1
|
Iwamura H, Hatakeyama S, Sato M, Ohyama C. Asymptomatic recurrence detection and cost-effectiveness in urothelial carcinoma. Med Oncol 2018; 35:94. [PMID: 29744601 PMCID: PMC5943375 DOI: 10.1007/s12032-018-1152-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 05/03/2018] [Indexed: 12/20/2022]
Abstract
For the management of muscle-invasive bladder cancer or upper tract urothelial carcinoma, the set guidelines recommend regular surveillance after radical cystectomy or radical nephroureterectomy. However, the prognostic benefit of regular oncological surveillance remains controversial in the absence of prospective studies although several retrospective studies with relatively large sample sizes have demonstrated the association between asymptomatic recurrence and better oncological outcomes. Seven out of eight studies reported that patients diagnosed with symptomatic recurrence showed significantly poorer prognosis in comparison to those diagnosed with asymptomatic recurrence. However, potential lead-time and length-time biases prevent the determination of any benefit of regular surveillance. In addition, an optimal surveillance protocol has yet to be established because conventional pathology-based protocols cannot identify the heterogenetic tumor biology of urothelial carcinoma, such as rapid- or slow-growing form of the disease. Several studies suggest that conventional pathology-based surveillance resulted in reduced cost-effectiveness. Recurrence risk-score stratified surveillance protocol including clinical and pathological factors may improve cost-effectiveness. The establishment of optimal risk stratification and surveillance strategies are required to improve the efficacy of regular oncological surveillance. Well-planned prospective studies are necessary to address the prognostic benefit of regular oncological surveillance and shared decision making.
Collapse
Affiliation(s)
- Hiromichi Iwamura
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosak, 036-8562, Japan.,Department of Urology, Tohoku Medical and Pharmaceutical University, 1-15-1 Fukumuro, Sendai, 983-8536, Japan
| | - Shingo Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosak, 036-8562, Japan.
| | - Makoto Sato
- Department of Urology, Tohoku Medical and Pharmaceutical University, 1-15-1 Fukumuro, Sendai, 983-8536, Japan
| | - Chikara Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosak, 036-8562, Japan
| |
Collapse
|
2
|
Kusaka A, Hatakeyama S, Hosogoe S, Hamano I, Iwamura H, Fujita N, Fukushi K, Narita T, Hagiwara K, Yamamoto H, Tobisawa Y, Yoneyama T, Yoneyama T, Hashimoto Y, Koie T, Ito H, Yoshikawa K, Kawaguchi T, Ohyama C. Risk-stratified surveillance and cost effectiveness of follow-up after radical cystectomy in patients with muscle-invasive bladder cancer. Oncotarget 2017; 8:65492-65505. [PMID: 29029448 PMCID: PMC5630348 DOI: 10.18632/oncotarget.19043] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 06/20/2017] [Indexed: 11/25/2022] Open
Abstract
Background The recurrence risk stratification and the cost effectiveness of oncological surveillance after radical cystectomy are not clear. We aimed to develop a risk stratification and a surveillance protocol with improved cost effectiveness after radical cystectomy. Results Of 581 enrolled patients, 175 experienced disease recurrences. The pathology-based protocol presented significant differences in recurrence-free survival between normal- and high-risk patients, but the medical expense was high, especially in normal-risk (≤pT2pN0) patients. Cox regression analysis identified six factors associated with recurrence-free survival. Risk score-based 5-year follow-up was significantly more cost effective than the pathology-based protocol. Materials and Methods We retrospectively evaluated 581 patients with radical cystectomy for muscle-invasive bladder cancer at 4 hospitals. Patients with routine oncological follow-up were stratified into normal- and high-risk groups by a pathology-based protocol utilizing pT, pN, lymphovascular invasion, and histology. Cost effectiveness of the pathology-based protocol was evaluated and a risk-score-based protocol was developed to optimize cost effectiveness. Risk-scores were calculated by summing risk factors independently associated with recurrence-free survival. Patients were stratified by low-, intermediate-, and high-risk score. Estimated cost per one recurrence detection by the pathology and by risk-scores were compared. Conclusions Risk-score-stratified surveillance protocol has potential to reduce over-evaluation after radical cystectomy without adverse effects on medical cost.
Collapse
Affiliation(s)
- Ayumu Kusaka
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shingo Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shogo Hosogoe
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Itsuto Hamano
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hiromichi Iwamura
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Naoki Fujita
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ken Fukushi
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takuma Narita
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kazuhisa Hagiwara
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hayato Yamamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yuki Tobisawa
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Tohru Yoneyama
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takahiro Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yasuhiro Hashimoto
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takuya Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hiroyuki Ito
- Department of Urology, Aomori Rosai Hospital, Hachinohe, Japan
| | | | - Toshiaki Kawaguchi
- Department of Urology, Aomori Prefectural Central Hospital, Aomori, Japan
| | - Chikara Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.,Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| |
Collapse
|