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Randomized Controlled Trial
. 2010 May 1;110(5):1393-8.
doi: 10.1213/ANE.0b013e3181d41dc2.

Gabapentin Use in Pediatric Spinal Fusion Patients: A Randomized, Double-Blind, Controlled Trial

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Randomized Controlled Trial

Gabapentin Use in Pediatric Spinal Fusion Patients: A Randomized, Double-Blind, Controlled Trial

Lynn M Rusy et al. Anesth Analg. .

Abstract

Background: Gabapentin has opioid-sparing effects in adult surgical patients, but no reported studies have involved children and adolescents. In a double-blind, randomized, controlled trial, we examined whether gabapentin decreases postoperative opioid consumption for pediatric spinal fusion patients with idiopathic scoliosis.

Methods: Patients, aged 9 to 18 years, received preoperative gabapentin (15 mg/kg, treatment) or placebo. Anesthesia was standardized. After surgery, all patients received standardized patient-controlled analgesia opioid and continued on either gabapentin (5 mg/kg) or placebo 3 times per day for 5 days. Opioid use was calculated in mg/kg/time intervals. Pain scores and opioid side effects were recorded.

Results: Data from 59 patients (30 placebo and 29 gabapentin) did not differ in demographics. Total morphine consumption (mg/kg/h +/- SD) was significantly lower in the gabapentin group in the recovery room (0.044 +/- 0.017 vs 0.064 +/- 0.031, P = 0.003), postoperative day 1 (0.046 +/- 0.016 vs 0.055 +/- 0.017, P = 0.051), and postoperative day 2 (0.036 +/- 0.016 vs 0.047 +/- 0.019, P = 0.018). In addition, gabapentin significantly reduced first pain scores in the recovery room (2.5 +/- 2.8 vs 6.0 +/- 2.4, P < 0.001) and the morning after surgery (3.2 +/- 2.6 vs 5.0 +/- 2.2, P < 0.05), but otherwise pain scores were not significantly different. There were no differences in opioid-related side effects over the course of the study.

Conclusion: Perioperative oral gabapentin reduced the amount of morphine used for postoperative pain after spinal fusion surgery, but not overall opioid-related side effects. Initial pain scores were lower in the treatment group. Perioperative use of gabapentin seems to be an effective adjunct to improve pain control in the early stages of recovery in children and adolescents undergoing spinal fusion.

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