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  • Risk Group Stratification B...
    Sakano, Shigeru; Matsuyama, Hideyasu; Kamiryo, Yoriaki; Hayashida, Shigeaki; Yamamoto, Norio; Kaneda, Yoshitaka; Nasu, Takahito; Hashimoto, Osamu; Joko, Keiji; Baba, Yoshikazu; Shimabukuro, Tomoyuki; Suga, Akinobu; Yamamoto, Mitsutaka; Aoki, Akihiko; Takai, Kimio; Yoshihiro, Satoru; Matsumura, Masafumi

    Annals of surgical oncology, 12/2013, Letnik: 20, Številka: 13
    Journal Article

    Background After radical nephroureterectomy (RNU), substantial numbers of patients with upper urinary tract urothelial carcinoma (UUT-UC) are ineligible for adjuvant chemotherapy owing to diminished renal function. Accurate preoperative prediction of survival is considered important because neoadjuvant chemotherapy may be as effective for high-risk UUT-UC as for muscle-invasive bladder cancer. We performed risk group stratification to predict survival based on specific preoperative factors. Methods We enrolled 536 UUT-UC patients treated with RNU in this retrospective cohort study and assessed preoperative clinical and laboratory variables influencing disease-specific survival. Results The median follow-up was 40.9 months. Using univariate analysis, tumor location; number of tumors; hydronephrosis; clinical T stage; clinical N category; voided urine cytology; neoadjuvant chemotherapy; hemoglobin; white blood cell (WBC) counts; and C-reactive protein had a significant influence on disease-specific survival ( P  < 0.05). Multivariate analysis revealed that clinical T stage, voided urine cytology, and WBC were independent predictors ( P  = 0.041, P  = 0.020, and P  = 0.017, respectively). We divided patients into three risk groups based on the number of the three independent predictors: 0, low risk; 1, intermediate risk; 2 and 3, high risk. Significant differences in disease-specific survival were found among these risk groups ( P  ≤ 0.0047). Conclusions Our results suggest that risk group stratification based on preoperative clinical T stage, voided urine cytology, and WBC counts may be useful for selection of UUT-UC patients for neoadjuvant chemotherapy. Prospective studies with larger numbers of patients and a longer follow-up period are needed to confirm our results.