Published in:
Open Access
01-06-2020 | Original Article
Risk for intravesical recurrence of bladder cancer stratified by the results on two consecutive UroVysion fluorescence in situ hybridization tests: a prospective follow-up study in Japan
Authors:
Atsushi Ikeda, Takahiro Kojima, Koji Kawai, Shiro Hinotsu, Naoto Keino, Kenichiro Shiga, Hideaki Miyake, Yasuyoshi Miyata, Yutaka Enomoto, Fumitaka Shimizu, Satoshi Anai, Hideyasu Matsuyama, Chieko Suzuki, Yusuke Kanimoto, Keisuke Shigeta, Seiji Naito, Hideyuki Akaza, Hiroyuki Nishiyama
Published in:
International Journal of Clinical Oncology
|
Issue 6/2020
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Abstract
Background
A previous comparative study in Japan has demonstrated that the two consecutive UroVysion tests are useful tools to detect the presence of bladder cancer during follow-up after transurethral resection, but they also presented their high rates of false-positive results. Here, we aimed to evaluate the relationship between the UroVysion tests and subsequent intravesical recurrence.
Methods
In the previous study, patients without bladder cancer during the first analysis showed the same examination set repeated 3 months later as the second analysis. In this follow-up study, 326 patients showed negative findings confirmed on cystoscopy during the second UroVysion test. Recurrence-free survival was assessed using a median follow-up of 27 months.
Results
In the two consecutive UroVysion tests, 214 patients (65.6%) showed negative UroVysion results in both tests, whereas 91 presented a positive result on either tests and 21 patients presented positive results in both tests. During the follow-up, 40 patients (12.3%) had an intravesical recurrence with non-muscle-invasive bladder cancer. The recurrence rates in patients with negative results in both tests, those with one positive result in either tests, and those with positive results in both tests were 8.4%, 16.5%, and 33.3%, respectively. The multivariate analysis indicated that the history of bladder cancer and the consecutive UroVysion test pattern were independent risk factors for recurrence.
Conclusions
Our data confirmed the effectiveness of two consecutive UroVysion tests in predicting intravesical recurrence after TURBT. Further prospective studies would help determine an appropriate interval for cystoscopy follow-up.