不同产程时间与胎儿酸碱值变化的关系

来源 :中国实用妇科与产科杂志 | 被引量 : 0次 | 上传用户:l_chuanfei
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随机选择54例正常初产阴道分娩者,观察不同总产程时间及第二产程时间脐血血气及酸碱平衡变化。结果:随着总产程及第二产程时间延长,新生儿Apgar评分≤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,脐动脉血气呈轻度呼吸性酸中毒,>16~24h,脐血血气呈混合性酸中毒表现;第二产程在45min以内,脐血血气基本正常,45~90min者呈代谢性酸中毒,>90min者呈明显的混合性酸中毒。提示:为防止胎儿缺血缺氧,总产程不宜超过16h,第二产程不宜超过90min。 54 cases of normal primiparous vaginal delivery were randomly selected to observe the changes of blood gas and acid-base balance in different phases of labor and the second stage of labor. Results: With the prolonged total labor and the second stage of labor, neonatal Apgar score of ≤ 7 points have an increasing trend; total labor <8h, umbilical cord blood gas was normal, the total labor in 8 ~ 16h, umbilical arterial blood gas was mild respiratory Acidosis,> 16 ~ 24h, cord blood showed mixed acidosis performance; second stage of labor within 45min, umbilical cord blood gas was normal, 45 ~ 90min were metabolic acidosis,> 90min were significantly mixed Acidosis. Tip: To prevent fetal ischemia and hypoxia, the total production process should not exceed 16h, the second stage of labor should not exceed 90min.
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