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  • Title: [Efficacy of intravesical bacillus Calmette-Guerin for carcinoma in situ of bladder].
    Author: Uekado Y, Kohjimoto Y, Iba A, Kikkawa K, Shintani Y, Shinka T.
    Journal: Hinyokika Kiyo; 2006 Jun; 52(6):439-44. PubMed ID: 16848357.
    Abstract:
    Three months after an initial 6-week course ofintravesical bacillus Calmette-Guerin (BCG) given between January 1990 and March 2005, 94 (90%) out of 104 patients with carcinoma in situ (CIS) of the bladder achieved a complete response (CR). The 5- and 10-year recurrence-free rates were 67 and 60%, respectively (median follow-up 42 months). Three months after a second course ofintravesical BCG given to 23 patients who failed the initial induction course for CIS was evaluated. Of these, 96% achieved a CR, and the 5- and 10-year recurrence-free rates were 56 and 28%,respectively (median follow-up 23 months). Only one patient who received a second course of BCG therapy showed disease progression. Two of the 4 patients with BCG-refractory CIS of the bladder achieved CR after intravesical gemcitabine therapy and maintained a tumor-free status beyond 6 months. Five of the 16 patients showing disease progression had upper urinary tract cancer, 4 had recurrent or muscle invasive bladder cancer, 6 had prostatic involvement of CIS, and one patient had urethral recurrence. Three of the 16 patients died. Bladder preservation was achieved in 97 of the 104 patients, although 7 patients ultimately underwent radical cystectomy and urinary diversion for aggressive disease. In conclusion, some patients may be managed safely by repeated endoscopic resection and intravesical therapy with cystectomy postponed until objective evidence of progression exists.
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