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  • Title: Prophylactic gabapentin for prevention of postoperative nausea and vomiting in patients undergoing laparoscopic cholecystectomy: a randomized, double-blind, placebo-controlled study.
    Author: Pandey CK, Priye S, Ambesh SP, Singh S, Singh U, Singh PK.
    Journal: J Postgrad Med; 2006; 52(2):97-100. PubMed ID: 16679671.
    Abstract:
    BACKGROUND: Gabapentin is an antiepileptic drug. Its antiemetic effect is demonstrated in chemotherapy-induced acute and delayed onset of nausea and vomiting in breast cancer patients. AIM: To evaluate the antiemetic effect of gabapentin on incidence and severity of postoperative nausea and vomiting in laparoscopic cholecystectomy. SETTINGS AND DESIGN: Double-blind, randomized, placebo-controlled study. MATERIALS AND METHODS: Two hundred and fifty patients of ASA physical status I and II, scheduled for laparoscopic cholecystectomy were randomly assigned into two equal groups to receive 600 mg gabapentin or matching placebo two hours before surgery. Standard anaesthesia technique was used. Fentanyl was used as rescue postoperative analgesic. Ondansetron 4 mg was used intravenously as rescue medication for emesis. The total number of patients who had nausea or vomiting, and its severity and total fentanyl consumption in the first 24 hours were recorded. STATISTICAL ANALYSIS: "Z test" was used to test the significance of severity of post-operative nausea and vomiting between groups. Fentanyl consumed in each group (Mean+/-SD) within 24 hrs was compared using student t test. P value < 0.05 was considered significant. RESULTS: There were no demographic difference between the two groups. Incidence of post-operative nausea and vomiting within 24 hrs after laparoscopic cholecystectomy was significantly lower in gabapentin group (46/125) than in the placebo group (75/125) (37.8% vs 60%; P =0.04). There was a significantly decreased fentanyl consumption in gabapentin group (221.2+/-92.4 microg) as compared to placebo group (505.9+/-82.0 microg; P =0.01). CONCLUSION: Gabapentin effectively suppresses nausea and vomiting in laparoscopic cholecystectomy and post-operative rescue analgesic requirement.
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