Does the Transition from da Vinci Si to Xi Platform Improve the Short-Term Outcomes for Rectal Cancer Surgery

Karen Tung Lok Man, Lau Chi Wai and Michael Li Ka Wah Lupinski Ryszard

Department of Surgery, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong SAR, China

^*Correspondance to: Karen Tung Lok Man 

 PDF  Full Text DOI: 10.25107/2474-1647.2014

Abstract

Background: The newly introduced da Vinci Xi Surgical System was intended to address many of the shortcomings of its predecessor Si, specifically robotic arm restrictions and difficulty working in multiple quadrants. And the aim of this study was to compare the short-term outcomes of robotic rectal cancer resection with the use of da Vinci Si (TME-Si) and new da Vinci Xi (TME-Xi).Methods: From Jan 2016 to April 2018, 57 patients underwent robotic rectal cancer surgery were included. Patient were classified into 2 groups (TME-Si, n=33 versus TME-Xi, n=24). The TME-Si group was further subdivided into conventional hybrid (TME-Si-hybrid) and total robotic-single docking (TME-Si-robot) approach. Patient characteristics, perioperative clinical outcomes and complications, and pathological assessment were compared between these three groups.Results: Demographic details were similar between all three groups. TME-Si-robot group had a slight higher proportion of patient receiving neoadjuvant chemo-radiotherapy but it is not statistically significant. The only significant result is the operative time, TME-Si-robot had the longest operative time (208.4 min) followed by TME-Si-hybrid (196 min) and TME-Xi group (189.5 min), however, the results do not reach statistically significance. Other perioperative outcomes including blood loss, conversion rate and length of hospital stay were all comparable. The clinical leakage rate and early complication rates did not differ between TME-Si and TME-Xi and all can be managed conservatively. Postoperative pathological assessment including staging status, lymph nodes harvested and margin involvement were all similar between Si and Xi.Conclusion: Both da Vinci Si and Xi led to similar short term outcomes for robotic cancer surgery. However, the new generation Xi model did allow surgeon for easier docking and lesser arm collision when performing multi-quadrant surgery.

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Cite the article

Man KTL, Wai LC, Ka Wah ML. Does the Transition from da Vinci Si to Xi Platform Improve the Short-Term Outcomes for Rectal Cancer Surgery. Clin Surg. 2018; 3: 2014.