Research Unit for Cerebral Development and Oximetry, Division of Neonatology, Department of Pediatrics, Medical University of Graz, Austria.
J Pediatr. 2011 Sep;159(3):404-8. doi: 10.1016/j.jpeds.2011.02.030. Epub 2011 Apr 9.
To evaluate differences in regional oxygen saturation of the brains of term infants of vaginal or cesarean deliveries.
Vaginal delivery (n = 63) and elective cesarean delivery infants were prospectively evaluated for the first 10 minutes after delivery. Peripheral arterial oxygen saturation (SpO(2)) and heart rate were measured on the right hand using pulsoximetry with near infrared spectroscopy. Regional oxygen saturation of the brain (rSO(2)brain) was measured. Fractional tissue oxygen extraction was calculated for each minute.
From 4 to 8 minutes, SpO(2) values for cesarean delivery infants were significantly lower than for vaginally delivered infants. Heart rate of the cesarean delivery infants was significantly lower throughout the whole observation period. There was no difference between groups in rSO(2)brain. Fractional tissue oxygen extraction only differed at minute 10.
Although SpO(2) and heart rate were significantly lower in cesarean-delivered infants, there were no differences in rSO(2)brain with respect to mode of delivery.
评估阴道分娩和剖宫产足月婴儿脑区域氧饱和度的差异。
对阴道分娩(n=63)和选择性剖宫产婴儿进行前瞻性评估,以评估分娩后前 10 分钟。使用近红外光谱法通过脉冲血氧定量法测量右手的外周动脉血氧饱和度(SpO2)和心率。测量脑区域氧饱和度(rSO2brain)。计算每分钟的组织氧提取分数。
从 4 分钟到 8 分钟,剖宫产婴儿的 SpO2 值明显低于阴道分娩婴儿。整个观察期间,剖宫产婴儿的心率明显较低。两组间 rSO2brain 无差异。组织氧提取分数仅在第 10 分钟时有所不同。
尽管剖宫产婴儿的 SpO2 和心率明显较低,但在分娩方式方面,rSO2brain 没有差异。