Korean J Anesthesiol.  1994 Mar;27(3):255-262. 10.4097/kjae.1994.27.3.255.

Acid-Base and Blood-Gas Status of Newborn Umbilical Blood according to Induction-Delivery and Uterine Incision-Delivery Intervals under General Anesthesia for Cesaeran Section

• Sohn DH
• Park CH
• Cho SK
• Lee SH

• KMID: 2040011
• DOI: http://doi.org/10.4097/kjae.1994.27.3.255

Abstract

In cesarean section under general anesthesia, inhalation anesthetics may compound fetal acidosis brought by maternal hypoxia or uteroplacental insufficiency. The chance af fetal distress may be increased with prolonged induction-delivery (ID) and uterine incision-delivery (UD) intervals in such cases. These studies were undertaken to evaluate the changes of fetal acid-base and blood-gas status according to these intervals in 58 parturients given cesarean section under general anesthesia. 58 neonates were divided into three groups according to their ID interval [group 1 (N=26): less than 6 minutes, group 2 (N=25): 6 to 10 minutes, group 3 (N=7): 10 to 15 minutes] and four groups according to their UD interval[group A (N=25): less than 60 seconds, group B (N=22): 60 to 90 seconds, group C (N=9): 90 to 120 seconds, group D (N=2): 120 to 180 seconds]. The pH, PCO2, PO2 and HCO3 values of the umbilical vein blood at delivery in the groups 1, 2, 3 divided according to ID intervals were 7.37+/-0.03, 7.36+/-0.04, 7.36+/-0.03; 39.75+/-4.83, 41.76+/- 4.03, 38.81+/-2.31; 34.35+/-745, 32.65+/-9.63, 30.89+/-11.28 (in mmHg); and 23.21+/-0.33, 23.30+/-0.26, 22.15+/-0.52 (in mEq/L), respectively, and in groups A, B, C, D divided according to UD intervals, they were 7.37+/-0.02, 7.37+/-0.02, 7.37+/-0.03, 7.36+/-0.06; 40.30+/-5.20, 40,63+/-3.11, 39.96+/-4.42, 40.03 +/-5.09; 32.35+/-8.23, 31.82+/-0.17, 35.67+/-8.35, 33.53+/-10.53 (in mmHg); and 23.14+0.26, 23.60+/-0.36, 22.88+/-0.67, 23.35+/-0.35 (in mEq/L), respectively. No significant differences in these values were present between these ID- or UD- based groups.

Keyword

Induction-delivery interval; Uterine incision-delivery interval; pH; PCO2; PO2; HCO3

MeSH Terms

Acidosis
Anesthesia, General*
Anesthetics, Inhalation
Anoxia
Cesarean Section
Female
Fetal Distress
Humans
Hydrogen-Ion Concentration
Infant, Newborn*
Pregnancy
Umbilical Veins
Anesthetics, Inhalation