Evidence map›Paper›PMID 29748178›Full record

ArticleJournal of the American Heart Association2018

Prognostic Significance of the Sodium Channel Blocker Test in Patients With Brugada Syndrome.

Akira Ueoka, Hiroshi Morita, Atsuyuki Watanabe, Yoshimasa Morimoto, Satoshi Kawada, Motomi Tachibana, Masakazu Miyamoto, Koji Nakagawa, Nobuhiro Nishii, Hiroshi Ito

Open access · goldAbstract read
In one paragraph

Article in Journal of the American Heart Association, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 15% 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, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Guideline
  2. Article
  3. Article
  4. Article
  5. Article
  6. Clinical Management of Brugada Syndrome: Commentary From the Experts.Circulation. Arrhythmia and electrophysiology · 2024
    Review
  7. Article
  8. Review
  9. Heart rate variability and microvolt T wave alternans changes during ajmaline test may predict prognosis in Brugada syndrome.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2023
    Article
  10. Article
  11. Suspected hyponatremia-induced Brugada phenocopy.International medical case reports journal · 2019
    Article
  12. Type-I Paradox of Brugada Syndrome.Journal of the American Heart Association · 2018
    Article
  13. Channelopathies - An update 2018.Indian pacing and electrophysiology journal
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 1 institution in 1 country.

Akira UeokaDepartment of Cardiovascular Medicine, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Hiroshi MoritaDepartment of Cardiovascular Therapeutics, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan hmorita@cc.okayama-u.ac.jp.
Atsuyuki WatanabeDepartment of Cardiovascular Medicine, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Yoshimasa MorimotoDepartment of Cardiovascular Medicine, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Satoshi KawadaDepartment of Cardiovascular Medicine, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Motomi TachibanaDepartment of Cardiovascular Medicine, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Masakazu MiyamotoDepartment of Cardiovascular Medicine, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Koji NakagawaDepartment of Cardiovascular Medicine, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Nobuhiro NishiiDepartment of Cardiovascular Therapeutics, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Hiroshi ItoDepartment of Cardiovascular Medicine, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Okayama University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA drug provocation test using a sodium channel blocker (SCB) can unmask a type 1 ECG pattern in patients with Brugada syndrome. However, the prognostic value of the results of an SCB challenge is limited in patients with non-type 1 ECG. We investigated the associations of future risk for ventricular fibrillation with SCB-induced ECG changes and ventricular tachyarrhythmias (VTAs). METHODS AND

resultsWe administered intravenous pilsicainide to 245 consecutive patients with Brugada syndrome (181 patients with spontaneous type 1 ECG, 64 patients with non-type 1 ECG). ECG parameters before and after the test and occurrence of drug-induced VTAs were evaluated. During a mean follow-up period of 113±57 months, fatal VTA events occurred in 31 patients (sudden death: n=3, ventricular tachycardia/ventricular fibrillation: n=28). Symptomatic patients and spontaneous type 1 ECG were associated with future fatal arrhythmic events. Univariable analysis of ECG parameters after the test showed that long PQ and QRS intervals, high ST level, and SCB-induced VTAs were associated with later VTA events during follow-up. Multivariable analysis showed that symptomatic patients, high ST level (V1) ≥0.3 mV after the test, and SCB-induced VTAs were independent predictors for future fatal arrhythmic events (hazard ratios: 3.28, 2.80, and 3.62, 95% confidence intervals: 1.54-7.47, 1.32-6.35, and 1.64-7.75, respectively;

conclusionsSCB-induced VTAs and ST-segment augmentation are associated with an increased risk of the development of ventricular tachycardia/ventricular fibrillation events during follow-up in patients with Brugada syndrome.

Indexed as

ElectrocardiographyAdministration, IntravenousAdultAgedBrugada SyndromeDeath, Sudden, CardiacFemaleHumansLidocaineMaleMiddle AgedPredictive Value of TestsProgression-Free SurvivalRisk AssessmentRisk FactorsSodium Channel BlockersLidocainepilsicainideSodium Channel BlockersBrugada syndromerisk stratificationsodium channel blockerventricular fibrillation

Identifiers

PMID29748178
PMCPMC6015319
OpenAlexW2799285406

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.