Lee BH, et al. - This study was formulated in order to comprehend the longitudinal renal function trends in patients undergoing radical nephroureterectomy (RNU). Researchers also sought to determine the clinicopathologic features related to the estimated glomerular filtration rate (eGFR) recovery. eGFR recovery was yielded within the first 3 years after RNU in over half of patients with preoperative eGFR < 60 ml/min/1.73 m². Hydronephrosis served as a predominant predictor of recovery. These data ought to be taken into account when counseling patients regarding chronic kidney disease progression after RNU and timing of perioperative chemotherapy for high-risk tumors.