• Marlin Dustin Richardson, Nicholas O Palmeri, Sarah A Williams, Michelle R Torok, Brent R O'Neill, Michael H Handler, and Todd C Hankinson.
• Department of Neurosurgery and.
• J Neurosurg Pediatr. 2016 Jan 1; 17 (1): 107-15.

AbstractOBJECT NSAIDs are effective perioperative analgesics. Many surgeons are reluctant to use NSAIDs perioperatively because of a theoretical increase in the risk for bleeding events. The authors assessed the effect of routine perioperative ketorolac use on intracranial hemorrhage in children undergoing a wide range of neurosurgical procedures. METHODS A retrospective single-institution analysis of 1451 neurosurgical cases was performed. Data included demographics, type of surgery, and perioperative ketorolac use. Outcomes included bleeding events requiring return to the operating room, bleeding seen on postoperative imaging, and the development of renal failure or gastrointestinal tract injury. Variables associated with both the exposure and outcomes (p < 0.20) were evaluated as potential confounders for bleeding on postoperative imaging, and multivariable logistic regression was performed. Bivariable analysis was performed for bleeding events. Odds ratios and 95% CIs were estimated. RESULTS Of the 1451 patients, 955 received ketorolac. Multivariate regression analysis demonstrated no significant association between clinically significant bleeding events (OR 0.69; 95% CI 0.15-3.1) or radiographic hemorrhage (OR 0.81; 95% CI 0.43-1.51) and the perioperative administration of ketorolac. Treatment with a medication that creates a known bleeding risk (OR 3.11; 95% CI 1.01-9.57), surgical procedure (OR 2.35; 95% CI 1.11-4.94), and craniotomy/craniectomy (OR 2.43; 95% CI 1.19-4.94) were associated with a significantly elevated risk for radiographically identified hemorrhage. CONCLUSIONS Short-term ketorolac therapy does not appear to be associated with a statistically significant increase in the risk of bleeding documented on postoperative imaging in pediatric neurosurgical patients and may be considered as part of a perioperative analgesic regimen. Although no association was found between ketorolac and clinically significant bleeding events, a larger study needs to be conducted to control for confounding factors, because of the rarity of these events.

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