Evidence map›Paper›PMID 18637888›Full record

ArticleBritish journal of clinical pharmacology2008

Case ascertainment and estimated incidence of drug-induced long-QT syndrome: study in Southwest France.

Mariam Molokhia, Atul Pathak, Maryse Lapeyre-Mestre, Laetitia Caturla, Jean Louis Montastruc, L'Association Française des Centres Régionaux de Pharmacovigilance (CRPV), Paul McKeigue

Abstract readMulticenter Study
In one paragraph

Article in British journal of clinical pharmacology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

28 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. ICD-10 codes used to identify adverse drug events in administrative data: a systematic review.Journal of the American Medical Informatics Association : JAMIA
    Pooled it
  4. Article
  5. Review
  6. Article
  7. Spotlight on the 2022 ESC guideline management of ventricular arrhythmias and prevention of sudden cardiac death: 10 novel key aspects.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
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Genetic and Molecular Aspects of Drug-Induced QT Interval Prolongation.International journal of molecular sciences · 2021
    Review
  15. [Proarrhythmic adverse effects of nonarrhythmic drugs].Herzschrittmachertherapie & Elektrophysiologie · 2019
    Review
  16. Article
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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.

Mariam MolokhiaNon-Communicable Disease Epidemiology UnitLondon School of Hygiene & Tropical MedicineKeppel Street, WC1E 7HT London, UK. mariam.molokhia@lshtm.ac.uk
Atul Pathak
Maryse Lapeyre-Mestre
Laetitia Caturla
Jean Louis Montastruc
L'Association Française des Centres Régionaux de Pharmacovigilance (CRPV)
Paul McKeigue

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThe aim of this study was to investigate the incidence and reporting rate of drug-induced long-QT syndrome (LQTS) in France [defined by evidence of torsades de pointes (TdP), QT prolongation and exposure to a relevant drug] and to assess feasibility of case collection for drug-induced LQTS.

methodsA retrospective population-based study was carried out in Southwest France in five institutions: three main hospitals, one private clinic and one cardiac emergency unit, searched from 1 January 1999 to 1 January 2005 (population coverage of 614 000). The study population consisted of 861 cases with International Classification of Diseases-10 diagnostic codes for ventricular tachycardia (I147.2), ventricular fibrillation (I149.0) and sudden cardiac death (I146.1) from hospital discharge summaries, supplemented by cases reported to national or regional pharmacovigilance systems, and voluntary reporting by physicians, validated according to internationally defined criteria for drug-induced LQTS.

resultsOf 861 patients coded with arrhythmias or sudden cardiac death, there were 40 confirmed surviving acquired cases of drug-induced LQTS. We estimated that the incidence of those who survive to reach hospital drug-induced LQTS is approximately 10.9 per million annually in France (95% confidence interval 7.8, 14.8).

conclusionsMany cases of drug-induced LQTS may not survive before they reach hospital, as the reporting rate for drug-induced LQTS identified through the cardiology records and also reported to pharmacovigilance systems for the Midi-Pyrenees area is 3/40 (7.5%). Using the methods outlined it is possible to assemble cases to study genetic susceptibility to drug-induced LQTS and adapt these methods more widely.

Indexed as

AdultAgedAged, 80 and overAnti-Arrhythmia AgentsAtrial FibrillationDeath, Sudden, CardiacElectrocardiographyFeasibility StudiesFemaleFranceGenetic Predisposition to DiseaseHumansIncidenceLong QT SyndromeMaleMiddle AgedAnti-Arrhythmia AgentsPotassium Channels

Identifiers

PMID18637888
PMCPMC2526236

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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.