剖宫产术中仰卧位低血压综合征对新生儿脐血血气分析的影响

Evaluation on the Influence of Supine Hypotension Syndrome on Newborns by the Neonatal Cord Blood Gas Analysis during Caesarean Section

目的探讨剖宫产术中仰卧位低血压综合征对剖宫产新生儿脐血血气分析的影响。方法选择80例腰硬联合麻醉下行剖宫产的产妇,根据是否发生低血压将其分成Ⅰ组〔对照组,收缩压≥100mmHg(1mmHg=0.133kPa)〕和Ⅱ组(低血压组,收缩压<100mmHg),分别测定母亲动脉血气、新生儿脐动、静脉血气分析值,并评定新生儿1minApgar评分。结果取胎儿时2组产妇动脉血血气分析结果差异无统计学意义,2组脐静脉和脐动脉血血气分析值差异均有统计学意义(P<0.01),2组新生儿1minApagar评分差异无统计学意义。结论剖宫产术中低血压对新生儿不利,应积极采取措施予以纠正。

Objective To investigate the effects of supine hypotension syndrome on newborns by the neonatal cord blood gas analysis during caesarean section. Methods Eighty pregnant women who were assigned for caesarean section with combined spinal and lumber anesthesia were divided into two groups： group Ⅰ （control group, systolic blood pressure ≥100 mmHg） and group Ⅱ （hypotension group, systolic blood pressure 〈 100 mmHg）. The mothers＇arterial blood and the neonatal umbilical cord blood were taken for blood gas analysis, and the newborns＇ one minute Apgar scores were recorded. Results Mothers＇ blood gas analysis and newborns＇ one minute Apgar scores had no significant difference respectively （P 〉 0.05 ） between the two groups, umbilical cord blood gas analysis of newborns in hypotension group were significantly worse than that of the control group, the blood gas values pH, PO2, BE in hypotension group were significantly lower than those of the control group, and PCO2 in hypotension group was significantly higher than that of the control group. The number of the newborns with low umbilical artery pH in hypotension group was more than that of the control group. Conclusion Hypotension in caesarean section is detrimental to the fetus, therefore it should be corrected actively.