Evidence map›Paper›PMID 22840528›Full record

ArticleJournal of the American College of Cardiology2012

Spectrum and prevalence of mutations involving BrS1- through BrS12-susceptibility genes in a cohort of unrelated patients referred for Brugada syndrome genetic testing: implications for genetic testing.

Lia Crotti, Cherisse A Marcou, David J Tester, Silvia Castelletti, John R Giudicessi, Margherita Torchio, Argelia Medeiros-Domingo, Savastano Simone, Melissa L Will, Federica Dagradi and 2 more

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of the American College of Cardiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed, 1 pooled it
14.2field-weighted citation impact, top 1% 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

82 citing papers in PubMed, 1 synthesis or guideline pooled it, 201 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Brugada syndrome.Nature reviews. Disease primers · 2025
    Review
  5. Article
  6. Clinical Management of Brugada Syndrome: Commentary From the Experts.Circulation. Arrhythmia and electrophysiology · 2024
    Review
  7. Molecular Pathways and Animal Models of Arrhythmias.Advances in experimental medicine and biology · 2024
    Article
  8. Multi-site validation of a functional assay to adjudicatemedRxiv : the preprint server for health sciences · 2023
    Article
  9. Article
  10. Review
  11. Genetic testing in children with Brugada syndrome: results from a large prospective registry.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2023
    Article
  12. Article
  13. Article
  14. Review
  15. Kir6.1 and SUR2B in Cantú syndrome.American journal of physiology. Cell physiology · 2022
    Review
  16. Review
  17. Review
  18. Case report: NovelFrontiers in pediatrics · 2022
    Article
  19. Article
  20. Cardiogenetics, 25 years a growing subspecialism.Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation · 2020
    Review

22 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 4 institutions in 5 countries.

Lia CrottiDepartment of Lung, Blood, and Heart, Section of Cardiology, University of Pavia, Pavia, Italy.
Cherisse A Marcou
David J Tester
Silvia Castelletti
John R Giudicessi
Margherita Torchio
Argelia Medeiros-Domingo
Savastano Simone
Melissa L Will
Federica Dagradi
Peter J Schwartz
Michael J Ackerman
Mayo Clinic · USUniversity of Pavia · ITPoliclinico San Matteo Fondazione · ITUniversity of Cape Town · ZA

Funding

Cardiac Channel Mutations in Sudden Infant Death Syndrome (SIDS)R01HD042569 · NICHD · MAYO CLINIC ROCHESTER · PI ACKERMAN, MICHAEL JOHN · 2002 to 2017
$6.9M
Predoctoral Training Program in Molecular PharmacologyT32GM072474 · NIGMS · MAYO CLINIC ROCHESTER · PI KARNITZ, LARRY M · 2005 to 2020
$2.4M
The Role of The Transient Outward Current In Genetically Elusive Sudden DeathF30HL106993 · NHLBI · MAYO CLINIC ROCHESTER · PI GIUDICESSI, JOHN R. · 2011 to 2014
$134k
NHLBI NIH HHS F30 HL106993NHLBI NIH HHS F30-HL106993NICHD NIH HHS R01 HD042569NIGMS NIH HHS T32 GM072474
6 · The paper itself

Abstract

objectivesThe aim of this study was to provide the spectrum and prevalence of mutations in the 12 Brugada syndrome (BrS)-susceptibility genes discovered to date in a single large cohort of unrelated BrS patients.

backgroundBrS is a potentially lethal heritable arrhythmia syndrome diagnosed electrocardiographically by coved-type ST-segment elevation in the right precordial leads (V1 to V3; type 1 Brugada electrocardiographic [ECG] pattern) and the presence of a personal/family history of cardiac events.

methodsUsing polymerase chain reaction, denaturing high-performance liquid chromatography, and DNA sequencing, comprehensive mutational analysis of BrS1- through BrS12-susceptibility genes was performed in 129 unrelated patients with possible/probable BrS (46 with clinically diagnosed BrS [ECG pattern plus personal/family history of a cardiac event] and 83 with a type 1 BrS ECG pattern only).

resultsOverall, 27 patients (21%) had a putative pathogenic mutation, absent in 1,400 Caucasian reference alleles, including 21 patients with an SCN5A mutation, 2 with a CACNB2B mutation, and 1 each with a KCNJ8 mutation, a KCND3 mutation, an SCN1Bb mutation, and an HCN4 mutation. The overall mutation yield was 23% in the type 1 BrS ECG pattern-only patients versus 17% in the clinically diagnosed BrS patients and was significantly greater among young men<20 years of age with clinically diagnosed BrS and among patients who had a prolonged PQ interval.

conclusionsWe identified putative pathogenic mutations in ∼20% of our BrS cohort, with BrS genes 2 through 12 accounting for <5%. Importantly, the yield was similar between patients with only a type 1 BrS ECG pattern and those with clinically established BrS. The yield approaches 40% for SCN5A-mediated BrS (BrS1) when the PQ interval exceeds 200 ms. Calcium channel-mediated BrS is extremely unlikely in the absence of a short QT interval.

Indexed as

Genetic Predisposition to DiseaseMutationAdolescentAdultAgedAged, 80 and overBrugada SyndromeChildDiagnosis, DifferentialDNADNA Mutational AnalysisElectrocardiographyFemaleFollow-Up StudiesGenetic TestingHumansDNA

Identifiers

PMID22840528
PMCPMC3624764
OpenAlexW1540071197

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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.