Preemptive epidural neostigmine morphine versus epidural morphine in lumbar spine surgery : Comparative study

Pre-emptive analgesia with morphine: Comparative study between intramuscular, subarachnoid and epidural routes

Gabapentin in acute postoperative pain management

A comparison of the preemptive analgesic effect of small dose of ketamine versus magnesium sulfate on parturient undergoing cesarean section under general anesthesia

The effect of the preemptive use of two NMDA receptor antagonists: Dextromethorphan and ketamine on neuroactive pain mediators and postoperative opioid consumption

Pre-emptive analgesia with Tramadol: Comparative study between intramuscular, intravenous and epidural routes

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

Analgesic and cytokine suppression effects of S (+) ketamine in cancer bladder surgery

Prospective randomized study of the effect of a continuous preperitoneal infusion of fentanyl and bupivacaine after midline laparotomy on postoperative outcomes

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