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Is da Vinci Xi Better than da Vinci Si in Robotic Rectal Cancer Surgery? Comparison of the 2 Generations of da Vinci Systems

Ozben, Volkan MD; Cengiz, Turgut B.; Atasoy, Deniz MD; Bayraktar, Onur MD; Aghayeva, Afag MD; Erguner, Ilknur MD; Baca, Bilgi MD; Hamzaoglu, Ismail MD; Karahasanoglu, Tayfun MD

Surgical Laparoscopy Endoscopy & Percutaneous Techniques: October 2016 - Volume 26 - Issue 5 - p 417–423
doi: 10.1097/SLE.0000000000000320
Original Articles
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Background: We aimed to compare perioperative outcomes for procedures using the latest generation of da Vinci robot versus its previous version in rectal cancer surgery.

Patients and Methods: Fifty-three patients undergoing robotic rectal cancer surgery between January 2010 and March 2015 were included. Patients were classified into 2 groups (Xi, n=28 vs. Si, n=25) and perioperative outcomes were analyzed.

Results: The groups had significant differences including operative procedure, hybrid technique and redocking (P>0.05). In univariate analysis, the Xi group had shorter console times (265.7 vs. 317.1 min, P=0.006) and total operative times (321.6 vs. 360.4 min, P=0.04) and higher number of lymph nodes harvested (27.5 vs. 17.0, P=0.008). In multivariate analysis, Xi robot was associated with a shorter console time (odds ratio: 0.09, P=0.004) with no significant differences regarding other outcomes.

Conclusions: Both generations of da Vinci robot led to similar short-term outcomes in rectal cancer surgery, but the Xi robot allowed shorter console times.

*Department of General Surgery, Atakent Hospital

Medical Faculty

Department of General Surgery, Maslak Hospital, Acibadem University, Istanbul, Turkey

This study has been accepted as a poster presentation at the American Society of Colorectal Surgeons (ASCRS) Annual Scientific Meeting, April 30 to May 4, 2016, Los Angeles, CA.

The authors declare no conflicts of interest.

Reprints: Volkan Ozben, MD, Department of General Surgery, Atakent Hospital, Acibadem University, Halkali Merkez Mah. Turgut Ozal Bulvari, No: 16, PO Box 34303, Istanbul, Turkey (e-mail: volkanozben@yahoo.co.uk).

Received January 31, 2016

Accepted August 11, 2016

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