Evidence map›Paper›PMID 32657066›Full record

ArticleJournal of clinical neurology (Seoul, Korea)2020

Heart-Rate-Based Machine-Learning Algorithms for Screening Orthostatic Hypotension.

Jung Bin Kim, Hayom Kim, Joo Hye Sung, Seol Hee Baek, Byung Jo Kim

Abstract read
In one paragraph

Article in Journal of clinical neurology (Seoul, Korea), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

  1. Trial
  2. Review
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  6. Article
  7. Sympathetic dysfunction as an early indicator of autonomic involvement in Parkinson's disease.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2024
    Article
  8. Augmented ocular vestibular-evoked myogenic potentials in postural orthostatic tachycardia syndrome.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2023
    Article
  9. Article
  10. Article
  11. Utricular dysfunction in patients with orthostatic hypotension.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2022
    Article
  12. Article
  13. Article
  14. Article
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

5 authors.

Jung Bin KimDepartment of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-8013-9349
Hayom KimDepartment of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-9991-3664
Joo Hye SungDepartment of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0003-2577-6350
Seol Hee BaekDepartment of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-3656-1833
Byung Jo KimDepartment of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea. nukbj@korea.ac.kr.ORCID https://orcid.org/0000-0002-0445-7185

Funding

Korea University K1922861Korea University Anam Hospital O1700351
6 · The paper itself

Abstract

background and purposeMany elderly patients are unable to actively stand up by themselves and have contraindications to performing the head-up tilt test (HUTT). We aimed to develop screening algorithms for diagnosing orthostatic hypotension (OH) before performing the HUTT.

methodsThis study recruited 663 patients with orthostatic intolerance (78 with and 585 without OH, as confirmed by the HUTT) and compared their clinical characteristics. Univariate and multivariate analyses were performed to investigate potential predictors of an OH diagnosis. Machine-learning algorithms were applied to determine whether the accuracy of OH prediction could be used for screening OH without performing the HUTT.

resultsDifferences between expiration and inspiration (E-I differences), expiration:inspiration ratios (E:I ratios), and Valsalva ratios were smaller in patients with OH than in those without OH. The univariate analysis showed that increased age and baseline systolic blood pressure (BP) as well as decreased E-I difference, E:I ratio, and Valsalva ratio were correlated with OH. In the multivariate analysis, increased baseline systolic BP and decreased Valsalva ratio were found to be independent predictors of OH. Using those variables as input features, the classification accuracies of the support vector machine,

conclusionsWe have identified clinical parameters that are strongly associated with OH. Machine-learning analysis using those parameters was highly accurate in differentiating OH from non-OH patients. These parameters could be useful screening factors for OH in patients who are unable to perform the HUTT.

Indexed as

heart ratemachine learningorthostatic hypotensionValsalva maneuver

Identifiers

PMID32657066
PMCPMC7354974

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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.