INTRODUCTION: We assess the impact of traditional prognostic factors, tumour location, degree of hydronephrosis and diabetes mellitus (DM) on the survival of patients treated for upper urinary tract urothelial carcinoma (UUTUC). METHODS: From January 2004 to March 2010, we analyzed data from 114 patients with UUTUC who underwent nephroureterectomy with a bladder cuff excision. Median patient age was 71 years and median follow-up was 26.5 months. The influence of traditional prognostic factors, including DM, tumour stage, grade, location and degree of hydronephrosis, on recurrence-free survival (RFS) rates were analyzed using Kaplan-Meier analysis and Cox proportional hazards regression model. RESULTS: Among 61 renal pelvis and 53 ureteral tumour cases, recurrence was identified in 71 cases (62.3%). Kaplan-Meier analysis showed that degree of hydronephrosis was associated with RFS (p = 0.001). DM and degree of hydronephrosis were independent factors for RFS in Cox proportional regression analysis (HR=1.8 CI: 1.01-3.55, p = 0.04), (HR=3.7, CI: 2.0-6.5, p = 0.001). All patients with ureteral tumour had no worse prognosis than those with renal pelvis tumour, but the pT2 patients with ureteral tumour had a worse prognosis than those with renal pelvis tumour with a median RFS of 9 months (range: 2.6-15.3 months) and 29 months (range: 8.0-13.2 months), respectively (p = 0.028). CONCLUSIONS: Tumour location is not a factor influencing RFS, except in the pT2 stage. However, severe hydronephrosis is associated with a higher recurrence in UUTUC. Also, DM is related to disease recurrence. Further prospective studies are needed to establish the prognostic significance of DM in large populations.
INTRODUCTION: We assess the impact of traditional prognostic factors, tumour location, degree of hydronephrosis and diabetes mellitus (DM) on the survival of patients treated for upper urinary tract urothelial carcinoma (UUTUC). METHODS: From January 2004 to March 2010, we analyzed data from 114 patients with UUTUC who underwent nephroureterectomy with a bladder cuff excision. Median patient age was 71 years and median follow-up was 26.5 months. The influence of traditional prognostic factors, including DM, tumour stage, grade, location and degree of hydronephrosis, on recurrence-free survival (RFS) rates were analyzed using Kaplan-Meier analysis and Cox proportional hazards regression model. RESULTS: Among 61 renal pelvis and 53 ureteral tumour cases, recurrence was identified in 71 cases (62.3%). Kaplan-Meier analysis showed that degree of hydronephrosis was associated with RFS (p = 0.001). DM and degree of hydronephrosis were independent factors for RFS in Cox proportional regression analysis (HR=1.8 CI: 1.01-3.55, p = 0.04), (HR=3.7, CI: 2.0-6.5, p = 0.001). All patients with ureteral tumour had no worse prognosis than those with renal pelvis tumour, but the pT2 patients with ureteral tumour had a worse prognosis than those with renal pelvis tumour with a median RFS of 9 months (range: 2.6-15.3 months) and 29 months (range: 8.0-13.2 months), respectively (p = 0.028). CONCLUSIONS:Tumour location is not a factor influencing RFS, except in the pT2 stage. However, severe hydronephrosis is associated with a higher recurrence in UUTUC. Also, DM is related to disease recurrence. Further prospective studies are needed to establish the prognostic significance of DM in large populations.
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