Evidence map›Paper›PMID 17493840›Full record

ArticleSeizure2007

Heart rate variability in patients with untreated epilepsy.

Håkan Persson, M Ericson, T Tomson

Abstract read
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In one paragraph

Article in Seizure, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

9 citing papers in PubMed, 56 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Observational
  6. Alteration of circadian rhythm during epileptogenesis: implications for the suprachiasmatic nucleus circuits.International journal of physiology, pathophysiology and pharmacology · 2017
    Review
  7. Article
  8. Article
  9. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Håkan PerssonDepartment of Clinical Neuroscience, Karolinska Institutet, Karolinska Hospital, Stockholm, Sweden. hakan.persson@karolinska.se
M Ericson
T Tomson
Karolinska Institutet · SESwedish School of Sport and Health Sciences · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSeveral studies have reported reduced heart rate variability (HRV) in patients with chronic epilepsy under treatment with antiepileptic drugs. This impairment in cardiac autonomic control might be of relevance in relation to the risk of sudden unexpected death in patients with chronic refractory epilepsy. Little information is, however, available on HRV in untreated patients with newly diagnosed epilepsy.

methodsWe used spectral analysis to assess HRV based on 24h ambulatory EKG recordings in 22 consecutive untreated patients with epilepsy (15 with localization-related, 4 with generalized idiopathic and 3 with undetermined epilepsy). The HRV in these patients was compared with 22 age and sex matched healthy controls.

resultsWhen analysing the full 24h recordings, there were no significant difference between the patients and the controls in any of the analyzed measures of HRV: standard deviation of RR-intervals (P=0.191), total power (P=0.170), very low frequency power (P=0.329), low frequency power (LF) (P=0.161), high frequency power (HF) (P=0.186) and the LF/HF ratio (P=0.472). The results were very similar for daytime and nighttime recordings.

conclusionOur results suggest that there is no major effect of epilepsy as such on HRV in patients with untreated epilepsy. It should be emphasized that this study assessed newly diagnosed patients and that the results may not be applicable to patients with chronic epilepsy.

Indexed as

AdultAgedElectrocardiographyElectrocardiography, AmbulatoryElectroencephalographyEpilepsyFemaleHeart RateHumansMaleMiddle AgedSpectrum Analysis

Identifiers

PMID17493840
OpenAlexW2124953033

What OpenQuestion holds

Textmetadata
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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.