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Intraoperative nerve staining in nerve-sparing radical hysterectomy: a pilot study
Xuyin Zhang1, Luoqi Jia1, Xiang Tao2
1Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, 128 Shen yang Road, Shanghai, 200090, China.
Archives of Gynecology and Obstetrics
|January 14, 2017
Summary
Modified leucomethylene blue (MLB) nerve staining is a safe and effective new technique for nerve location during nerve-sparing radical hysterectomy (NSRH). This method aids in preserving nerve function, leading to improved patient outcomes.
Area of Science:
- Urology
- Surgical Oncology
- Nerve Surgery
Background:
- Nerve-sparing radical hysterectomy (NSRH) aims to preserve autonomic nerves controlling bladder and bowel function.
- Accurate intraoperative nerve identification is crucial for successful NSRH and minimizing postoperative complications.
- Current nerve visualization techniques may have limitations in identifying delicate nerve structures.
Purpose of the Study:
- To assess the feasibility and effectiveness of using modified leucomethylene blue (MLB) for intraoperative nerve staining.
- To evaluate MLB's ability to accurately identify nerves during NSRH in patients with cervical cancer.
Main Methods:
- An animal model was used to microscopically confirm that MLB-stained tissues were indeed nerves.
- Ten patients undergoing NSRH for cervical cancer received intraoperative nerve staining with MLB.
- Postoperative outcomes, including time to achieve a post-void residual urine volume <100 ml and time to first defecation, were recorded.
Main Results:
- Microscopic examination in the animal model confirmed MLB selectively stains nerve fibers.
- Intraoperative staining clearly visualized minor nerves during NSRH.
- Patients achieved a post-void residual urine volume <100 ml at a median of 10.3 days, and first defecation occurred at a median of 67.7 hours.
Conclusions:
- Intraoperative nerve staining with MLB offers a novel, safe, effective, and convenient method for nerve localization during NSRH.
- This technique holds promise for improving nerve preservation and functional outcomes in patients undergoing radical hysterectomy.
