ArticlePhysiological reports2023
Cerebral blood flow pulsatility and cerebral artery stiffness acutely decrease during hemodialysis.
Article in Physiological reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 3 citations in OpenAlex.
- Ankle-brachial index rather than brachial-ankle pulse wave velocity is associated with cognitive function in older adults undergoing incident hemodialysis: a multicentre cross-sectional study.Annals of medicine · 2026Article
- Intradialytic cerebral blood flow reduction occurs irrespective of vascular access type: a comparative study.BMC nephrology · 2026Article
- Cerebral blood flow pulsatility and cerebral artery stiffness acutely decrease during hemodialysis.Physiological reports · 2023Article
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Authors and funding
6 authors at 2 institutions in 1 country.
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Abstract
End-stage kidney disease (ESKD) is associated with increased arterial stiffness and cognitive impairment. Cognitive decline is accelerated in ESKD patients on hemodialysis and may result from repeatedly inappropriate cerebral blood flow (CBF). The aim of this study was to examine the acute effect of hemodialysis on pulsatile components of CBF and their relation to acute changes in arterial stiffness. In eight participants (age: 63 ± 18 years, men: 5), CBF was estimated using middle cerebral artery blood velocity (MCAv) assessed with transcranial Doppler ultrasound before, during, and after a single hemodialysis session. Brachial and central blood pressure, along with estimated aortic stiffness (eAoPWV) were measured using an oscillometric device. Arterial stiffness from heart to MCA was measured as the pulse arrival time (PAT) between electrocardiogram (ECG) and transcranial Doppler ultrasound waveforms (cerebral PAT). During hemodialysis, there was a significant reduction in mean MCAv (-3.2 cm/s, p < 0.001), and systolic MCAv (-13.0 cm/s, p < 0.001). While baseline eAoPWV (9.25 ± 0.80 m/s) did not significantly change during hemodialysis, cerebral PAT increased significantly (+0.027 , p < 0.001) and was associated with reduced pulsatile components of MCAv. This study shows that hemodialysis acutely reduces stiffness of arteries perfusing the brain along with pulsatile components of blood velocity.
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