title: [Prophylactic effect of pirarubicin (THP) on postoperative recurrence of superficial bladder cancer in terms of intravesical retention time].
abstract: In order to determine the modality of prophylactic intravesical instillation of pirarubicin (THP = tetrahydropyranyladriamycin) following transurethral resection (TUR) of superficial bladder cancer, a prospective randomized study was performed. A total of 79 patients were randomized into "2-hour instillation" (A), "5-min instillation" (B) and "control" (C) groups. Prophylactic efficacy and side effects were analyzed in each group. In groups A and B, 20 mg of THP was first dissolved in 10 ml of distilled water, adjusted to 40 ml with saline and was administered intravesically once a week for 10 weeks, starting from 1 week after TUR. The recurrence-free rate was calculated in 65 evaluable patients. The one-year recurrence-free rate was 70.2% in group A, 62.8% in group B and 52.1% in group C. The one-year recurrence-free rate was significantly higher in group A than in group C. Adverse effects were observed in 21.4% of the patients in group A and 40.7% in group B. There was no significant difference in the occurrence rate of side effects between these two groups. Taking the prophylactic efficacy and side effects into consideration, "2-hour instillation" seemed to be better than "5-min instillation".
authors: Department of Specific Organ Regulation (Urology), Osaka University Graduate School of Medicine.
authors: N
authors: N
authors: Nonomura
authors: K
authors: K
authors: Nishimura
authors: A
authors: A
authors: Okuyama
authors: T
authors: T
authors: Miki
authors: T
authors: T
authors: Kishimoto
authors: H
authors: H
authors: Kiyohara
authors: A
authors: A
authors: Wakatsuki
authors: H
authors: H
authors: Fujioka
authors: H
authors: H
authors: Kuroda
authors: E
authors: E
authors: Nakano
authors: M
authors: M
authors: Takeyama
authors: T
authors: T
authors: Koide
authors: S
authors: S
authors: Yamaguchi
mesh_terms: D000283:Administration, Intravesical; D000328:Adult; D000368:Aged; D000903:Antibiotics, Antineoplastic / Q000008:administration & dosage*; D004317:Doxorubicin / Q000008:administration & dosage* / Q000031:analogs & derivatives; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000517:prevention & control*; D011182:Postoperative Care; D011446:Prospective Studies; D013997:Time Factors; D001749:Urinary Bladder Neoplasms / Q000378:metabolism / Q000517:prevention & control* / Q000601:surgery
chemical_list: D000903:Antibiotics, Antineoplastic; D004317:Doxorubicin; C027260:pirarubicin