Articles: opioid.
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    Review Meta AnalysisDuloxetine for the reduction of opioid use in elective orthopedic surgery: a systematic review and meta-analysis.Background Duloxetine is currently approved for chronic pain management; however, despite some evidence, its utility in acute, postoperative pain remains unclear Aim of the review This systematic review and meta-analysis is to determine if duloxetine 60 mg given perioperatively, is safe and effective at reducing postoperative opioid consumption and reported pain following elective orthopedic surgery. Method CINAHL, Medline, Cochrane Central Registry for Clinical Trials, Google Scholar, and Clinicaltrials.gov were searched using a predetermined search strategy from inception to January 15, 2019. Covidence.org was used to screen, select, and extract data by two independent reviewers. ⋯ Adverse effects included an increase in insomnia with duloxetine but lower rates of nausea and vomiting. Meta-analysis revealed statistically significant [mean difference (95% CI)] lower total opioid use with duloxetine postoperatively at 24 h [- 31.9 MME (- 54.22 to - 9.6), p = 0.005], 48 h [- 30.90 MME (- 59.66 to - 2.15), p = 0.04] and overall [- 31.68 MME (- 46.62 to - 16.74), p < 0.0001]. Conclusion These results suggest that adding perioperative administration duloxetine 60 mg to a multimodal analgesia regimen within the orthopedic surgery setting significantly lowers total postoperative opioid consumption and reduces pain without significant adverse effects. 
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    Meta AnalysisEffect of Melatonin on Postoperative Pain and Perioperative Opioid Use: A Meta-analysis and Trial Sequential Analysis.We performed this meta-analysis in order to assess the effect of melatonin on postoperative pain and perioperative opioid consumption. ⋯ Given the low quality of evidence, minor degree of VAS score reduction, and inconclusive trial sequential analysis of postoperative opioid consumption, this meta-analysis neither supports nor opposes the effect of melatonin on postoperative pain. 
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    Meta AnalysisPerioperative intravenous S-ketamine for acute postoperative pain in adults: A systematic review and meta-analysis.To evaluate the effectiveness and safety of S-ketamine for pain relief and analgesic consumption in surgical patients. ⋯ Intravenous S-ketamine as an adjunct to general anesthesia is effective for assisting analgesia and decreases the intensity of pain and opioid requirements in a short period of time after surgery, but it may increase the psychotomimetic adverse event rate. Overall, the level of certainty is moderate to low. 
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    J Pain Symptom Manage · Jan 2021 Meta AnalysisEfficacy and safety of opioids in treating cancer-related dyspnea: A systematic review and meta-analysis based on randomized controlled trials.Dyspnea is one of the most distressing symptoms encountered by advanced cancer patients. In this study, we aimed to evaluate the role of opioids in the management of cancer-related dyspnea. ⋯ Our systematic review and meta-analysis indicated low quality evidence for a small positive effect of opioids in cancer-related dyspnea. Evidence for safety is insufficient as comprehensive adverse events were not adequately reported in studies. 
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    Meta AnalysisTreatments of Sexual Dysfunction in Opioid Substitution Therapy Patients: A Systematic Review and Meta-Analysis.Sexual dysfunction is a common condition in the opioid substitution therapy (OST) population. We aimed to determine the efficacy and safety of treatment for sexual dysfunction in the OST population. We searched for interventional studies from Medline, PubMed, and Scopus. ⋯ The adverse effects were minor for all agents, and no significant difference between treatment and placebo groups in randomized-controlled trials. These agents have a promising future as therapy for sexual dysfunction in the OST population. However, given the limited sample size and number of studies, further studies should be conducted to confirm the use of these agents.