Urolithiasis: The Most Risk for Nephrectomy in Nonrenal Tumor Patients

Abstract Background and Purpose: The existence of upper urinary tract calculus may cause complete loss of renal function, which eventually results in nephrectomy. Our purpose was to describe the prevalence and clinical characteristics of upper urinary tract calculus cases among a series of patients undergoing nephrectomy during a 10-year period. Patients and Methods: The data of 1059 patients undergoing nephrectomy between January 2001 and December 2010 in our center were reviewed. The prevalence and clinical characteristics of upper urinary tract calculi-derived nonfunctioning kidney were analyzed. Results: Among 1059 patients, 177 (16.7%) had nonfunctioning kidneys, which were second in number to renal tumor cases (801, 75.6%). Upper urinary tract calculi accounted for the greatest cause (101, 57.1%) in these nonfunctioning kidney cases. These patients were mainly screened by ultrasonography and the diagnosis confirmed by CT, intravenous urography, and nuclear renography. There were 44 (43.6%) patients ...