Efficacy and Safety of Intra-operative Dual Laparoscopy and Neo-rectoscopy for Bowel Endometriosis: The LUMEN-01 Trial

The goal of this prospective, multicenter, randomized controlled trial is to compare the clinical efficacy and safety of intra-operative dual laparoscopy and neo-rectoscopy (IDLnR) versus conventional laparoscopy (CL) in patients with bowel endometriosis (BE) undergoing surgery. The primary objective is to assess differences in postoperative bowel function improvement at 6 months between the two groups. The main questions it aims to answer are: Is there a significant difference in postoperative bowel function (primary endpoint) at 6 months postoperatively between IDLnR and CL groups? Do the two groups differ in secondary outcomes, including efficacy indicators (LARS score/cure rate/improvement rate, CRADI-8, Wexner score, GIQLI, EHP-30, VAS pain reduction) and safety indicators (30-day severe complications, antibiotic use intensity, hospital stay \>7 days)? Researchers will randomize BE surgical patients to IDLnR or CL groups, then compare the above primary and secondary endpoints to evaluate IDLnR's clinical value. Participants will undergo either IDLnR or CL surgery for BE lesions, and be followed up to assess bowel function, quality of life, pain, and safety outcomes as specified. This study will fill evidence gaps for IDLnR in BE surgery, support its standardized application, optimize BE treatment strategies, and aim for complete lesion resection, preserved intestinal function, and improved long-term patient quality of life.