title: First Canadian experience with robotic single-incision pyeloplasty: Comparison with multi-incision technique.
abstract: BACKGROUND
  We compared the outcomes of single-incision, robot-assisted laparoscopic pyeloplasty vs. multiple-incision pyeloplasty using the da Vinci robotic system.
  
  
  METHODS
  We reviewed all consecutive robotic pyeloplasties by a single surgeon from January 2011 to August 2015. A total of 30 procedures were performed (16 single:14 multi-port). Two different single-port devices were compared: the GelPort (Applied Medical, Rancho Santa Margarita, CA) and the Intuitive single-site access port (Intuitive Surgical, Sunnyvale, CA).
  
  
  RESULTS
  Patient demographics were similar between the two groups. Mean operating time was similar among the single and multi-port groups (225.2 min vs. 198.9 minutes [p=0.33]). There was no significant difference in length of hospital stay in either group (86.2 hr vs. 93.2 hr [p=0.76]). There was no difference in success rates or postoperative complications among groups.
  
  
  CONCLUSIONS
  Single-port robotic pyeloplasty is non-inferior to multiple-incision robotic surgery in terms of operative times, hospitalization time, success rates, and complications. Verifying these results with larger cohorts is required prior to the wide adoption of this technique. Ongoing objective measurements of cosmesis and patient satisfaction are being evaluated.
authors.affiliation: Western University Schulich School of Medicine and Dentistry;
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Law
authors.affiliation: Department of Surgery, Division of Urology, University of Ottawa, Ottawa, ON, Canada;
authors.forename: Neal
authors.initials: N
authors.lastname: Rowe
authors.affiliation: Western University Schulich School of Medicine and Dentistry;; Department of Surgery, London Health Sciences Centre, Western University, London, ON, Canada.
authors.forename: Jason
authors.initials: J
authors.lastname: Archambault
authors.affiliation: Western University Schulich School of Medicine and Dentistry;
authors.forename: Sofia
authors.initials: S
authors.lastname: Nastis
authors.affiliation: Western University Schulich School of Medicine and Dentistry;; Department of Surgery, London Health Sciences Centre, Western University, London, ON, Canada.
authors.forename: Alp
authors.initials: A
authors.lastname: Sener
authors.affiliation: Western University Schulich School of Medicine and Dentistry;; Department of Surgery, London Health Sciences Centre, Western University, London, ON, Canada.
authors.forename: Patrick P
authors.initials: PP
authors.lastname: Luke