Paracervical block anesthesia in obstetrics. 3. Choice of drug: fetal bradycardia following administration of lidocaine, mepivacaine, and prilocaine.

Abstract

Paracervical blocks administered during labor were performed with the use of lidocaine one per cent (356 blocks), mepivacaine one per cent (835 blocks) and prilocaine one per cent (702 blocks). Approximately half the incidence of fetal bradycardia occurred following the use of prilocaine compared to lidocaine or mepivacaine.