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目的观察产程与脐血血气分析的关系及意义。方法用丹麦生产的ABL-330型微量自动血气分析仪进行脐A、脐V血气分析。结果产程时间不同,气血血气分析结果也不相同,脐A、脐V、血PH、PCO2、PO2、HCO3-、ABE、SBE、O2Sat等平均值,随着产程时间的不同变化也较显著。当总产程及第二产程延长时,新生儿Apgar≤7分者有增加趋势,总产程≤8h脐血血气基本正常,总产程在8-16h,脐血血气呈轻度呼吸性酸中毒,>16-24h,脐血血气呈混和性酸中毒;第二产程在45min以内,脐血血气基本正常,45-90min呈代谢性酸中毒,>90min者呈明显的混和性酸中毒。结论为防止胎儿缺血缺氧,预防新生儿缺血缺氧性脑病,总产程不宜超过16h,第二产程不宜超过90min。
Objective To observe the relationship between labor and umbilical blood gas analysis. Methods ABL-330 micro-automatic blood gas analyzer manufactured in Denmark was used to perform umbilical A and umbilical V blood gas analysis. Results The time of labor was different, blood gas and blood gas analysis results were not the same, umbilical A, umbilical V, blood PH, PCO2, PO2, HCO3-, ABE, SBE, O2Sat and other average, with different changes in labor time is also more significant. When the total labor and prolonged second stage, neonatal Apgar ≤ 7 points have an increasing trend, the total production process ≤ 8h cord blood gas was normal, the total labor in 8-16h, cord blood gas was mild respiratory acidosis,> 16-24h, cord blood gas was mixed acidosis; the second stage of labor within 45min, umbilical cord blood gas was normal, 45-90min was metabolic acidosis,> 90min was significantly mixed acidosis. Conclusion In order to prevent fetal hypoxia and hypoxia, to prevent neonatal hypoxic-ischemic encephalopathy, the total length of labor should not exceed 16 hours and the second stage of labor should not exceed 90 minutes.