单探头分光光度法在评估胎儿氧合中的应用
Single-probe spectrophotometry in the assessment of fetal oxygenation.
作者信息
Egley C C, Seeds J W, Cefalo R C
机构信息
Department of Obstetrics and Gynecology, University of North Carolina School of Medicine, Chapel Hill.
出版信息
Obstet Gynecol. 1987 Nov;70(5):726-8.
Six sheep fetuses were monitored with a single-probe tissue spectrophotometer. This spectrophotometer provides continuous digital output of the index of hemoglobin that is saturated with oxygen. To vary the fetal pO2, each maternal ewe was given room air, 100% oxygen, 12% oxygen, and 100% nitrogen via rebreathing bag. Fetal venous (N = 4) or arterial (N = 2) blood was analyzed for pO2. There was excellent correlation between the index of hemoglobin saturated with oxygen and the fetal pO2. The single-probe spectrophotometer overcomes two of the technical problems encountered when a double-probe spectrophotometer is used.
使用单探头组织分光光度计对六只绵羊胎儿进行监测。该分光光度计可提供与氧气结合的血红蛋白指数的连续数字输出。为了改变胎儿的氧分压，通过再呼吸袋给每只母羊分别提供室内空气、100%氧气、12%氧气和100%氮气。对胎儿的静脉血（n = 4）或动脉血（n = 2）进行氧分压分析。与氧气结合的血红蛋白指数与胎儿氧分压之间存在极好的相关性。单探头分光光度计克服了使用双探头分光光度计时遇到的两个技术问题。
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