Acceptable Weekly Weight Gain for Twice-Weekly Hemodialysis

Introduction to Twice-Weekly Hemodialysis

The National Kidney Foundation's KDOQI guidelines state that all hemodialysis adequacy recommendations are based on the assumption that treatments are delivered three times per week, and twice-weekly schedules are usually inadequate unless substantial residual kidney function exists 1, 2
Twice-weekly hemodialysis is generally inadequate and not recommended unless the patient has significant residual kidney function (GFR ≥5 mL/min), which must be monitored serially to guide the appropriate timing of switching to thrice-weekly dialysis 1, 2

Because residual kidney function declines over time, patients on twice-weekly hemodialysis require serial monitoring of residual kidney function to guide the appropriate timing of switching to thrice-weekly dialysis 1, 2
The American Journal of Kidney Diseases recommends that if residual kidney function has declined below 5 mL/min or if metabolic control is inadequate, patients should transition to thrice-weekly dialysis 1, 2

To manage excessive weight gains, the American Journal of Kidney Diseases suggests extending dialysis treatment duration (≥5 hours per session) combined with strict dietary sodium restriction (80-100 mmol/day or 1.8-2.3g sodium) 3, 4
Ultrafiltration rates must be limited to ≤10 mL/kg/hour to prevent cardiovascular complications and intradialytic hypotension 3, 4