Mehdi Hamedoun, ahmed fakri, maha sekkal, youssef halhoul, bensghir mustapha
Journal: Medpeer Publisher
ISSN: 3066-2737
Volume: 3
Issue: 11
Date of Publication: 2026/11/03
Background: Opioid-free anesthesia (OFA) is increasingly promoted to reduce opioid-related adverse effects after laparoscopic surgery. Its clinical value, however, depends on the comparator: superiority over conventional opioid-based anesthesia does not establish superiority over a contemporary multimodal opioid-sparing strategy (OSA). Further, replacing opioids with alpha-2 agonists and other co-analgesics may exchange one adverse-effect profile for another.
Objective: To critically evaluate whether complete intraoperative opioid avoidance offers incremental benefit over optimized OSA in adults undergoing laparoscopic abdominal surgery, emphasizing analgesic effectiveness, postoperative nausea and vomiting (PONV), quality of recovery, and hemodynamic safety.
Evidence synthesis: We undertook a focused narrative synthesis based on a structured PubMed search (January 2015 to November 2026), with verification of primary randomized trials, systematic reviews, and procedure-specific guidance against the original publications. We distinguished direct OFA–OSA comparisons from trials with conventional opioid-inclusive comparators and broader mixed-surgery meta-analyses. No pooled estimates or formal risk-of-bias grading were produced.
Key observations: Four particularly relevant laparoscopic trials compared OFA with a multimodal opioid-inclusive strategy. In laparoscopic colectomy (160 randomized; 155 analyzed), 48-hour oral morphine equivalents were 9 versus 14 mg (P=0.861), with more bradycardia during OFA. Following bariatric surgery (172 randomized), 24-hour morphine use was 16 versus 15 mg (P=0.183), although PONV was less frequent with OFA (37% versus 59%). In sleeve gastrectomy, a transient first-hour opioid-sparing effect did not persist to 24 hours, while ephedrine and fluid requirements increased. A cholecystectomy trial reported similar overall pain, but its published 95% confidence interval crossed the prespecified noninferiority margin, and was inconsistent with the reported variance, so noninferiority cannot be confirmed. Wider meta-analyses favor OFA for PONV more consistently than for sustained analgesia, but most comparisons do not isolate the effect of eliminating opioids from an otherwise equivalent multimodal pathway.
Conclusion: OFA is feasible in selected laparoscopic operations, but the evidence does not establish its routine superiority over well-designed OSA for postoperative pain, cumulative opioid use, or global recovery. Favoring patient- and procedure-specific multimodal analgesia, with opioids available as selective rescue and explicit attention to adverse effects of alternative agents, is more evidence-concordant than a universal opioid-free mandate.
opioid-free anesthesia; opioid-sparing anesthesia; multimodal analgesia; laparoscopic surgery; dexmedetomidine; postoperative nausea and vomiting; enhanced recovery; narrative review.
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