Long-Term Effects of Frequent In–Center Hemodialysis
Open Access
- 14 October 2015
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Journal of the American Society of Nephrology
- Vol. 27 (6), 1830-1836
- https://doi.org/10.1681/asn.2015040426
Abstract
The Frequent Hemodialysis Network Daily Trial randomized 245 patients to receive six (frequent) or three (conventional) in–center hemodialysis sessions per week for 12 months. As reported previously, frequent in–center hemodialysis yielded favorable effects on the coprimary composite outcomes of death or change in left ventricular mass and death or change in self–reported physical health. Here, we determined the long-term effects of the 12-month frequent in–center hemodialysis intervention. We determined the vital status of patients over a median of 3.6 years (10%–90% range, 1.5–5.3 years) after randomization. Using an intention to treat analysis, we compared the mortality hazard in randomized groups. In a subset of patients from both groups, we reassessed left ventricular mass and self–reported physical health a year or more after completion of the intervention; 20 of 125 patients (16%) randomized to frequent hemodialysis died during the combined trial and post–trial observation periods in contrast to 34 of 120 patients (28%) randomized to conventional hemodialysis. The relative mortality hazard for frequent versus conventional hemodialysis was 0.54 (95% confidence interval, 0.31 to 0.93); with censoring of time after kidney transplantation, the relative hazard was 0.56 (95% confidence interval, 0.32 to 0.99). Bayesian analysis suggested a relatively high probability of clinically significant benefit and a very low probability of harm with frequent hemodialysis. In conclusion, a 12-month frequent in–center hemodialysis intervention significantly reduced long-term mortality, suggesting that frequent hemodialysis may benefit selected patients with ESRD.Keywords
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