Open AccessOutcome of individualized dialysate sodium concentration for hemodialysis patients
Author(s) -
Yasser Elshahawy,
Dawlat Sany,
Sherif M. Shawky
Publication year - 2013
Publication title -
saudi journal of kidney diseases and transplantation/našrat amraḍ wa zira'aẗ al-kulaẗ
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.268
H-Index - 30
eISSN - 2320-3838
pISSN - 1319-2442
DOI - 10.4103/1319-2442.111025
Subject(s) - medicine , hemodialysis , sodium , outcome (game theory) , intensive care medicine , chemistry , organic chemistry , mathematics , mathematical economics
To evaluate the individualization of dialysate sodium (Na + ) concentration in hemodialysis (HD), we studied 40 stable chronic HD patients in a single-blind crossover design. They underwent 36 consecutive HD sessions with the dialysate Na + concentration set at 138 mmol/L, followed by 36 sessions of dialysate Na + set to match the patients average pre-HD plasma Na + levels. We multiplied the midweek pre-HD measured Na + by the Donnan coefficient of 0.95 (individualized Na + ). Pre-HD Na + dialysis sodium levels were nearly constant, with no variation between the two phases and a mean of 137.45 ± 2.04 mmol/L. Post-HD serum Na + was significantly higher during the standard phase (139.7 ± 2 mmol/L) than during the individualized phase (137.1 ± 1.6 mmol/L). Also, interdialytic weight gain (IDWG) was significantly more reduced during the individualized phase (3.25 ± 0.56%) than during the standard phase (3.94 ± 0.92%), P <0.001. Episodes of distressing symptoms including headache, muscle cramps and hypotension were significantly less frequent in the individualized phase. The mean of the pre-HD and post-HD systolic and diastolic blood pressures significantly decreased during the individualized phase, and we could reduce the doses of antihypertensive drugs in 10 (33.33%) patients. Individualized dialysate Na + concentration was associated with a decrease in IDWG and dialysis hypotension and related symptoms and better BP control in stable chronic HD patients.