Background: Ultrasound-guided nerve blocks are effective; however, their use in the abdominal wall is reportedly associated with a risk of abdominal organ injury. Laparoscopic-guided nerve blocks are thought to be safer than ultrasound-guided nerve blocks. We evaluated the safety and effectiveness of the laparoscopic-guided rectus sheath block (LGRSB) for umbilical incisions after gynecologic laparoscopy.

Materials And Methods: A single-center, prospective, randomized controlled trial of 210 women who underwent gynecologic laparoscopy was performed at a university teaching hospital in Japan. The intervention group underwent the LGRSB with ropivacaine hydrochloride at the end of laparoscopy under general anesthesia and received regular care. The control group received only regular care without a field block. The postoperative pain score (PPS) was recorded at 6 and 12 h and 1, 2, and 3 days postoperatively. The PPS and use of postoperative analgesics (loxoprofen, diclofenac, and pentazocine) were recorded by the floor nurses, who were blinded to the patients' data.

Results: In total, 107 women in the intervention group and 101 women in the control group were analyzed. No adverse events were encountered throughout this study. There was no evidence of differences in the PPS or use of perioperative opioids and postoperative analgesics.

Conclusion: The LGRSB for umbilical incisions after laparoscopic gynecology was easy and safe. However, this method did not significantly reduce the PPS at rest or during coughing in all postoperative conditions after gynecologic laparoscopy compared with the control.

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http://dx.doi.org/10.1016/j.ijsu.2019.01.004DOI Listing

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