were obtained from 108 normal newborns and 51 asphyxial newborns,who were randomly chosen among newborns delivered in our hospital from november 2007 to may 2008. Umbilical artery blood gas was measured and compared with apgar rating. Results With the degression of umbilical blood pH,the incidence rate of neonatal asphyxia increased and the normal apgar rating decreased（P 〈 0.01 ） , which suggesting that there was tight relevant between umbilical blood pH and neonatal asphyxia. Conclusion Compared with apgar rating, umbilical artery blood pH could reflect the asphyxia degree of newborns more objectively andsensitively and it might play a guiding role in the prognosis of neonatal asphyxia.