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Updated: Aug 8, 2025

Urethral Stricture Induction Followed by Buccal Mucosa Graft Urethroplasty in a Rat Model
Published on: April 28, 2023
Laparoscopic redo pyeloplasty with a buccal mucosal graft
Nobuhiko Shimizu1, Yukio Naya1, Keita Sekine1
1Department of Urology Teikyo University Chiba Medical Center Ichihara Chiba Japan.
Introduction:
Redo pyeloplasty can be difficult due to scar tissue or fibrosis. Ureteral reconstruction with a buccal mucosal graft is performed safely and successfully, but most reports of ureteral reconstruction using a buccal mucosal graft are of robot-assisted surgery, with few reports of laparoscopic-assisted surgery. A case of laparoscopic-assisted redo pyeloplasty using a buccal mucosal graft is presented.
Case Presentation:
A 53-year-old woman was diagnosed with ureteropelvic junction obstruction, and a double-J stent was placed to relieve backache. She visited our hospital 6 months after double-J stent placement. Three months later, laparoscopic pyeloplasty was performed. At 2 months postoperatively, anatomic stenosis occurred. Holmium laser endoureterotomy and balloon dilation were performed; however, the anatomic stenosis recurred, and laparoscopic redo pyeloplasty with a buccal mucosal graft was performed. After redo pyeloplasty, obstruction was improved, and her symptoms disappeared.
Conclusion:
This is the first case of using a buccal mucosal graft for laparoscopic pyeloplasty in Japan.

