Evidence map›Paper›PMID 34439578›Full record

ReviewBrain sciences2021

Heart Rate Variability Analyses in Parkinson's Disease: A Systematic Review and Meta-Analysis.

Konstantin G Heimrich, Thomas Lehmann, Peter Schlattmann, Tino Prell

Abstract readReview
In one paragraph

Review in Brain sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 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

44 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Article
  6. Heart rate variability provides prognostic value in multiple system atrophy.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
    Article
  7. Article
  8. Correlation between right vagus nerve cross-sectional area and abnormal heart rate with deep breathing in Parkinson's disease.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
    Article
  9. The brain and heart-axis in neurodegeneration and cardiovascular disease.Journal of neural transmission (Vienna, Austria : 1996) · 2026
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Autonomic dysfunction in neurodegenerative disease.Nature reviews. Neuroscience · 2025
    Review
  20. Review
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

4 authors.

Konstantin G HeimrichDepartment of Neurology, Jena University Hospital, 07747 Jena, Germany.ORCID 0000-0001-9997-2202
Thomas LehmannInstitute of Medical Statistics, Computer and Data Sciences, Jena University Hospital, 07743 Jena, Germany.
Peter SchlattmannInstitute of Medical Statistics, Computer and Data Sciences, Jena University Hospital, 07743 Jena, Germany.
Tino PrellDepartment of Neurology, Jena University Hospital, 07747 Jena, Germany.ORCID 0000-0002-6423-3108

Funding

Bundesministerium für Bildung und Forschung 01GY1804Deutsche Forschungsgemeinschaft WI 830/12-1
6 · The paper itself

Abstract

Recent evidence suggests that the vagus nerve and autonomic dysfunction play an important role in the pathogenesis of Parkinson's disease. Using heart rate variability analysis, the autonomic modulation of cardiac activity can be investigated. This meta-analysis aims to assess if analysis of heart rate variability may indicate decreased parasympathetic tone in patients with Parkinson's disease. The MEDLINE, EMBASE and Cochrane Central databases were searched on 31 December 2020. Studies were included if they: (1) were published in English, (2) analyzed idiopathic Parkinson's disease and healthy adult controls, and (3) reported at least one frequency- or time-domain heart rate variability analysis parameter, which represents parasympathetic regulation. We included 47 studies with 2772 subjects. Random-effects meta-analyses revealed significantly decreased effect sizes in Parkinson patients for the high-frequency spectral component (HFms

Indexed as

autonomic dysfunctionautonomic nervous systemheart rate variabilityParkinson’s diseasevagus nerve

Identifiers

PMID34439578
PMCPMC8394422

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.