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. 2025 Mar;48(3):1169-1173.
doi: 10.1038/s41440-025-02103-4. Epub 2025 Jan 16.

Optimal timing for post-dialysis blood pressure measurement: relationship with home blood pressure monitoring

Rodrigo Bezerra  1 , Fernanda S Gorayeb-Polacchini  2 , Flavio Teles  3 , Luís Cláudio S Pinto  4 , Ana Carolina N Tome  2 , Marcela P Bidoia  2 , Carolina S Rezende  2 , Joaquim Barreto  5 , Roberto B Amazonas  6 , Andrei C Sposito  5 , Gabriel Q Lima  7 , Gabriel S Anjos  7 , Audes D M Feitosa  1 , Wilson Nadruz  8
Affiliations

Optimal timing for post-dialysis blood pressure measurement: relationship with home blood pressure monitoring

Rodrigo Bezerra et al. Hypertens Res. 2025 Mar.

Abstract

In hemodialysis patients, blood pressure (BP) measured at the postdialysis period (POSBP) can be used to diagnose hypertension. However, the optimal time point for POSBP remains uncertain. This cross-sectional study evaluated 210 long-term dialysis patients (66.7% men; age = 56.9 ± 15.7 years), who underwent POSBP measurements at three time points [immediately after dialysis period ended (POSBP1); after blood return (POSBP2) and after fistula hemostasis or catheter sealing (POSBP3)] and home BP monitoring (HBPM) over one week. POSBP1, POSBP2, POSBP3 and HBPM values were 139.1 ± 22.4/73.2 ± 12.5, 142.8 ± 22.8/74.3 ± 12.3, 142.8 ± 21.8/74.0 ± 12.2 and 131.2 ± 21.2/77.9 ± 12.1 mmHg, respectively. Systolic POSBP3 and POSBP2 were significantly greater (p < 0.05) than systolic POSBP1. POSBP3 had the greatest correlation with HBPM, while elevated (>130/80 mmHg) POSBP3 showed the highest numerical accuracy (AUC [95% CI] = 0.696 [0.638-0.754]) and concordance (kappa coefficient = 0.41) with elevated HBPM (≥130/80 mmHg) compared with POSBP1 and POSBP2. These findings suggest that POSBP3 may be a preferable measurement for assessment of POSBP in hemodialysis patients.

Keywords: Blood pressure; Chronic kidney disease; Dialysis; Home blood pressure.

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Conflict of interest statement

Compliance with ethical standards. Conflict of interest: The authors declare no competing interests.

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