Erschienen in:
10.04.2017 | Original Article
Efficacy of post-nephroureterectomy cisplatin-based adjuvant chemotherapy for locally advanced upper tract urothelial carcinoma: a multi-institutional retrospective study
verfasst von:
Tohru Nakagawa, Yoshimitsu Komemushi, Taketo Kawai, Masafumi Otsuka, Jimpei Miyakawa, Yukari Uemura, Atsushi Kanatani, Satoru Taguchi, Akihiro Naito, Motofumi Suzuki, Hiroaki Nishimatsu, Yoshikazu Hirano, Yoshinori Tanaka, Akihiko Matsumoto, Hideyo Miyazaki, Tetsuya Fujimura, Hiroshi Fukuhara, Haruki Kume, Yasuhiko Igawa, Yukio Homma
Erschienen in:
World Journal of Urology
|
Ausgabe 10/2017
Einloggen, um Zugang zu erhalten
Abstract
Purpose
To evaluate the efficacy of adjuvant systemic chemotherapy for locally advanced (pT3-4pN0/xM0) upper tract urothelial carcinoma (UTUC).
Materials and methods
We retrospectively reviewed the medical records of 109 patients with pT3-4pN0/xM0 UTUC who had undergone radical nephroureterectomy between 1996 and 2013 at our four institutions. The patients were divided into two groups: those who received adjuvant chemotherapy (AC group) and those who did not (surgery-alone: SA group). All chemotherapy regimens were cisplatin-based. Cox proportional hazards regression models addressed the associations between clinicopathological factors and recurrence-free survival (RFS) and cancer-specific survival (CSS).
Results
Forty-three (39.5%) out of the 109 patients underwent one to four cycles of adjuvant chemotherapy after nephroureterectomy. Median follow-up was 46.5 months. There were no significant differences in the background characteristics of the two groups, except for age. Recurrence developed in 11 (25.6%) and 29 (43.9%) patients in the AC and SA groups, respectively. Ultimately, six (14.0%) and 18 (27.3%) patients in the AC and SA groups, respectively, died of disease progression. On univariate analysis, hydronephrosis, nuclear grade, lymphovascular invasion, and adjuvant chemotherapy were significantly associated with both RFS and CSS. Charlson comorbidity index was associated only with CSS. On multivariate analysis, adjuvant chemotherapy was the only independent factor associated with improved RFS (p = 0.0178, HR = 0.41). Moreover, adjuvant chemotherapy (p = 0.0375, HR = 0.33), lower nuclear grade (p = 0.0070), and the absence of hydronephrosis (p = 0.0493) were independently associated with better CSS.
Conclusion
Locally advanced (pT3-4pN0/xM0) UTUC patients who underwent cisplatin-based adjuvant chemotherapy demonstrated better RFS and CSS than those without adjuvant chemotherapy.