Comparison of Residual Kidney Function Assessment Between the Hemodialysis 2-Day and 3-Day Interdialytic Interval

Gabriella Wong, Edward Zimbudzi, Peter G. Kerr

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Background
Residual kidney function (RKF) is a dynamic marker having been shown to demonstrate fluctuations over successive days of the interdialytic interval. This study compares measured RKF between the long (LIDP) and short interdialytic intervals (SIDP).
Methods
This was a prospective cohort study. Thirty-four clinically stable, ambulatory facility hemodialysis patients were recruited. Urine samples collected in the last twelve hours of each interdialytic interval were paired with a blood test at the conclusion of each twelve-hour interval to evaluate measured RKF through a mean of urinary urea and creatinine clearances. The paired Student’s t-test and the Wilcoxon matched-pairs signed-ranks were used respectively to compare differences in assessed mean and median RKF.
Results
Although average serum creatinine (607 +/- 219 µmol/L vs. 547 +/- 192 µmol/L, p =
Conclusions
There was no statistically significant difference observed in assessed RKF between the LIDP and SIDP. Measured RKF through samples collected from the LDIP and SIDP are comparable.
Original languageEnglish
Pages (from-to)976-981
Number of pages6
JournalKidney360
Volume4
Issue number7
DOIs
Publication statusPublished - 1 Jul 2023

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