Evidence map›Paper›PMID 23936059›Full record

Trial reportPloS one2013

Long QT interval in Turner syndrome--a high prevalence of LQTS gene mutations.

Christian Trolle, Kristian H Mortensen, Lisbeth N Pedersen, Agnethe Berglund, Henrik K Jensen, Niels H Andersen, Claus H Gravholt

Registry-linked trialOpen access · goldAbstract readClinical Trial
In one paragraph

Trial report in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00624949 (Aortic Dimensions, 24hour Ambulatory Blood Pressure and Sympathovagal Tone in Turner Syndrome. In Relation to Aortic Dilatation and Dissection.), which is not on this map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.0field-weighted citation impact, top 21% 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.

NCT00624949 unknown statusnot on this map

Aortic Dimensions, 24hour Ambulatory Blood Pressure and Sympathovagal Tone in Turner Syndrome. In Relation to Aortic Dilatation and Dissection.

TypeobservationalSponsorUniversity of AarhusRan2003 to 2012Enrolled102ConditionsTurner Syndrome
3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Sexual Dimorphisms, Anti-Hormonal Therapy and Cardiac Arrhythmias.International journal of molecular sciences · 2021
    Review
  7. No QTc Prolongation in Girls and Women with Turner Syndrome.The Journal of clinical endocrinology and metabolism · 2020
    Article
  8. "Donating our bodies to science": A discussion about autopsy and organ donation in Turner syndrome.American journal of medical genetics. Part C, Seminars in medical genetics · 2019
    Review
  9. Article
  10. Author`s Reply.Anatolian journal of cardiology · 2018
    Article
  11. Article
  12. Article
  13. Article
  14. 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

7 authors at 1 institution in 2 countries.

Christian TrolleDepartment of Endocrinology and Internal Medicine and Medical Research Laboratories, Aarhus University Hospital, Aarhus, Denmark.
Kristian H Mortensen
Lisbeth N Pedersen
Agnethe Berglund
Henrik K Jensen
Niels H Andersen
Claus H Gravholt
Aarhus University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesQT-interval prolongation of unknown aetiology is common in Turner syndrome. This study set out to explore the presence of known long QT mutations in Turner syndrome and to examine the corrected QT-interval (QTc) over time and relate the findings to the Turner syndrome phenotype.

methodsAdult women with Turner syndrome (n = 88) were examined thrice and 68 age-matched healthy controls were examined once. QTc was measured by one blinded reader (intra-reader variability: 0.7%), and adjusted for influence of heart rate by Bazett's (bQTc) and Hodges's formula (hQTc). The prevalence of mutations in genes related to Long QT syndrome was determined in women with Turner syndrome and a QTc >432.0 milliseconds (ms). Echocardiographic assessment of aortic valve morphology, 24-hour blood pressures and blood samples were done.

resultsThe mean hQTc in women with Turner syndrome (414.0 ± 25.5 ms) compared to controls (390.4 ± 17.8 ms) was prolonged (p<0.001) and did not change over time (416.9 ± 22.6 vs. 415.6 ± 25.5 ms; p =0.4). 45,X karyotype was associated with increased hQTc prolongation compared to other Turner syndrome karyotypes (418.2 ± 24.8 vs. 407.6 ± 25.5 ms; p = 0.055). In women with Turner syndrome and a bQTc >432 ms, 7 had mutations in major Long QT syndrome genes (SCN5A and KCNH2) and one in a minor Long QT syndrome gene (KCNE2).

conclusionThere is a high prevalence of mutations in the major LQTS genes in women with TS and prolonged QTc. It remains to be settled, whether these findings are related to the unexplained excess mortality in Turner women. CLINICAL

trial registrationNCT00624949. https://register.clinicaltrials.gov/prs/app/action/SelectProtocol/sid/S0001FLI/selectaction/View/ts/3/uid/U000099E.

Indexed as

AgedAortic ValveCase-Control StudiesDeath, Sudden, CardiacElectrocardiographyERG1 Potassium ChannelEther-A-Go-Go Potassium ChannelsFemaleGenotypeHeart RateHumansKaryotypingLong QT SyndromeMiddle AgedMutation RateNAV1.5 Voltage-Gated Sodium ChannelERG1 Potassium ChannelEther-A-Go-Go Potassium ChannelsKCNE2 protein, humanKCNH2 protein, humanNAV1.5 Voltage-Gated Sodium ChannelPotassium Channels, Voltage-GatedSCN5A protein, human

Identifiers

PMID23936059
PMCPMC3723856
OpenAlexW2003878272

What OpenQuestion holds

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Registered trials

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.