Effect of Lowering Dialysate Sodium Concentration on Interdialytic Weight Gain and Blood Pressure in Patients Undergoing Thrice-Weekly In-center Nocturnal Hemodialysis: A Quality Improvement Study

Decreasing dialysate sodium concentrations in patients undergoing thrice-weekly in-center nocturnal hemodialysis resulted in a clinical and statistically significant decrease in IDWG, IDWG%, postdialysis plasma sodium concentration, and predialysis systolic blood pressure without increasing adverse events. Prolonged exposure to higher than required dialysate sodium concentrations may drive IDWG and counteract some of the purported benefits of “go-slow” (longer session length) hemodialysis.