Abstract

This study investigates whether acute treatment with ibuprofen, acetaminophen, or both is associated with resolution of headache or reduction of headache pain at 7days post-concussion in children and youth. A secondary analysis of the Predicting and Preventing Post-concussive Problems in Pediatrics (5P) prospective cohort study was conducted. Individuals aged 5-18years with acute concussion presenting to nine Canadian pediatric emergency departments (ED) were enrolled from August 2013 to June 2015. The primary outcome was the presence of headache at 7days, measured using the Post-Concussion Symptom Inventory. The association between acute administration of ibuprofen, acetaminophen, or both and headache presence at 7days was investigated with propensity scores and adjusted multivariate regression models. 2277 (74.3%) of 3063 participants had headache upon ED presentation. Of these participants, 1543 (67.8%) received an analgesic medication before or during their ED visit [ibuprofen 754 (33.1%), acetaminophen 445 (19.5%), both 344 (15.1%); or no medication 734 (32.2%)]. Multivariate analysis pertained to 1707 participants with propensity scores based on personal characteristics and symptoms; 877 (51.4%) reported headache at 7days post-concussion. No association emerged between treatment and presence of headache at 7days [ibuprofen vs. untreated: (relative risk (RR) = 1.12 (95% CI 0.99,1.26); acetaminophen vs untreated RR = 1.02 (95% CI 0.87,1.22); both vs untreated RR = 1.02 (95% CI 0.86,1.18)]. Exposure to ibuprofen, acetaminophen, or both in the acute phase does not decrease the risk of headache at 7 days post-concussion. Non-opioid analgesics like ibuprofenor acetaminophen may be prescribed for short-term headache relief but clinicians need to be cautiouswith long-term medication overusein those whose headache symptoms persist.

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