Evidence map›Paper›PMID 25071706›Full record

ArticleFrontiers in neurology2014

Sleep disturbances and autonomic dysfunction in patients with postural orthostatic tachycardia syndrome.

Julia Mallien, Stefan Isenmann, Anne Mrazek, Carl-Albrecht Haensch

Abstract read
In one paragraph

Article in Frontiers in neurology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

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

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Autonomic dysfunction in idiopathic hypersomnia: an overlooked association and potential management.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2022
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Cognitive and psychological issues in postural tachycardia syndrome.Autonomic neuroscience : basic & clinical · 2018
    Review
  12. Health-related quality of life and suicide risk in postural tachycardia syndrome.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2017
    Article
  13. Article
  14. Article
  15. Article
  16. Objective Sleep Assessments in Patients with Postural Tachycardia Syndrome using Overnight Polysomnograms.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2016
    Article
  17. Sleep disorders in patients with postural tachycardia syndrome.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2016
    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

4 authors.

Julia MallienSleep Unit, Department of Neurology and Neurophysiology, HELIOS Klinikum Wuppertal, University of Witten/Herdecke , Wuppertal , Germany.
Stefan IsenmannSleep Unit, Department of Neurology and Neurophysiology, HELIOS Klinikum Wuppertal, University of Witten/Herdecke , Wuppertal , Germany.
Anne MrazekSleep Unit, Department of Neurology and Neurophysiology, HELIOS Klinikum Wuppertal, University of Witten/Herdecke , Wuppertal , Germany.
Carl-Albrecht HaenschDepartment of Neurology, Kliniken Maria Hilf GmbH, University of Witten/Herdecke , Mönchengladbach , Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many patients with postural tachycardia syndrome (PoTS) suffer from fatigue, daytime sleepiness, and sleeping disturbances. The objective of this study was to compare subjective and objective sleep quality of PoTS patients with a group of healthy controls. All patients completed a Pittsburgh Sleep Quality Index questionnaire and the Epworth Sleepiness Scale. The patients sleep architecture, heart rate, and heart rate variability (HRV) measurements were taken during one night at the sleep laboratorium. All data was collected at the Sleep Unit, at Helios Klinikum Wuppertal. Thirty-eight patients diagnosed with PoTS were compared to 31 healthy controls, matched in age and gender. Patients with PoTS reached significantly higher scores in sleep questionnaires, which means that they were more sleepy and had a lower sleep quality. Polysomnography showed a significantly higher proportion of stage 2 sleep. The results of HRV analysis in different sleep stages confirmed changes in autonomic activity in both groups. PoTS patients, however, showed a diminished variability of the low-frequency (LF) band, high-frequency (HF) band, and LF/HF ratio in different sleep stages. It can therefore be gathered that PoTS could be considered as potential differential diagnosis for sleep disturbances since PoTS patients had a subjective diminished sleep quality, reached higher levels of daytime sleepiness, and showed a higher proportion of stage 2 sleep. PoTS patients showed furthermore a reduction of LF/HF ratio variability in different sleep stages.

Indexed as

autonomic dysfunctionheart rate variabilityinsomniaPoTSsleep disturbances

Identifiers

PMID25071706
PMCPMC4083342

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.