DRUG RESEARCH, cilt.65, sa.1, ss.24-29, 2015 (ESCI)
Background: Levobupivacaine use is progressively increased for intrathecal anesthesia in transurethral resections. The aim was to determine ED50 and ED95 of intrathecal isobaric levobupivacaine by addition of 25mcg fentanyl for patients undergoing transurethral resections.