Dexmedetomidine infusion as an analgesic adjuvant during laparoscopic ?holecystectomy: a randomized controlled study.
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ABSTRACT: BACKGROUND:Dexmedetomidine (DEX) has sedative, sympatholytic and analgesic effects and might be beneficial if used as an adjuvant to: improve analgesia; modulate haemodynamic responses to intubation and pneumoperitoneum and; reduce the number of opioid-associated adverse events. The aim of this study was to evaluate the efficacy and safety of DEX infusion during elective laparoscopic cholecystectomy (LC). METHODS:A randomized, single-centre, parallel-group, placebo-controlled study was carried out between May 2016 and June 2017. Adult patients (18-79 years) with American Society of Anesthesiology (ASA) physical status I-II were randomly assigned to 0.5 ?g/kg/h DEX infusion from induction of anaesthesia to extubation (Group D; n?=?30) or normal saline infusion (Group C; n?=?30). The primary efficacy outcomes were postoperative morphine consumption. Secondary efficacy outcomes included: time to first use of rescue analgesia; postoperative morphine consumption; intraoperative fentanyl consumption; time from end of surgery to extubation; lengths of intensive care unit (ICU) and general ward stay; degree of postoperative pain 3, 6, 12 and 24 h after surgery; incidence of persistent post-surgical pain. RESULTS:DEX infusion was associated with a decrease in postoperative morphine consumption (p?=?0.001), lower incidence of severe postoperative pain (odds ratio [OR] 9, 95% confidence interval [CI] 1.1-77, p?=?0.04) and significantly longer time to first use of rescue analgesia (p?=?0.001). Group D also had significantly lower fentanyl consumption both intraoperatively (p?=?0.001) and in the time from end of surgery to extubation (p?=?0.001) plus decreased incidence of persistent post-surgical pain (OR 14.5, 95% CI 1.7-122, p?=?0.005). The incidence of postoperative nausea and vomiting was lower in Group D than Group C (OR 5, 95% CI 1.1-26, p?=?0.005). Median pain intensity did not differ between the groups 3, 6, 12 or 24 h after surgery and there were no inter-group differences in the lengths of ICU stay or overall hospital stay between groups. The incidence of hypertension was significantly higher in Group C (OR 13.8, 95% CI 4-48, p?
SUBMITTER: Bielka K
PROVIDER: S-EPMC5910570 | biostudies-literature | 2018 Apr
REPOSITORIES: biostudies-literature
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