Evidence map›Paper›PMID 37410808›Full record

ArticleEuropace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology2023

Evaluation of a new treadmill exercise protocol to unmask type 1 Brugada electrocardiographic pattern: can we improve diagnostic yield?

Nemer L Pichara, Luciana Sacilotto, Maurício I Scanavacca, Acácio Fernandes Cardoso, Beatriz Moreira Ayub Ferreira Soares, Paola P Pn F Falcochio, Andrea M G Falcão, Natalia Olivetti, Francisco Carlos da Costa Darrieux, William A Chalela

Open access · hybridAbstract read
In one paragraph

Article in 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. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 8% 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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 13 citations in OpenAlex.

  1. Guideline
  2. Guideline
  3. Sports Cardiology in Practice: Exercise as Stressor, Signal, and Therapy.Journal of cardiovascular development and disease · 2026
    Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Beyond the type 1 pattern: comprehensive risk stratification in Brugada syndrome.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2025
    Review
  10. Brugada Syndrome and Exercise: Is It Time for a Paradigm Change?Journal of cardiovascular development and disease · 2025
    Review
  11. Observational
  12. The role for ambulatory electrocardiogram monitoring in the diagnosis and prognostication of Brugada syndrome: a sub-study of the Rare Arrhythmia Syndrome Evaluation (RASE) Brugada study.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 · 2024
    Article
  13. 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

10 authors at 1 institution in 1 country.

Nemer L PicharaDepartament of Ergometry-Instituto do Coracao (Incor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil - 05403-900.ORCID 0000-0001-7175-3593
Luciana SacilottoArrhythmia Unit-Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Av. Dr. Eneas de Carvalho Aguiar, 44 AB, CEP 05403-900 Sao Paulo, Brazil.ORCID 0000-0002-3679-5349
Maurício I ScanavaccaArrhythmia Unit-Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Av. Dr. Eneas de Carvalho Aguiar, 44 AB, CEP 05403-900 Sao Paulo, Brazil.ORCID 0000-0001-7327-2275
Acácio Fernandes CardosoElectrocardiology Service, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil - 05403-900.ORCID 0000-0002-4613-4181
Beatriz Moreira Ayub Ferreira SoaresDepartament of Ergometry-Instituto do Coracao (Incor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil - 05403-900.ORCID 0009-0000-5203-3312
Paola P Pn F FalcochioDepartament of Ergometry-Instituto do Coracao (Incor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil - 05403-900.ORCID 0009-0002-4835-9285
Andrea M G FalcãoDepartament of Ergometry-Instituto do Coracao (Incor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil - 05403-900.ORCID 0000-0003-2333-2828
Natalia OlivettiLaboratory of Genetics and Molecular Cardiology (LGMC) Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil - 05403-900.ORCID 0000-0003-1061-8982
Francisco Carlos da Costa DarrieuxArrhythmia Unit-Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Av. Dr. Eneas de Carvalho Aguiar, 44 AB, CEP 05403-900 Sao Paulo, Brazil.ORCID 0000-0001-5818-5958
William A ChalelaDepartament of Ergometry-Instituto do Coracao (Incor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil - 05403-900.ORCID 0000-0003-3751-0728
Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo · BR

Funding

Fundação de Amparo à Pesquisa do Estado de São Paulo #2016/15223-3
6 · The paper itself

Abstract

aimsHigh precordial leads (HPL) on the resting electrocardiogram (ECG) are widely used to improve diagnostic detection of type 1 Brugada ECG pattern (Br1ECGp). A parasympathetic activation marks the initial recovery phase of treadmill stress testing (TET), and this can be useful for detecting the typical ECG pattern. Our study aimed to evaluate the role of a new HPL-treadmill exercise testing (TET) protocol in detecting Br1ECGp fluctuation compared to resting HPL-ECG. METHODS AND

results74 out of 163 patients of a Brugada syndrome (BrS) Brazilian cohort (GenBra Registry) underwent exercise testing with HPL-TET protocol. Precordial leads were displayed in strategic positions in the right and left parasternal spaces. The step-by-step analysis included ECG classification (as presence or absence of Br1ECGp) in standard vs. HPL leads placement in the following sequences: resting phase, maximal exercise, and the passive recovery phase (including 'quick lay down'). For heart rate recovery (HRR) measurements and comparisons, a Student's t-test was applied. McNemar tests compared the detection of Br1ECGp. The significance level was defined as P < 0.05. Fifty-seven patients (57/74; 77%) were male, the mean age was 49.0 ± 14, 78.4% had spontaneous BrS, and the mean Shanghai score was 4.5. The HPL-TET protocol increased Br1ECGp detection by 32.4% against resting HPL-ECG (52.7% vs. 20.3%, P = 0.001) alone.

conclusionStress testing using HPL with the passive recovery phase in the supine position offers an opportunity to unmask the type 1 Br1ECGp, which could increase the diagnostic yield in this population.

Indexed as

Brugada SyndromeExercise TestBrazilChinaElectrocardiographyFemaleHumansMaleBrugada syndromeDiagnosisTreadmill exercise testingType 1 Brugada ECG pattern

Identifiers

PMID37410808
PMCPMC10325004
OpenAlexW4383371913

What OpenQuestion holds

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LicenceCC BY-NC
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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.