Related Experiment Videos
Ureteral tissue balloon expansion for laparoscopic bladder augmentation: survival study
Mihir M Desai1, Inderbir S Gill, Mahesh Goel
1Section of Laparoscopic and Minimally Invasive Surgery, Urological Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA.
Journal of Endourology
|July 30, 2003
Summary
This study demonstrates a new minimally invasive technique for bladder augmentation using balloon-expanded ureteral tissue. This method shows promising results for creating larger, compliant bladders with healthy tissue for urinary reconstruction.
Area of Science:
- Urology
- Surgical Innovation
- Regenerative Medicine
Background:
- Intestinal segments are commonly used for bladder reconstruction but have limitations.
- The ureter, lined with transitional epithelium, is a potential ideal tissue for bladder augmentation.
- Previous open surgery methods for ureteral expansion exist.
Purpose of the Study:
- To evaluate a completely minimally invasive approach for chronic ureteral balloon dilation.
- To assess the feasibility of using this expanded ureteral tissue for laparoscopic bladder augmentation.
- To analyze the urodynamic characteristics and histological features of the augmented bladder.
Main Methods:
- A novel ureteral expansion balloon device was used percutaneously in five female pigs.
- Progressive ureteral dilation was performed over 3-4 weeks.
- Laparoscopic augmentation ureterocystoplasty was conducted, followed by evaluation at various time points.
Main Results:
- Percutaneous balloon placement was technically successful in all cases.
- Ureter volume significantly increased, reaching 171.8 cc by week 3.
- Laparoscopic augmentation was successful, with augmented bladders showing normal capacity and compliance at 3 months.
Conclusions:
- Chronic ureteral tissue expansion is safe and effective.
- The expanded ureteral tissue is healthy, vascular, and exhibits muscle hypertrophy.
- This technique allows for laparoscopic bladder augmentation with durable, functional results.