Overnight continuous saline irrigation after transurethral resection for superficial bladder cancer is helpful in prevention of early recurrence

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It has been reported that many methods prevent recurrence after transurethral resection of bladder tumor (TURB) for non-muscle invasive bladder cancer (NMIBC), but it has rarely been reported that overnight continuous saline irrigation is effective in preventing recurrence. The purpose of this study was to evaluate the efficacy of overnight continuous saline irrigation in preventing recurrence after TURB.


We retrospectively studied patients with NMIBC who underwent TURB from January 2010 to May 2015 at our institution. Patients who underwent cystoscopy every 12 weeks during the first year after surgery were included. Patients with pT2 ?, lymph node metastasis, or distant metastasis were excluded. The overnight continuous saline irrigation (OCSI) group and the no irrigation group were compared and analyzed.


A total of 332 patients were included in the study. There were no differences in the basic characteristics of the patients between the two groups. In the OCSI group, the recurrence-free survival rate was higher than that in the no irrigation group, indicating that there was a significant difference between the two groups (P=0.032).


After TURB surgery, OCSI may help prevent early recurrence of NMIBC.

Funding: none