Evidence map›Paper›PMID 33854059›Full record

ArticleNPJ Parkinson's disease2021

Delayed orthostatic hypotension in Parkinson's disease.

Sang-Won Yoo, Joong-Seok Kim, Ji-Yeon Yoo, Eunkyeong Yun, Uicheul Yoon, Na-Young Shin, Kwang-Soo Lee

Abstract read
In one paragraph

Article in NPJ Parkinson's disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
–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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Prevalence and impact of orthostatic hypotension in Parkinson's disease: a systematic review and meta-analysis.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2025
    Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Observational
  15. Article
  16. 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

7 authors.

Sang-Won YooDepartment of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.ORCID http://orcid.org/0000-0002-7988-0228
Joong-Seok KimDepartment of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea. neuronet@catholic.ac.kr.ORCID http://orcid.org/0000-0001-8087-7977
Ji-Yeon YooDepartment of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.ORCID http://orcid.org/0000-0003-1969-8309
Eunkyeong YunDepartment of Biomedical Engineering, College of Health and Medical Science, Catholic University of Daegu, Gyeongbuk, Republic of Korea.ORCID http://orcid.org/0000-0002-2274-0806
Uicheul YoonDepartment of Biomedical Engineering, College of Health and Medical Science, Catholic University of Daegu, Gyeongbuk, Republic of Korea.ORCID http://orcid.org/0000-0002-9308-0040
Na-Young ShinDepartment of Radiology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.ORCID http://orcid.org/0000-0003-1157-6366
Kwang-Soo LeeDepartment of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.ORCID http://orcid.org/0000-0002-6428-5995

Funding

National Research Foundation of Korea (NRF) NRF-2017R1D1A1B06028086
6 · The paper itself

Abstract

Orthostatic hypotension (OH) is relatively common in the early stage of Parkinson's disease (PD). It is divided into delayed OH and classical OH. Classical OH in PD has been investigated widely, however, the clinical implications of delayed OH in PD have seldom been studied. The purpose of this study is to characterize delayed OH in PD. A total of 285 patients with early drug-naïve PD were enrolled and divided into three groups according to orthostatic change: no-OH, delayed OH, and classical OH. The disease severity in terms of motor, non-motor, and cognitive functions was assessed. The cortical thickness of 82 patients was analyzed with brain magnetic resonance imaging. The differences among groups and linear tendency in the order of no-OH, delayed OH, and classical OH were investigated. Seventy-seven patients were re-evaluated. Initial and follow-up evaluations were explored to discern any temporal effects of orthostasis on disease severity. Sixty-four (22.5%) patients were defined as having delayed OH and 117 (41.1%) had classical OH. Between-group comparisons revealed that classical OH had the worst outcomes in motor, non-motor, cognitive, and cortical thickness, compared to the other groups. No-OH and delayed OH did not differ significantly. Linear trends across the pre-ordered OH subtypes found that clinical parameters worsened along with the orthostatic challenge. Clinical scales deteriorated and the linear gradient was maintained during the follow-up period. This study suggests that delayed OH is a mild form of classical OH in PD. PD with delayed OH has milder disease severity and progression.

Identifiers

PMID33854059
PMCPMC8047032

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.