In the past, the typical approach for bladder tumor are standard resection(SR), which cause the tumor was retrieved piece by piece. Recent years, new technique known as En bloc resection(ERBT) was proposed around the world. Especially in treating nonmuscle- invasive bladder cancer(NMIBC). It is said to have better muscle retrieving rate and less recurrent rate. This study showed our experience and result in Taichung general veteran hospital.

This is a single center reviewing report. Adults with bladder tumor from 2020 January to 2022 December. We collect only single surgeon's data to diminish the difference and technique of the physicians. There are 63 patient in our study and 51 received SR and 12 received ERBT. The primary outcome was 3 months recurence rate and 1 year recurrence rate. secondary outcome was muscle detection rate and 1 year progression rate.

A total of 63 patient were histologically confirmed to have NMIBC. 51 patients received SR and 12 received ERBT. At 3 months, 22 patients in the SR group recurrence and only 2 in ERBT group. Furthermore, there are 29 patients in the SR group recurrence compare to 4 only in ERBT group after 1 year. The recurrence rate was 56% in SR group and 28% in ERBT group. And there was no disease progression patient in ERBT group. However, the muscle detection rate had no statically difference.

In our hospital, despite the less amount of patient and higher recurrence rate compare to other world data, ERBT still resulted in a significant reduction in recurrence rate compare with SR. Our study result support ERBT as the first line surgical treatment for patient with NMIBC.