Feasibility and perioperative outcomes of Senhance-assisted robotic cholecystectomy: a single-arm meta-analysis

The Senhance Digital Laparoscopy System (SDLS) is an emerging robotic platform with distinctive features, including haptic feedback, eye-tracking camera control, and reusable instruments compatible with standard laparoscopic trocars. However, comprehensive evidence regarding its application in cholecystectomy remains limited. This single-arm meta-analysis was designed to consolidate the current evidence by quantitatively synthesizing key perioperative outcomes-including operative time, console time, docking time, surgical success rate, and postoperative length of hospital stay-to provide a comprehensive, evidence-based assessment of the feasibility and perioperative outcomes of Senhance-assisted robotic cholecystectomy.

To identify potentially relevant publications, the following electronic databases were systematically queried from their respective inception dates through August 1, 2026: Web of Science, Embase, PubMed, and Cochrane Library. Eligible studies were those reporting perioperative outcomes of Senhance-assisted cholecystectomy. The analysis focused on operative time and console time as primary measures, with docking time, hospital stay, and surgical success rate as secondary measures. all meta-analyses were performed using random-effects models. Subgroup analyses were performed based on economic level, study design, and sample size. Assessment of study quality was conducted using the Joanna Briggs Institute (JBI) case series Critical Appraisal Checklist.

Eight studies comprising 198 patients were included. The pooled operative time was 81.48 min (95% CI: 78.52 to 84.44; I² = 0.0%), console time was 39.35 min (95% CI: 33.29 to 45.41; I² = 90.0%), docking time was 11.54 min (95% CI: 8.37 to 14.70; I² = 96.2%), and length of hospital stay was 1.89 days (95% CI: 0.81 to 2.97; I² = 97.9%). The pooled surgical success rate was 96% (95% CI: 90% to 99%; I² = 50.7%). Subgroup analysis for docking time revealed a significant difference by sample size (p = 0.038), while console time showed no significant differences across subgroups. Sensitivity analysis demonstrated the robustness of the findings for operative time, console time, docking time, and surgical success rate, whereas the length of hospital stay was significantly influenced by a single study (Sasaki, 2023). All included studies were rated as high quality with low risk of bias.

The findings of this single-arm meta-analysis indicate that Senhance-assisted robotic cholecystectomy is both safe and feasible, demonstrating a high surgical success rate, acceptable operative times, and a short postoperative hospital stay. The console time is comparable to that of conventional laparoscopic cholecystectomy, while docking time remains a modifiable factor that can be optimized through experience and team training. However, the heterogeneity in length of hospital stay across countries highlights the influence of different healthcare policies. Future prospective, multicenter comparative studies are warranted to further define the role of this platform in minimally invasive surgery.