Evidence map›Paper›PMID 42294770›Full record

Observational studyJournal of the American Heart Association2026

Long-Term Blood Pressure Variability in Cerebral Amyloid Angiopathy is Associated with Ischemic Brain Injury and Cognitive Decline.

Lukas Sveikata, Maria Clara Zanon Zotin, Dorothee Schoemaker, Yuan Ma, Valentina Perosa, Anthipa Chokesuwattanaskul, Andreas Charidimou, Marco Duering, M Edip Gurol, Frédéric Assal and 2 more

Erratum issuedAbstract readObservational Study
In one paragraph

Observational study in Journal of the American Heart Association, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Observational
  2. Observational
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors.

Lukas SveikataJ. Philip Kistler Stroke Research Center, Department of Neurology Massachusetts General Hospital, Harvard Medical School Boston MA USA.ORCID 0000-0001-8015-7929
Maria Clara Zanon ZotinJ. Philip Kistler Stroke Research Center, Department of Neurology Massachusetts General Hospital, Harvard Medical School Boston MA USA.ORCID 0000-0001-6604-0660
Dorothee SchoemakerJ. Philip Kistler Stroke Research Center, Department of Neurology Massachusetts General Hospital, Harvard Medical School Boston MA USA.ORCID 0000-0003-2587-8883
Yuan MaDepartment of Epidemiology Harvard T.H. Chan School of Public Health Boston MA USA.ORCID 0000-0002-0207-3620
Valentina PerosaJ. Philip Kistler Stroke Research Center, Department of Neurology Massachusetts General Hospital, Harvard Medical School Boston MA USA.ORCID 0000-0002-3551-5237
Anthipa ChokesuwattanaskulJ. Philip Kistler Stroke Research Center, Department of Neurology Massachusetts General Hospital, Harvard Medical School Boston MA USA.ORCID 0000-0001-7973-8267
Andreas CharidimouJ. Philip Kistler Stroke Research Center, Department of Neurology Massachusetts General Hospital, Harvard Medical School Boston MA USA.ORCID 0000-0001-5891-337X
Marco DueringInstitute for Stroke and Dementia Research (ISD) LMU University Hospital, LMU Munich Munich Germany.ORCID 0000-0003-2302-3136
M Edip GurolJ. Philip Kistler Stroke Research Center, Department of Neurology Massachusetts General Hospital, Harvard Medical School Boston MA USA.ORCID 0000-0002-2169-4457
Frédéric AssalDivision of Neurology, Department of Clinical Neurosciences Geneva University Hospital and University of Geneva Geneva Switzerland.ORCID 0000-0003-0999-1034
Steven M GreenbergJ. Philip Kistler Stroke Research Center, Department of Neurology Massachusetts General Hospital, Harvard Medical School Boston MA USA.ORCID 0000-0003-1792-8887
Anand ViswanathanJ. Philip Kistler Stroke Research Center, Department of Neurology Massachusetts General Hospital, Harvard Medical School Boston MA USA.ORCID 0000-0001-5398-1816

Funding

Molecular and Physiological Mechanisms of Hypertensive Cerebral MicroangiopathyR01NS114526 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI GUROL, MAHMUT EDIP · 2020 to 2024
$4.4M
NINDS NIH HHS R01 NS114526
6 · The paper itself

Abstract

backgroundLong-term blood pressure variability (BPV) has been proposed as a potential risk factor for dementia and cerebral small vessel disease progression. In this study, we investigate the association between BPV, brain injury, and cognitive decline in probable cerebral amyloid angiopathy (CAA).

methodsUsing a prospective memory clinic cohort, we enrolled 102 participants, including 52 with probable CAA and mild cognitive symptoms. BPV was assessed using a coefficient of variation derived from outpatient BP measurements (median 12) over 5 years before imaging with 3-tesla research magnetic resonance imaging. We measured peak width of skeletonized mean diffusivity and neuroimaging markers of CAA, including lacunes and cortical cerebral microinfarcts. Using regression models, we evaluated the association of BPV with white matter integrity and whether CAA modified this association. We also examined the association of BPV with longitudinal cognitive decline.

resultsSystolic BPV had a dose-dependent association with peak width of skeletonized mean diffusivity (standardized β=0.22, 95% CI: 0.06-0.39,

conclusionsLong-term BPV had a dose-dependent association with altered white matter integrity, ischemic brain injury, and cognitive decline. Controlling BPV might be a potential novel therapeutic target to prevent cognitive decline in memory clinic patients with probable CAA and mild cognitive symptoms.

Indexed as

Blood PressureBrain IschemiaCerebral Amyloid AngiopathyCognitive DysfunctionAgedAged, 80 and overFemaleHumansMagnetic Resonance ImagingMaleNeuroimagingNeuropsychological TestsProspective StudiesTime FactorsWhite Mattercerebral amyloid angiopathycognitive impairmenthypertensionmemory clinicstroke

Identifiers

PMID42294770
PMCPMC13323804

What OpenQuestion holds

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Registered trials

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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 OpenQuestion graph.