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The Effect of Gabapentin Premedication on Postoperative Nausea, Vomiting, and Pain in Patients on Preoperative Dexamethasone Undergoing Craniotomy for Intracranial Tumors.
MedLine Citation:
PMID:  23603887     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND:: In patients undergoing craniotomy, the incidence of postoperative nausea and vomiting (PONV) is 55% to 70% and that of moderate to severe postoperative pain is 60% to 84%. We hypothesized that gabapentin plus dexamethasone would be superior, compared with placebo and dexamethasone in reducing the incidences of PONV and pain after craniotomy. METHODS:: Patients undergoing craniotomy received either placebo (group D) or gabapentin (600 mg) (group GD) premedication orally, 2 hours before induction of anesthesia. In addition, all patients received 4 mg of intravenous dexamethasone on the morning of surgery and continued receiving it after every 8 hours. The 24-hour incidence of nausea, emesis, or PONV (nausea, emesis, or both) (primary outcome) and postoperative pain scores (secondary outcome) were analyzed with the χ test and the Wilcoxon rank-sum test as applicable. RESULTS:: A significant difference was observed between the groups in the incidence of nausea [odds ratio (OR), 0.23; 95% confidence interval (CI), 0.07, 0.80; P=0.02], PONV (OR, 0.3; 95% CI, 0.08, 0.8; P=0.02), and the requirement for antiemetics (OR, 0.30; 95% CI, 0.09, 0.9; P=0.03). The number of emetic episodes were also reduced in group GD, but this did not assume statistical significance (OR, 0.34; 95% CI, 0.10, 1.1; P=0.06). However, there was no significant difference in either the postoperative pain scores or the opioid consumption between the 2 groups. CONCLUSIONS:: A dosage of 600 mg of gabapentin plus 4 mg of dexamethasone significantly reduced the 24-hour incidence of nausea and PONV. However, there was no reduction in either the postoperative pain scores or opioid consumption.
Authors:
Satyajeet Misra; Gayatri Parthasarathi; George C Vilanilam
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-4-17
Journal Detail:
Title:  Journal of neurosurgical anesthesiology     Volume:  -     ISSN:  1537-1921     ISO Abbreviation:  J Neurosurg Anesthesiol     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-4-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8910749     Medline TA:  J Neurosurg Anesthesiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Departments of Anesthesiology and Neurosurgery, Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST), Trivandrum, Kerala, India.
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