期刊
HEMODIALYSIS INTERNATIONAL
卷 16, 期 4, 页码 473-480出版社
WILEY
DOI: 10.1111/j.1542-4758.2012.00701.x
关键词
Hemodialysis; dialysate sodium; individualized dialysate sodium; sodium gradient; interdialytic weight gain
资金
- Satellite Hans Wolf Research fellowship award
Recent studies have focused on the association between dialysate sodium (Na+) prescriptions and interdialytic weight gain (IDWG). We report on a case series of 13 patients undergoing conventional, thrice-weekly in-center hemodialysis with an individualized dialysate Na+ prescription. Individualized dialysate Na+ was achieved in all patients through a stepwise weekly reduction of the standard dialysate Na+ prescription (140?mEq/L) by 23?mEq/L until reaching a Na+ gradient of -2?mEq/L (dialysate Na+ minus average plasma Na+ over the preceding 3 months). Interdialytic weight gain, with and without indexing to dry weight (IDWG%), blood pressure, and the proportion of treatments with cramps, intradialytic hypotension (drop in systolic blood pressure >30?mmHg) and intradialytic hypotension requiring an intervention were reviewed. At the beginning of the observation period, the pre-hemodialysis (HD) plasma Na+ concentration ranged from 130 to 141?mEq/L. When switched from the standard to the individualized dialysate Na+ concentration, IDWG% decreased from 3.4%?+/-?1.6% to 2.5%?+/-?1.0% (P?=?0.003) with no change in pre- or post-HD systolic or diastolic blood pressures (all P?>?0.05). We found no significant change in the proportion of treatments with cramps (6% vs. 13%), intradialytic hypotension (62% vs. 65%), or intradialytic hypotension requiring an intervention (29% vs. 33%). Individualized reduction of dialysate Na+ reduces IDWG% without significantly increasing the frequency of cramps or hypotension.
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