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Purposes <p>This study aimed to clarify the clinical outcomes of Bacillus Calmette-Guérin (BCG) treatment in patients with urothelial carcinoma (UC) of the prostatic urethra.</p> Methods <p>Between August 2003 and January 2023, 428 patients with non-muscle-invasive UC received BCG treatment (Tokyo strain, 80&#xa0;mg, ≥ 5 times) in our hospital; 39 had UC of the prostatic urethra. We evaluated the cumulative incidence of intravesical recurrence, progression (muscle-invasive bladder cancer [MIBC] or metastasis), and subsequent radical cystectomy after BCG treatment in patients with UC of the prostatic urethra.</p> Results <p>The median follow-up period was 57&#xa0;months (interquartile range, 30–85&#xa0;months). The exact T stage of the patients with UC of the prostatic urethra was carcinoma in situ (CIS) in 29 (27 in the prostatic urethral mucosa and two in the ductal spread), Ta in 7, Ta + CIS in 2, and T1 in 1. All 39 patients had previous or concurrent bladder cancer. Patients with UC of the prostatic urethra experienced significantly higher rates of intravesical recurrence, progression (MIBC or metastasis), and subsequent radical cystectomy than those without UC of the prostatic urethra. In the multivariate analysis, UC of the prostatic urethra was a significant risk factor for progression (hazard ratio 4.06, 95% confidence interval 1.86–8.86, p &lt; 0.001).</p> Conclusions <p>This study reported the largest number of clinical outcomes after BCG treatment in patients with UC of the prostatic urethra. Concomitant UC of the prostatic urethra is a strong predictor of subsequent progression; therefore, early timing of radical cystectomy should be discussed.</p>

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Clinical outcome of BCG treatment for patients with urothelial carcinoma of the prostatic urethra: Implications for early cystectomy

  • 期刊论文

  • 发表日期：

    2025年1月14日

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  • Ryo Yamashita,
  • Takashi Sugino,
  • Akifumi Notsu,
  • Kana Ito,
  • Yuma Sakura,
  • Hideo Shinsaka,
  • Masato Matsuzaki,
  • Masashi Niwakawa,
  • Eiji Kikuchi

摘要

Purposes

This study aimed to clarify the clinical outcomes of Bacillus Calmette-Guérin (BCG) treatment in patients with urothelial carcinoma (UC) of the prostatic urethra.

Methods

Between August 2003 and January 2023, 428 patients with non-muscle-invasive UC received BCG treatment (Tokyo strain, 80 mg, ≥ 5 times) in our hospital; 39 had UC of the prostatic urethra. We evaluated the cumulative incidence of intravesical recurrence, progression (muscle-invasive bladder cancer [MIBC] or metastasis), and subsequent radical cystectomy after BCG treatment in patients with UC of the prostatic urethra.

Results

The median follow-up period was 57 months (interquartile range, 30–85 months). The exact T stage of the patients with UC of the prostatic urethra was carcinoma in situ (CIS) in 29 (27 in the prostatic urethral mucosa and two in the ductal spread), Ta in 7, Ta + CIS in 2, and T1 in 1. All 39 patients had previous or concurrent bladder cancer. Patients with UC of the prostatic urethra experienced significantly higher rates of intravesical recurrence, progression (MIBC or metastasis), and subsequent radical cystectomy than those without UC of the prostatic urethra. In the multivariate analysis, UC of the prostatic urethra was a significant risk factor for progression (hazard ratio 4.06, 95% confidence interval 1.86–8.86, p < 0.001).

Conclusions

This study reported the largest number of clinical outcomes after BCG treatment in patients with UC of the prostatic urethra. Concomitant UC of the prostatic urethra is a strong predictor of subsequent progression; therefore, early timing of radical cystectomy should be discussed.