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A Multi-Institutional Validation of the Prognostic Value of the Neutrophil-to-Lymphocyte Ratio for Upper Tract Urothelial Carcinoma Treated with Radical Nephroureterectomy

Abstract

Background

To externally validate the prognostic impact of preoperative neutrophil–lymphocyte ratio (pre-NLR) in patients with upper tract urothelial carcinoma (UTUC) following radical nephroureterectomy (RNU).

Methods

A total of 665 patients from 12 institutions were included. The median follow-up was 28 months. Associations between pre-NLR level and outcome were assessed using multivariate analysis. A pre-NLR level of >3.0 was defined as elevated.

Results

Pre-NLR levels were elevated in 184 patients (27.7 %), and pre-NLR elevation was significantly associated with worse pathological features such as tumor grade 3, advanced pT stage, positive lymphovascular invasion (LVI), and lymph node involvement in RNU specimens. The 5-year recurrence-free and cancer-specific survival rates were 57.0 % (p < 0.001) and 60.2 % (p < 0.001), respectively, in patients with elevated pre-NLR, and 69.2 and 77.3 %, respectively, in their counterparts. Multivariate analysis showed that elevated pre-NLR was an independent risk factor for predicting subsequent disease recurrence (p = 0.037; hazard ratio (HR) 1.38) and cancer-specific mortality (p = 0.036;, HR 1.47), although the addition of pre-NLR slightly improved the accuracies of the base model for predicting both disease recurrence and cancer-specific mortality to 79.8 % (p = 0.041) and 83.0 % (p = 0.039), respectively (gain in predictive accuracy: 0.2 and 0.1 %, respectively).

Conclusion

This multi-institutional study revealed that elevated pre-NLR was significantly associated with worse pathological features such as tumor grade 3, advanced pT stage, positive LVI, and lymph node involvement in RNU specimens, and elevated pre-NLR was an independent risk factor of disease recurrence and cancer-specific mortality in UTUC patients treated with RNU.

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Acknowledgment

Members of the Keio Collaboration Study of Urothelial Carcinoma participated in this study: Keishiro Fukumoto, Keio University School of Medicine, Tokyo, Japan; So Nakamura, Saiseikai Central Hospital, Tokyo, Japan; Takeshi Masuda, Saitama Municipal Hospital, Saitama, Japan; Shintaro Hasegawa, National Hospital Organization Tochigi Hospital, Tochigi, Japan; Atsushi Uchida, Kyosai Tachikawa Hospital, Tokyo, Japan; Kazuhiko Nagakura, Musashino Yowakai Hospital, Tokyo, Japan; Masakazu Ohashi, Ogikubo Hospital, Tokyo, Japan; Shoji Matsuzaki, Inagi Municipal Hospital, Tokyo, Japan; Kazutoyo Miyata, Irumagawa Hospital, Saitama, Japan. This work was supported in part by Grants-in-Aid for Scientific Research (#26462429 to Nobuyuki Tanaka) from the Ministry of Education, Culture, Sports, Science, and Technology, Japan.

Conflict of interest

This work had no specific funding or financial support.

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Correspondence to Eiji Kikuchi MD, PhD.

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Tanaka, N., Kikuchi, E., Kanao, K. et al. A Multi-Institutional Validation of the Prognostic Value of the Neutrophil-to-Lymphocyte Ratio for Upper Tract Urothelial Carcinoma Treated with Radical Nephroureterectomy. Ann Surg Oncol 21, 4041–4048 (2014). https://doi.org/10.1245/s10434-014-3830-3

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  • DOI: https://doi.org/10.1245/s10434-014-3830-3

Keywords

  • Urothelial Carcinoma
  • Radical Nephroureterectomy
  • Predict Disease Recurrence
  • Urothelial Carcinoma Patient
  • Subsequent Disease Recurrence