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Clin Nephrol. 2019 Jul 26. doi: 10.5414/CN109660. [Epub ahead of print]

Temporal trends in fluid management with incremental hemodialysis
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Abstract

BACKGROUND:

Incremental hemodialysis (HD) is seldom prescribed in the United States. This study describes longitudinal changes in volume management in patients with incident end-stage kidney disease (ESKD) initiated on bi-weekly (twice a week) HD, later converted to thrice-weekly HD.

MATERIALS AND METHODS:

23 patients (mean age 65.6 years, 48% male, and 30% black) were included. Repeated measurement analysis of regression was used to test for differences in interdialytic weight gain (IDWG) and ultrafiltration rate (UFR) over three dialysis periods: the first 3 months of bi-weekly HD, the last 3 months of bi-weekly HD, and the first 3 months of thrice-weekly HD.

RESULTS:

The mean transition time to thrice-weekly HD was 332.9 days. Compared to the first 3 months of HD, the IDWG and UFR increased by 0.6 kg and 2.2 mL/kg/h in the last 3 months of bi-weekly HD (p = 0.02 and 0.009, respectively) and by 0.7 kg and 2.1 mL/kg/h in the first 3 months of thrice-weekly HD (p = 0.002). The average proportion of patients with IDWG > 5.7% of the dry weight was 0% in the first 3 months of bi-weekly HD, 12% in the last 3 months of bi-weekly HD, and 4% in the first 3 months of thrice-weekly HD; while the average proportion of patients with UFR > 10 mL/kg/h was 16%, 39%, and 25%, respectively.

CONCLUSION:

Fluid management in incident-ESKD patients receiving bi-weekly HD deteriorates prior to conversion to thrice-weekly HD. Further studies are needed to optimize the prescription of incremental HD.
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PMID:
31347496
DOI:
10.5414/CN109660

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