Evidence map›Paper›PMID 34104323›Full record

ArticleMethodist DeBakey cardiovascular journal2021

Loperamide Toxicity Revealing Apical Hypertrophic Cardiomyopathy.

Najah Khan, Kalyan R Chitturi, Courtney Hatcher, Marietta Clewing, Sherif F Nagueh

Open access · diamondAbstract readCase Reports
In one paragraph

Article in Methodist DeBakey cardiovascular journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 31% 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

2 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

  1. Pooled it
  2. 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

5 authors at 2 institutions in 1 country.

Najah KhanHouston Methodist Hospital, Houston, Texas.
Kalyan R ChitturiHouston Methodist Hospital, Houston, Texas.
Courtney HatcherHouston Methodist Hospital, Houston, Texas.
Marietta ClewingHouston Methodist Hospital, Houston, Texas.
Sherif F NaguehHouston Methodist DeBakey Heart & Vascular Center, Houston Methodist Hospital, Houston, Texas.
Methodist Hospital · USHouston Methodist · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Loperamide, a μ-opioid receptor agonist, can cause cardiotoxicity by inhibiting the potassium ion channel and slowing cardiomyocyte repolarization. This, in turn, can lead to frequent early afterdepolarizations, the most common mechanism of drug-induced long QT syndrome and torsades de pointes. Apical hypertrophic cardiomyopathy (AHCM) is a nonobstructive hypertrophic cardiomyopathy rarely associated with malignant arrhythmias. We present a case of loperamide-induced malignant ventricular arrhythmia revealing underlying AHCM in a 25-year-old woman with a history of sudden cardiac arrest (SCA) and opioid use. It is important to evaluate for structural heart disease in all patients presenting with SCA, regardless of presumed etiology such as drug-induced cardiotoxicity, to prevent missed opportunities for adequate treatment. Furthermore, the diagnosis of AHCM in SCA warrants further genetic evaluation for variances with a predilection for malignant arrhythmias.

Indexed as

MutationAdultAntidiarrhealsCardiomyopathy, HypertrophicCardiotoxicityDNA Mutational AnalysisElectrocardiographyFemaleGenetic Predisposition to DiseaseHumansKv1.5 Potassium ChannelLoperamideMagnetic Resonance ImagingOpioid-Related DisordersRisk FactorsTachycardia, VentricularAntidiarrhealsKCNA5 protein, humanKv1.5 Potassium ChannelLoperamideapical hypertrophic cardiomyopathyloperamidestructural heart diseasesudden cardiac arrestventricular tachycardia

Identifiers

PMID34104323
PMCPMC8158447
OpenAlexW3156379655

What OpenQuestion holds

Textmetadata
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.