ArticleLangenbeck's archives of surgery2019
A comparison of the da Vinci Xi vs. the da Vinci Si Surgical System for Roux-En-Y gastric bypass.
Article in Langenbeck's archives of surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed, 12 citations in OpenAlex.
- Carina™ modular robotic-assisted left lower lobectomy after neoadjuvant chemoimmunotherapy for stage IIIA squamous cell lung cancer: a case report.AME case reports · 2026Article
- Comparison of Perioperative Outcomes Using the da Vinci S, Si, X, and Xi Robotic Platforms for BABA Robotic Thyroidectomy.Medicina (Kaunas, Lithuania) · 2021Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe da Vinci Surgical System family remains the most widely used surgical robotic system for laparoscopy. Data about gastric bypass surgery with the Xi Surgical System are not available yet. We compared Roux-en-Y gastric bypass surgery performed at our institution with the da Vinci Xi and the da Vinci Si Surgical System.
methodsAll robotic gastric bypass procedures performed between January 2013 and September 2016 were analyzed retrospectively. Patient demographics and operative and postoperative outcomes up to 30 days were compared for the da Vinci Xi and Si Surgical System. Robotic costs per procedure were modeled including posts for a standard set of robotic instruments, capital investment, and yearly maintenance.
resultsOne-hundred forty-four Xi Surgical System and 195 Si Surgical System procedures were identified. Mean age (p = 0.9), gender distribution (p = 0.8), BMI (p = 0.6), and ASA scores (p > 0.5) were similar in both cohorts. Operating room times were similar in both groups (219.4 ± 58.8 vs. 227.4 ± 60.5 min for Xi vs. Si, p = 0.22). Docking times were significantly longer with the Xi compared with the Si Surgical System (9 ± 4.8 vs. 5.8 ± 4 min, p < 0.0001). There was no difference in incidence of minor (13.9 vs. 10.3%, p = 0.3) and major complications (5.6 vs. 5.1%, p = 1 for Xi vs. Si). Costs were higher for the Xi Surgical System caused by higher capital investment and yearly maintenance.
conclusionsRoux-en-Y gastric bypass surgery can be safely performed with the Xi Surgical System, while drawbacks include longer docking times and higher costs.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.