Modified technique for improving tubeless cutaneous ureterostomy by Ariyoshi method.

Area of Science:

• Urology
• Surgical Innovation
• Urinary Diversion

Background:

• Cutaneous ureterostomy is a simple urinary diversion but frequently leads to stomal stenosis.
• Stomal stenosis necessitates ongoing catheterization and regular exchanges, impacting patient quality of life.

Purpose of the Study:

• To evaluate a modified cutaneous ureterostomy technique that preserves the spermatic cord fascia (S-U fascia).
• To determine if preserving the S-U fascia prevents stomal stenosis and reduces the need for catheterization.

Main Methods:

• A modified technique preserving S-U fascia was applied to 36 patients (66 renal units).
• A conventional technique was used for 22 patients (27 renal units) as a control group.
• Univariate and multivariate analyses were performed to compare outcomes between the techniques.

Main Results:

• The modified technique showed a significantly higher catheter-free rate (approximately 90%) compared to the conventional technique.
• Conventional technique resulted in stomal stenosis in 74% of patients, requiring catheterization.
• Multivariate analysis identified the surgical method as a significant factor in preventing stenosis.

Conclusions:

• Preserving the S-U fascia in cutaneous ureterostomy is an effective method to prevent stomal stenosis.
• This technique significantly improves patients' quality of life by enabling a catheter-free existence.
• The technique shows potential applicability to other ureter surgeries.