Levobupivacaine in comparison with bupivacaine in epidural block in abdominal surgery

Comparison of spinal levobupivacaie wit racemic bupivacaine for lower abdominal surgery

Ropivacaine versus bupivacaine in paediatric epidural anesthesia using a new technique

Comparison between combined spinal epidurl analgesia during labor using ropivacaine and sufentanil versus bupivacaine and sufentanil

A comparative study of the clinical maternal and fetal effects and the plasma concentrations of 0.5% extradural levobupivacaine versus racemic bupivacaine for cesarean delivery

Intrathecal fentanyl or bupivacaine combined with epidural bupivacaine for labor analgesia : Comparative study

A comparison between post-operative analgesia after intrathecal Nalbuphine + Bupivacaine and intrathecal Fentanyl + Bupivacaine after cesarean section

Comparative study between intrathecal ropivacaine alone and ropivacaine with neostigmine in discectomy

A comparative study of the effects of ropivacaine alone and in adjuvant combination with fentanyl, tramadol, ketamine and clonidine for continuous epidural labor analgesia

Preemptive epidural analgesia using either ropivacaine or bupivacaine with fentanyl in minimally invasive disectomy