产时吸氧对母、胎血气与酸碱平衡影响的研究

A STUDY OF THE EFFECT OF OXYGEN INHALATION DURING LABOR ON THE BLOOD GAS DETERMINATION AND ACID BASE BALANCE OF THE CHILD

本文对52例临产妇、间断吸氧至分娩结束。于胎儿娩出前,分别取母动脉血和胎头皮血,于胎儿娩出即刻取脐动、静脉血进行血气分析测定。并以同期34例临产妇做对照观察。发现:pH值、PO_2、HCO_3^-、TCO_2、SBC值等,观察组较对照组有显著差异变化。观察组母动脉血,胎头皮血混合性酸碱失衡较对照组明显减少。观察组羊水清亮者,较对照组明显增多(P<0.01)。观察组新生儿窒息率较对照组显著减少(P<0.05)。提示:产时间断吸氧,有利于增加胎血PO_2,对预防胎儿缺氧有积极作用,

A study of the blood gas analysis of parturient women was made.Before delivery of the child, a scalo blood of the child and an arterialblood specimen of the mother were taken. Immediately after delivery ablood specimen of the cord artery and vein was taken. Result: (1) Therewas a decrease of pH value in the mother's and the child's scalp blood(P<0.01)in the observation group in comparison with that of the control group. Whilethe pH value of the cord artery and vein of the observation group showed anapparent rise in comparison with that of the control group (P<0.01). (2)PO_2, HCO^-_3, PCO_2, SBC value: There was an apparent rise in the observationgroup (P<0.01) in comparison with that of the control group. (3) There wasa marked decrease in the rate of asphixation of the child in the observating group(1.92%) in comparison with that of the control group (11.77%).