Abstract
Background
Outcome data on robotic major hepatectomy are lacking. This study was undertaken to compare robotic vs. ‘open’ major hepatectomy utilizing patient propensity score matching (PSM).
Methods
With institutional review board approval, we prospectively followed 183 consecutive patients who underwent robotic or ‘open’ major hepatectomy, defined as removal of three or more Couinaud segments. 42 patients who underwent ‘open’ approach were matched with 42 patients who underwent robotic approach. The criteria for PSM were age, resection type, tumor size, tumor type, and BMI. Survival was individually stratified for hepatocellular carcinoma (HCC), intrahepatic cholangiocarcinoma (IHCC), and colorectal liver metastases (CLM). The data are presented as: median (mean ± SD).
Results
Operative duration for the robotic approach was 293 (302 ± 131.5) vs. 280 (300 ± 115.6) minutes for the ‘open’ approach (p = NS). Estimated Blood Loss (EBL) was 200 (239 ± 183.6) vs. 300 (491 ± 577.1) ml (p = 0.01). There were zero postoperative complications with a Clavien–Dindo classification ≥ III for the robotic approach and three for the ‘open’ approach (p = NS). ICU length of stay (LOS) was 1 (1 ± 0) vs. 2 (3 ± 2.0) days (p = 0.0001) and overall LOS was 4 (4 ± 3.3) vs. 6 (6 ± 2.7) days (p = 0.003). In terms of long-term oncological outcomes, overall survival was similar for patients with IHCC and CLM regardless of the approach. However, patients with HCC who underwent robotic resection lived significantly longer (p = 0.05).
Conclusion
Utilizing propensity score matched analysis, the robotic approach was associated with a lower EBL, shorter ICU LOS, and shorter overall LOS while maintaining similar operative duration and promoting survival in patients with HCC. We believe that the robotic approach is safe and efficacious and should be considered a preferred alternative approach for major hepatectomy.
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Iswanto Sucandy, Emanuel Shapera, Cameron C. Syblis, Kaitlyn Crespo, Valerie A. Przetocki: Nothing to disclose. Sharona B. Ross: Reports personal fees and non-financial support from Intuitive Surgical Incorporated, outside the submitted work. Alexander S. Rosemurgy: Reports personal fees and non-financial support from Intuitive Surgical Incorporated, outside the submitted work.
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Sucandy, I., Shapera, E., Syblis, C.C. et al. Propensity score matched comparison of robotic and open major hepatectomy for malignant liver tumors. Surg Endosc 36, 6724–6732 (2022). https://doi.org/10.1007/s00464-021-08948-3
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DOI: https://doi.org/10.1007/s00464-021-08948-3