A comparison of the effect of epidural, general, and no anesthesia on funic acid-base values by stage of labor and type of delivery

Jaye M. Shyken, James S. Smeltzer, L. V. Baxi, Karin J. Blakemore, Steven E. Ambrose, Roy H. Petrie

Research output: Contribution to journalArticle

Abstract

The effect of epidural anesthesia on neonatal acid-base status, before, during, and after labor, was determined by review of funic blood-gas values from 142 women with normal term pregnancies and normal fetal heart rate patterns. Funic acid-base parameters were compared by type of anesthesia when stratified by mode of delivery (vaginal, cesarean section in the active phase of labor, or elective cesarean section). Use of epidural analgesia for vaginal delivery was associated with significantly longer labor, lower umbilical arterial pH, higher arterial Pco2 and arterial bicarbonate values. In women who had cesarean section in the active phase of labor, use of epidural anesthesia was associated with significantly lower arterial and venous Po2 values when compared with women who received general anesthesia. Patients who had elective cesarean section with epidural anesthesia had funic acid-base values similar to women who had general anesthesia. Epidural analgesia-anesthesia offers no clear advantage to the uncompromised term fetus.

Original languageEnglish (US)
Pages (from-to)802-807
Number of pages6
JournalAmerican journal of obstetrics and gynecology
Volume163
Issue number3
DOIs
StatePublished - Sep 1990

Keywords

  • Acid-base balance
  • obstetric anesthesia
  • umbilical cord

ASJC Scopus subject areas

  • Obstetrics and Gynecology

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