Evidence map›Paper›PMID 32169926›Full record

ArticleBMJ open2020

Drug use and torsades de pointes cardiac arrhythmias in Sweden: a nationwide register-based cohort study.

Bengt Danielsson, Julius Collin, Anastasia Nyman, Annica Bergendal, Natalia Borg, Maria State, Lennart Bergfeldt, Johan Fastbom

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
4.2field-weighted citation impact, top 4% 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

20 citing papers in PubMed, 41 citations in OpenAlex.

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  20. Hydroxychloroquine and "off-label" utilization in the treatment of oral conditions.Oral surgery, oral medicine, oral pathology and oral radiology · 2020
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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

8 authors at 2 institutions in 1 country.

Bengt DanielssonDepartment of Analysis, Swedish National Board of Health and Welfare, Stockholm, Sweden.
Julius CollinDepartment of Analysis, Swedish National Board of Health and Welfare, Stockholm, Sweden.
Anastasia NymanDepartment of Analysis, Swedish National Board of Health and Welfare, Stockholm, Sweden.
Annica BergendalDepartment of Analysis, Swedish National Board of Health and Welfare, Stockholm, Sweden.
Natalia BorgDepartment of Analysis, Swedish National Board of Health and Welfare, Stockholm, Sweden.
Maria StateDepartment of Analysis, Swedish National Board of Health and Welfare, Stockholm, Sweden.
Lennart BergfeldtDepartment of Molecular and Clinical Medicine, University of Gothenburg, Goteborg, Sweden.
Johan FastbomDepartment of Analysis, Swedish National Board of Health and Welfare, Stockholm, Sweden johan.fastbom@socialstyrelsen.se.ORCID 0000-0001-9656-4668
National Board of Health and Welfare · SEUniversity of Gothenburg · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo study the occurrence of torsades de pointes (TdP) ventricular tachycardia in relation to use of drugs labelled with TdP risk, using two nationwide Swedish registers.

designProspective register-based cohort study.

settingEntire Sweden.

participantsPersons aged ≥18 years prescribed and dispensed any drug classified with TdP risk during 2006-2017, according to CredibleMeds. Persons with a registered TdP diagnosis during the study period, using drugs labelled with known (TdP 1), possible (TdP 2) or conditional (TdP 3) risk at the incident of TdP were examined. PRIMARY OUTCOME MEASURES: Occurrence of TdP in relation to exposure rates for individual drugs with TdP risk. SECONDARY OUTCOME MEASURES: Concurrent use of more than one TdP-labelled drug in a person with a TdP diagnosis.

resultsDuring the study period, 410 TdP cases using drugs with TdP risk labels at the incident were registered; 205 women and 205 men, mean age 74.0 and 71.5 years, respectively. Antidepressants dominated (129/410, 30%), followed by antiarrhythmics (17%). Diuretics and gastric acid-secretion inhibitors, with TdP risk related to induction of hypokalaemia or hypomagnesaemia, were used in 56% and 32% of the 410 TdP cases, respectively. Among the most used antidepressants, citalopram with known TdP 1 risk was associated with both a higher absolute number and incidence of TdP per 100 000 users (two to four times), compared with mirtazapine with possible (TdP 2), and sertraline with conditional (TdP 3) risk. Multiple risk factors, including advanced age, cardiovascular disease and treatment with more than one TdP-classified drug, were frequently observed.

conclusionsAntidepressants followed by antiarrhythmics dominated among TdP risk drugs used by adults with TdP diagnosis, the majority being ≥65 years. TdP risk class and concomitant medication should be considered when prescribing antidepressants to older patients.

Indexed as

AdultAgedAnti-Arrhythmia AgentsAntidepressive AgentsCohort StudiesFemaleHumansMaleMiddle AgedRisk FactorsSwedenTorsades de PointesAnti-Arrhythmia AgentsAntidepressive Agentsantidepressantscardiac ventricular arrhythmiaelderlytorsades de pointes

Identifiers

PMID32169926
PMCPMC7069257
OpenAlexW3011894255

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.