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<p>The acetaminophen–nefopam combination has not been investigated as a preventive analgesic strategy for robot-assisted urological surgery. Here, we evaluated whether their administration could reduce postoperative pain and opioid consumption in such patients. This retrospective cohort study analyzed adults who underwent robot-assisted urological surgery from April 2023 to March 2025 at a single tertiary academic center. Patients received conventional anesthetic management (conventional group) or preventive acetaminophen (1000&#xa0;mg) and nefopam (20&#xa0;mg) at robotic system de-docking (preventive group). Propensity score matching (1:1) was performed using the ASA physical performance class, surgery type, surgeon, and procedure duration. Pain was assessed using an 11-point numeric rating scale. The primary outcome was pain severity distribution upon postanesthesia care unit (PACU) arrival. After matching, 340 patients (170 per group) were analyzed. The preventive group exhibited higher proportions of patients with no/mild pain (57.6% vs. 29.4%, <i>P</i> &lt; 0.001) and lower proportions with moderate pain (20.0% vs. 40.6%, <i>P</i> &lt; 0.001) compared to the conventional group. Opioid-free analgesia rates were higher in the preventive group during PACU stay (36.5% vs. 16.5%, <i>P</i> &lt; 0.001) and in the first 24&#xa0;h (30.6% vs. 13.5%, <i>P</i> &lt; 0.001). Rescue opioid consumption was lower in the preventive group during the PACU (2.5 vs. 7.5&#xa0;mg morphine equivalent, <i>P</i> &lt; 0.001) and 24-h periods (5 vs. 10&#xa0;mg, <i>P</i> &lt; 0.001). Their PACU stay was also shorter (34 vs. 40.5&#xa0;min, <i>P</i> &lt; 0.001). Preventive acetaminophen–nefopam administration was associated with significantly lower postoperative pain severity and opioid requirements and faster recovery after robot-assisted urological surgery.</p>

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Effect of combined acetaminophen and nefopam on postoperative pain in patients undergoing robot-assisted urological surgery: a retrospective propensity score-matched analysis

  • 期刊论文

  • 发表日期：

    2026年1月31日

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  • Soowon Lee,
  • Jung-Hee Ryu,
  • Young-Tae Jeon,
  • Ah-Young Oh,
  • Chang-Hoon Koo

摘要

The acetaminophen–nefopam combination has not been investigated as a preventive analgesic strategy for robot-assisted urological surgery. Here, we evaluated whether their administration could reduce postoperative pain and opioid consumption in such patients. This retrospective cohort study analyzed adults who underwent robot-assisted urological surgery from April 2023 to March 2025 at a single tertiary academic center. Patients received conventional anesthetic management (conventional group) or preventive acetaminophen (1000 mg) and nefopam (20 mg) at robotic system de-docking (preventive group). Propensity score matching (1:1) was performed using the ASA physical performance class, surgery type, surgeon, and procedure duration. Pain was assessed using an 11-point numeric rating scale. The primary outcome was pain severity distribution upon postanesthesia care unit (PACU) arrival. After matching, 340 patients (170 per group) were analyzed. The preventive group exhibited higher proportions of patients with no/mild pain (57.6% vs. 29.4%, P < 0.001) and lower proportions with moderate pain (20.0% vs. 40.6%, P < 0.001) compared to the conventional group. Opioid-free analgesia rates were higher in the preventive group during PACU stay (36.5% vs. 16.5%, P < 0.001) and in the first 24 h (30.6% vs. 13.5%, P < 0.001). Rescue opioid consumption was lower in the preventive group during the PACU (2.5 vs. 7.5 mg morphine equivalent, P < 0.001) and 24-h periods (5 vs. 10 mg, P < 0.001). Their PACU stay was also shorter (34 vs. 40.5 min, P < 0.001). Preventive acetaminophen–nefopam administration was associated with significantly lower postoperative pain severity and opioid requirements and faster recovery after robot-assisted urological surgery.