TEN YEARS SURVIVAL RATE OF PATIENTS WITH BLADDER TUMORS

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  • Obata Koji
    Nagoya First and Second RedCross Hospital, Department of Urology
  • Murase Taturo
    Nagoya First and Second RedCross Hospital, Department of Urology
  • Ando Masashi
    Nagoya First and Second RedCross Hospital, Department of Urology
  • Kobayashi Hiroaki
    Nagoya First and Second RedCross Hospital, Department of Urology

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  • 膀胱腫瘍の予後の検討-10年相対生存率について-

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From 1965 to 1983, 329 patients with primary bladder tumors were followed up in our clinics. The pathological stage showed good relation to the grade. There were only few cases of low-grade high-stage tumors. In particular, no transitional cell carcinoma G1 had muscle invasion in our series. The survival rate of low-grade tumors were significantly higher than that of high-grade tumors, but altogether the survival rates decreased according to the stage regardless of the grade. Although the 10years relative survival rate was calculated as 100per cent for superficial tumors, some died from cancer. The cancer death happened after 5years. It shows that a follow-up study for over 10years may be needed for patients with superficial tumors. As for invasive tumor, the relative survival rates were 47.4per cent in 5years and 45.5per cent in 10years. Because of no death after 6years, the acturial survival rate in this group remained unchanged at 32per cent from 6 to 10years. It seems that the 5years survival rate shows well enough prognosis of invasive bladder cancers. There is no need to calculate the 10years rate for these cases. No patients with advanced bladder cancers were alive over 4years.

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