• S Pence, H Kocoglu, O Balat, and A Balat.
• Department of Physiology, University of Gaziantep, Faculty of Medicine, Gaziantep, Turkey.
• Clin Exp Obstet Gyn. 2002 Jan 1;29(3):212-4.

AbstractUmbilical arterial blood gas analysis is the most objective method to assess fetal well being at birth, is the gold standard assessment of uteroplacental function and fetal oxygenation/acid-base status at birth, and it excludes the diagnosis of birth asphyxia in approximately 80% of depressed newborns at term. This study was designed to determine the effect of the type of delivery on umbilical cord blood gases and on free radical activity together with antioxidation in the fetus. Ninety-six pregnant women between 37 and 42 weeks of gestation were included to the study and randomly assigned to the one of three groups: Group 1 (n = 40) were vaginally delivered, Group 2 (n = 26) had cesarean section with epidural anaesthesia, and Group 3 (n = 30) had cesarean section under general anaesthesia. Umbilical artery blood gas analysis was performed just after the delivery of the fetus together with melondealdehyde and glutathione. The umbilical arterial PO2 was found to be higher in Group 3, and malondealdehyde and glutathione levels were lower in newborns of Group 2. It can be concluded that cesarean section with epidural anaesthesia is safer when lipid peroxides are concerned.

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