Diversity in treatment modalities of Stage II/III urothelial cancer in Japan: sub-analysis of the multi-institutional national database of the Japanese Urological Association

作者：Koie Takuya; Ohyama Chikara^*; Fujimoto Hiroyuki; Nishiyama Hiroyuki; Miyazaki Jun; Hinotsu Shiro; Kikuchi Eiji; Sakura Mizuaki; Inokuchi Junichi; Hara Tomohiko

来源：Japanese Journal of Clinical Oncology, 2016, 46(5): 468-474.

DOI：10.1093/jjco/hyw005

• Japanese patients
• treatment modality
• muscle-invasive bladder cancer
• upper urinary tract urothelial carcinoma
• survival

Objective: We aimed to survey treatment modalities for the patients with Stage II/III urothelial cancer in Japan.
Methods: We used the multi-institutional national database of the Japanese Urological Association from 348 Japanese institutions, in which a total of 3707 patients with muscle-invasive bladder cancer and 1538 with upper urinary tract urothelial carcinoma were registered in 2008 and 2011, respectively. Primary treatment was classified as surgery alone, surgery with chemotherapy, surgery with radiation, radiation alone, chemotherapy alone, combination of radiation and chemotherapy and observation. Overall and cancer-specific survivals were examined using the Kaplan-Meier method, and survival in the subgroups was analyzed using the log-rank test.
Results: In Stage II/III bladder cancer patients, 49.7% of those were treated with radical operation and 22.3% received observation only. A total 97.2% of Stage II/III upper urinary tract urothelial carcinoma patients treated with radical surgery. A total 30.4% of Stage II/III bladder cancer patients received chemotherapy. Majority of the patients received cisplatin-based regimen, however, regimens of chemotherapy was rich in variety up to 13 regimens. Chemotherapy regimens for the patients with upper urinary tract urothelial carcinoma were also various up to eight regimens. Overall and cancer-specific survivals were statistically significantly stratified according to the clinical stage. The upper urinary tract urothelial carcinoma patients diagnosed with clinical stage T3 had significantly poor prognosis compared with those diagnosed with clinical stage T2.
Conclusions: This study demonstrated the variety of treatments used for Japanese patients with Stage II/III urothelial cancer. Treatment standardization for these entities may be necessary.

• 出版日期2016-5
• 单位中国医学科学院肿瘤医院