Combined spinal epidural vs epidural labour analgesia: does initial intrathecal analgesia reduce the subsequent minimum local analgesic concentration of epidural bupivacaine
Anaesthesia, 05/04/2012
Clinical Article
Patel NP et al. – Bupivacaine requirements for the second injection were increased following intrathecal analgesia by a factor of 1.45 compared with epidural analgesia.



