Journal of basic and clinical physiology and pharmacology
-
J Basic Clin Physiol Pharmacol · Jan 2017
Randomized Controlled Trial Comparative StudyComparative pre-emptive analgesic efficacy study of novel antiepileptic agents gabapentin, lamotrigine and topiramate in patients undergoing major surgeries at a tertiary care hospital: a randomized double blind clinical trial.
Surgical injury leads to postoperative pain hypersensitivity preceded by central nervous sensitization, due to lowered pain threshold in peripheral nociceptors and increased excitability of the spinal neurons. Pre-emptive analgesia is intended to decrease pain perception and overall analgesic need by use of drug regimen seizing central nervous system sensitization before exposure to painful stimuli. Earlier, few studies support pre-emptive analgesic efficacy of novel antiepileptic agent gabapentin. But topiramate and lamotrigine though proven analgesic in animal models of chronic pain and clinical studies of gabapentin resistant neuropathic pain; literature search revealed scarce data on its pre-emptive analgesic efficacy. The present study is designed to study and compare the pre-emptive analgesic efficacy of lamotrigine, topiramate and gabapentin (as control) in postoperative pain control. ⋯ Study results are strongly suggestive of pre-emptive analgesic efficacy of single oral dose lamotrigine comparable to gabapentin and superior to topiramate in postoperative pain control.