[A REPORT OF 12 CASES TREATED WITH LAPAROSCOPIC LATERAL SUSPENSION (LLS) FOR PELVIC ORGAN PROLAPSE].

(Purpose) In recent years, laparoscopic sacrocolpopexy (LSC) and robot-assisted laparoscopic sacrocolpopexy (RASC) have been increasingly performed as surgical treatments for pelvic organ prolapse. These are excellent surgical procedures with low recurrence and complication rates. However, among the few complications, hemorrhage from the sacral promontory region and intervertebral discitis can be serious. Therefore, in our hospital, we perform laparoscopic lateral suspension (LLS) to lead two mesh arms to the external oblique fascia in high-risk LSC cases. (Material and methods) Study subjects included 12 patients who underwent LLS for pelvic organ prolapse performed by a single surgeon between May 2019 and July 2023. The primary endpoint was pre- and post-operative POP-Q scores for objective recurrence. Pre- and post-operative residual urine volume were used as dysuria indicators. Evaluations were performed using a questionnaire (PFDI-20) as a subjective indicator. (Results) Postoperative POP-Q scores showed significant improvement at points Ba, C, and Bp. Residual urine volume was significantly reduced from 83 ml to 2.5 ml after surgery. Pre- and post-operative subjective symptom scores were significantly improved for prolapse and urination symptoms, and no significant differences were observed for defecate symptoms. Peri-operative complications included adhesive ileus in one case, bladder injury in one case, and vaginal wall injury in one case. (Conclusion) In pelvic organ prolapse cases where it is difficult to perform LSC, LLS can be a useful surgical treatment option.