膀胱腫瘍の再発に関する臨床統計的観察

Abstract

Recurrence rate of the bladder tumor was studied on 132 patients who had non-infiltrating, pedunculated tumor in the bladder and had neither treatment nor preventive measures since the first surgery. 1) Average age of the patients was 59.6 and the sex ratio was 3.4 (M) : 1 (F). 2) The recurrence rate was 27.3 % within six months, 43.5 % within one year, 57.3 % within two years and 92.7%, within five years. 3) There was no sex difference in the rate. 4) The recurrence rate within two years was 45 % in the single tumors whereas 78 % in the multiple tumors. The rate after this period showed no significant difference between both groups. 5) No difference of the recurrence rate was observed according to the methods of the first treatment.