Evidence map›Paper›PMID 32449919›Full record

Trial reportThe journals of gerontology. Series A, Biological sciences and medical sciences2020

Orthostatic Blood Pressure Recovery Is Associated With the Rate of Cognitive Decline and Mortality in Clinical Alzheimer's Disease.

Rianne A A de Heus, Daan L K de Jong, Anne Rijpma, Brian A Lawlor, Marcel G M Olde Rikkert, Jurgen A H R Claassen

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The journals of gerontology. Series A, Biological sciences and medical sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.2field-weighted citation impact, top 19% of its field
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

13 citing papers in PubMed, 17 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Associations of Orthostatic Hypotension and Frailty With Dementia and Mortality in Older Adults: A Population-Based Cohort Study.The journals of gerontology. Series A, Biological sciences and medical sciences · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Rianne A A de HeusDepartment of Geriatric Medicine, Radboudumc Alzheimer Center, Radboud University Medical Center, Donders Institute for Brain Cognition and Behaviour, Nijmegen, The Netherlands.
Daan L K de JongDepartment of Geriatric Medicine, Radboudumc Alzheimer Center, Radboud University Medical Center, Donders Institute for Brain Cognition and Behaviour, Nijmegen, The Netherlands.
Anne RijpmaDepartment of Geriatric Medicine, Radboudumc Alzheimer Center, Radboud University Medical Center, Donders Institute for Brain Cognition and Behaviour, Nijmegen, The Netherlands.
Brian A LawlorMercer's Institute for Research on Ageing, St. James's Hospital, Dublin, Ireland.
Marcel G M Olde RikkertDepartment of Geriatric Medicine, Radboudumc Alzheimer Center, Radboud University Medical Center, Donders Institute for Brain Cognition and Behaviour, Nijmegen, The Netherlands.
Jurgen A H R ClaassenDepartment of Geriatric Medicine, Radboudumc Alzheimer Center, Radboud University Medical Center, Donders Institute for Brain Cognition and Behaviour, Nijmegen, The Netherlands.
Radboud University Nijmegen · NLRadboud University Medical Center · NLSt. James's Hospital · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundImpaired recovery of blood pressure (BP) after standing has been shown to be related to cognitive function and mortality in people without dementia, but its role in people with Alzheimer's disease (AD) is unknown. The aim of this study was to investigate the association of the orthostatic BP response with cognitive decline and mortality in AD.

methodsIn this post hoc analysis of a randomized controlled trial (Nilvad), we measured the beat-to-beat response of BP upon active standing in mild-to-moderate AD. This included the initial drop (nadir within 40 seconds) and recovery after 1 minute, both expressed relative to resting values. We examined the relationship between a small or large initial drop (median split) and unimpaired (≥100%) or impaired recovery (<100%) with 1.5-year change in Alzheimer's Disease Assessment-cognitive subscale (ADAS-cog) scores and all-cause mortality.

resultsWe included 55 participants (age 73.1 ± 6.2 years). Impaired BP recovery was associated with higher increases in ADAS-cog scores (systolic: β [95% confidence interval] = 5.6 [0.4-10.8], p = .035; diastolic: 7.6 [2.3-13.0], p = .006). During a median follow-up time of 49 months, 20 participants died. Impaired BP recovery was associated with increased mortality (systolic: HR [95% confidence interval] = 2.9 [1.1-7.8], p = .039; diastolic: HR [95% confidence interval] = 5.5 [1.9-16.1], p = .002). The initial BP drop was not associated with any outcome. Results were adjusted for age, sex, and intervention group.

conclusionsFailure to fully recover BP after 1 minute of standing is associated with cognitive decline and mortality in AD. As such, BP recovery can be regarded as an easily obtained marker of progression rate of AD.

Indexed as

Cognitive DysfunctionAgedAlzheimer DiseaseBiomarkersDisease ProgressionFemaleHumansHypotension, OrthostaticMaleBiomarkersAlzheimer’s diseaseBlood pressureContinuous monitoringDementiaResilience

Identifiers

PMID32449919
PMCPMC7566323
OpenAlexW3028987270

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.