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- Title
Reduced estimated glomerular filtration rate (eGFR <60 mL/min/1.73 m<sup>2</sup>) at first transurethral resection of bladder tumour is a significant predictor of subsequent recurrence and progression.
- Authors
Blute, Michael L.; Kucherov, Victor; Rushmer, Timothy J.; Damodaran, Shivashankar; Shi, Fangfang; Abel, E. Jason; Jarrard, David F.; Richards, Kyle A.; Messing, Edward M.; Downs, Tracy M.
- Abstract
Objective To evaluate if moderate chronic kidney disease [CKD; estimated glomerular filtration rate (eGFR) <60 mL/min/1.73 m2] is associated with high rates of non-muscle-invasive bladder cancer (NMIBC) recurrence or progression. Patients and Methods A multi-institutional database identified patients with serum creatinine values prior to first transurethral resection of bladder tumour (TURBT). The CKD-epidemiology collaboration formula calculated patient eGFR. Cox proportional hazards models evaluated associations with recurrence-free (RFS) and progression-free survival (PFS). Results In all, 727 patients were identified with a median (interquartile range [IQR]) patient age of 69.8 (60.1-77.6) years. Data for eGFR were available for 632 patients. During a median (IQR) follow-up of 3.7 (1.5-6.5) years, 400 (55%) patients had recurrence and 145 (19.9%) patients had progression of tumour stage or grade. Moderate or severe CKD was identified in 183 patients according to eGFR. Multivariable analysis identified an eGFR of <60 mL/min/1.73 m2 (hazard ratio [HR] 1.5, 95% confidence interval [CI]: 1.2-1.9; P = 0.002) as a predictor of tumour recurrence. The 5-year RFS rate was 46% for patients with an eGFR of ≥60 mL/min/1.73 m2 and 27% for patients with an eGFR of <60 mL/min/1.73 m2 ( P < 0.001). Multivariable analysis showed that an eGFR of <60 mL/min/1.73 m2 (HR 3.7, 95% CI: 1.75-7.94; P = 0.001) was associated with progression to muscle-invasive disease. The 5-year PFS rate was 83% for patients with an eGFR of ≥60 mL/min/1.73 m2 and 71% for patients with an eGFR of <60 mL/min/1.73 m2 ( P = 0.01). Conclusion Moderate CKD at first TURBT is associated with reduced RFS and PFS. Patients with reduced renal function should be considered for increased surveillance.
- Subjects
BLADDER tumors; GLOMERULAR filtration rate; CYSTECTOMY; CANCER relapse; PROGRESSION-free survival; KIDNEY diseases; PROGNOSIS
- Publication
BJU International, 2017, Vol 120, Issue 3, p387
- ISSN
1464-4096
- Publication type
Article
- DOI
10.1111/bju.13904