Reducing rebound pain severity after arthroscopic shoulder surgery under general anesthesia and interscalene block: a two-centre randomized controlled trial of pre-emptive opioid treatment compared with placebo

ConclusionHydromorphone 2 mg given six hours after interscalene block did not reduce the severity of rebound pain postoperatively compared with placebo in patients undergoing arthroscopic shoulder surgery.Study registrationClinicalTrials.gov (NCT02939209); registered 19 October 2016.
Source: Canadian Journal of Anesthesia - Category: Anesthesiology Source Type: research