Observational studyJournal of robotic surgery2026
Reduced-port robot radical colorectal cancer surgery a prospective trial and standardized port strategy.
Observational study in Journal of robotic surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
5 authors.
Funding
Abstract
Reduced-port robotic colorectal surgery minimizes trauma but faces technical challenges. We assessed the domestic BMR-5000 system in a standardized "3 + 1" configuration for radical colorectal cancer surgery. This prospective, single-arm trial used objective performance criteria.The surgical non-conversion rate served as the device efficacy endpoint; the primary safety endpoint was device-related Clavien-Dindo grade III or higher complications within 30 days.The technical feasibility and safety of the 3-port BMR-5000 approach served as the primary observational objective in the clinical implementation of this study. Of 60 patients, 40 underwent radical colorectal resections (23 rectal, 7 sigmoid, 6 right colectomy, 4 left colectomy). Non-conversion rate was 100% (95% exact CI 94.0-100.0), exceeding the 90% target. No device-related Clavien-Dindo grade III or higher complications occurred. Mean total operative time was 268.08 ± 84.75 min, mean estimated blood loss was 23.61 ± 27.88 mL, with no intraoperative transfusions. Mean postoperative length of stay was 9.77 ± 4.39 days. Pain scores decreased from 2.72 ± 1.58 perioperatively to 0.22 ± 0.45 by postoperative day 35. In cases requiring lymphadenectomy (n = 40), mean lymph node yield was 13.6 ± 2.97 Overall Clavien-Dindo grade I or higher complications occurred in 5 patients (8.3%); readmission, reoperation, and mortality within 30 days were 0. Reduced-port robot-assisted radical colorectal surgery with the BMR-5000 is feasible and safe, achieving 100% non-conversion, minimal blood loss, and favorable short-term outcomes. Larger comparative studies are warranted.
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