Journal
PEDIATRIC ANESTHESIA
Volume 24, Issue 12, Pages 1239-1244Publisher
WILEY-BLACKWELL
DOI: 10.1111/pan.12524
Keywords
gabapentin; pediatric; scoliosis; RCT; postoperative pain; pediatric surgery
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Funding
- Pain Management Fund of the Sick Kids Foundation
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Background Postoperative pain remains an important challenge after scoliosis surgery in children. Opioids are the mainstay of treatment, and adult studies demonstrate gabapentin as a useful adjunct to opioids in the management of postoperative pain. Method Adolescent patients undergoing idiopathic scoliosis surgery were randomized to receive a single preoperative dose of gabapentin 600mg or placebo. The primary outcome measure was total morphine consumption in mg center dot kg(-1) between 0 and 24h postoperatively. Secondary outcome measures included time to first rescue analgesia, pain intensity scores at rest and with movement, incidence of nausea, vomiting, pruritus, sedation, dizziness, presence of persisting pain symptoms, and patient satisfaction. Cumulative opioid consumption was calculated at each time point: 1, 4, 8, 12, 24, 48, and 72h. Results The gabapentin group used 0.0870.06mg center dot kg(-1) of morphine at 1h, 0.24 +/- 0.12mg center dot kg(-1) at 4h, 0.44 +/- 0.17mg center dot kg(-1) at 8h, and 1.29 +/- 0.44mg center dot kg(-1) at 24h. The placebo group used 0.121 +/- 0.06mg center dot kg(-1) of morphine at 1h, 0.35 +/- 0.16mg center dot kg(-1) at 4h, 0.56 +/- 0.27mg center dot kg(-1) at 8h, and 1.46 +/- 0.68mg center dot kg(-1) at 24h. There was no statistically significant reduction in opioid consumption in the patients receiving gabapentin. There were no significant differences in secondary outcomes. Conclusion A single preoperative dose of gabapentin did not show a significant difference in opioid consumption or pain scores in adolescents undergoing idiopathic scoliosis surgery. This study is the first pediatric randomized controlled trial to assess the effectiveness of a single dose of gabapentin on morphine consumption and analgesia following major surgery.
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