Evidence mapPaperPMID 39917119Full record

ArticleCureus2025

The Effect of Low Dialysate Sodium Concentration on Ambulatory Aortic Blood Pressure and Arterial Stiffness in Patients With Intradialytic Hypertension: A Randomized Crossover Study.

Fotini Iatridi, Marieta P Theodorakopoulou, Robert Ekart, Artemios G Karagiannidis, Konstantinos Malandris, Efstathios Xagas, Ioanna Revela, Ioannis Tsouchnikas, Panagiotis Giamalis, Pantelis Sarafidis

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Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Fotini IatridiFirst Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, GRC.
Marieta P TheodorakopoulouFirst Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, GRC.
Robert EkartDepartment of Dialysis, Clinic for Internal Medicine, University Medical Center Maribor, Maribor, SVN.
Artemios G KaragiannidisFirst Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, GRC.
Konstantinos MalandrisClinical Research and Evidence-Based Medicine Unit, Aristotle University of Thessaloniki, Thessaloniki, GRC.
Efstathios XagasNephrology, Frontis Dialysis Center, Athens, GRC.
Ioanna RevelaNephrology, Frontis Dialysis Center, Athens, GRC.
Ioannis TsouchnikasFirst Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, GRC.
Panagiotis GiamalisFirst Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, GRC.
Pantelis SarafidisFirst Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, GRC.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIntradialytic hypertension (IDH) is associated with increased cardiovascular risk. Arterial stiffness is a strong predictor of adverse outcomes in dialysis patients and may contribute to the development of the phenomenon, as patients with IDH exhibit higher ambulatory aortic blood pressure (BP) and arterial stiffness parameters than patients without IDH.  Methods: This analysis examined the effect of low (137mEq/L) compared to standard (140mEq/L) dialysate sodium concentration on 48-hour aortic BP and arterial stiffness parameters in IDH patients. In this prespecified secondary analysis of a randomized, single-blind, crossover study, 29 IDH patients underwent four hemodialysis sessions with low followed by four sessions with standard dialysate sodium or vice-versa. Mean 48-hour, pre-/post-dialysis and intradialytic aortic systolic/diastolic BP (SBP/DBP), and arterial stiffness indices were assessed.

resultsMean 48-hour aortic SBP/DBP were significantly lower with low versus standard dialysate sodium (124.1±16.4/83.0±14.1mmHg vs 128.5±12.9/85.8±14.1mmHg, p=0.013/p=0.006 respectively). Low dialysate sodium also significantly reduced pre-dialysis aortic SBP (126.4±17.4 vs 135.6±18.6mmHg, p=0.044) and post-dialysis aortic SBP (137.0±20.0 vs 147.9±18.1mmHg, p=0.01). All wave reflection indices were numerically lower with low dialysate sodium; among them, heart rate-adjusted augmentation index (AIx(75)) was significantly lower during the 48-hour (26.3±6.7 vs 27.7±5.8%, p=0.03), 44-hour, day-time and intradialytic periods. Low dialysate sodium resulted in decreased 48-hour pulse wave velocity (PWV) (9.9±2.5 vs 10.1±2.6m/s, p=0.008); similar differences for PWV were observed during all examined time intervals.

conclusionsIn conclusion, ambulatory 48-hour aortic BP and arterial stiffness parameters were significantly lower using low compared to standard dialysate sodium in IDH patients. These findings further support the use of low dialysate sodium for BP management in this population.

Indexed as

ambulatory blood pressure monitoringaortic blood pressurearterial stiffnessdialysate sodium concentrationintradialytic hypertension

Identifiers

PMID39917119
PMCPMC11801399

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.