Preserved Residual Kidney Function after Twelve Years' Hemodialysis

Abstract

Residual kidney function (RKF) contributes significantly to solute clearance and fluid removal for dialysis patients, and the presence of RKF is associated with less morbidity and better long-term outcome. Most studies demonstrate that peritoneal dialysis preserves RKF better than hemodialysis (HD). Herein, we report a 55-year-old man with end stage renal failure who had been on chronic HD for 12 years. His RKF is preserved with very slow decline during the past years. Without specific intervention, delicate fluid management, minimal ultrafiltration, and stable hemodynamics during HD may help maintain his RKF. He is currently normotensive with good nutritional status. Although unexpected, we report this HD patient can preserve his RKF for at least 12 years.

Preservation of Residual Renal Function with Limited Water Removal in Hemodialysis Patients

“…Avoidance of aggressive water removal, even without water removal, is beneficial for the preservation of RRF in dialysis patients. 10,11 Hyodo and Koutoku 12 compared the RRF in HD patients without water removal with that in patients with water removal, and the results showed that the urine volume in those without water removal was significantly larger. However, the present study indicated that preservation of RRF with limited water removal in HD patients must be interpreted with caution.…”