• B R Kuhnert, M J Kennard, and P L Linn.
• Department of Obstetrics and Gynecology, Case Western Reserve University, Cleveland, Ohio.
• Anesth. Analg. 1988 Jan 1;67(1):64-8.

AbstractReports of whether or not bupivacaine affects neonatal neurobehavior have been contradictory. The purpose of this study was to test the hypothesis that scores on the Brazelton Neonatal Behavioral Assessment Scale (BNBAS) after epidural anesthesia with bupivacaine for cesarean section would not be different than those after chloroprocaine. Furthermore, if there were any effects, it was hypothesized that they would be related to cord blood levels of the drug. Fifty-five healthy mother/infant pairs were studied. Clinical characteristics, pharmacologic data, and BNBAS scores were obtained and analyzed using statistical techniques that included t-tests, repeated measures analysis of variance, and stepwise multiple regression. The results indicate that infants in the bupivacaine group do significantly better than those in the chloroprocaine group in the orientation cluster of the BNBAS (F[1,49] = 22, P less than 0.001); this cluster reflects higher cortical functioning. Furthermore, there was improvement in the bupivacaine group in the regulation of state cluster with age, whereas there was no improvement in the chloroprocaine group (F[1,53] = 4.34, P less than 0.01). This study suggests that performance on the BNBAS after exposure to bupivacaine is better than that after exposure to chloroprocaine.

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