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Robot-assisted laparoscopic ileal bladder augmentation: defining techniques and potential pitfalls.

Abstract：

PURPOSE:Laparoscopic bladder augmentation has been limited because of the extensive suturing required. The use of robot-assisted laparoscopic (RAL) procedures may circumvent this limitation and allow more efficient suturing. The purpose of the study is to define the techniques and the potential pitfalls in performing RAL bladder augmentation in an animal model. MATERIALS AND METHODS:Ten swine underwent RAL bladder augmentation using 20 cm of ileum. In five animals, the bowel anastomosis was performed intracorporeally. In the others, the bowel ends were externalized through one of the ports, and a free-hand bowel anastomosis was performed. The operative time was recorded. The anastomoses were evaluated for patency and leakage. RESULTS:The mean procedure time was 6 hours 44 minutes (range 5 hours 50 min-8 hours 5 min) with a rapid learning curve. We identified minor technical modifications that were helpful, such as placement of "hitch stitches," irrigation of the isolated bowel loop extracorporeally, and leaving the bladder wall attachment intact to maintain bladder suspension. Leakage at the bowel-bowel anastomosis occurred in one animal with use of a stapling technique. Because this could be a potentially fatal complication, we altered our technique to perform the bowel-bowel anastomosis outside the peritoneal cavity. Subsequently, there was no further incidences of bowel leakage, and all anastomoses were patent. The mean bowel-bowel anastomosis time was equivalent to using the two techniques. Leakage at the bowel-bladder anastomosis was seen in two animals, both occurring early in the series. CONCLUSION:RAL bladder augmentation can be safely and efficiently performed. There is a rapid learning curve. We identified minor technical modifications in techniques to help reduce operative time and potential complications. We recommend performing the bowel-bowel anastomosis outside the peritoneum to avoid the risk of leakage. Leakage at the bowel-bladder anastomosis may occur but can be managed with simple catheter drainage.

journal_name

J Endourol

journal_title

Journal of endourology

authors

Passerotti CC,Nguyen HT,Lais A,Dunning P,Harrell B,Estrada C,Lee R,Retik AB,Peters CA

doi

10.1089/end.2007.0238

subject

Has Abstract

pub_date

2008-02-01 00:00:00

pages

355-60

issue

eissn

0892-7790

issn

1557-900X

journal_volume

pub_type

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Robot-assisted laparoscopic ileal bladder augmentation: defining techniques and potential pitfalls.