Evidence map›Paper›PMID 34692988›Full record

ArticleInternational journal of cardiology. Heart & vasculature2021

Clinical phenotypes of patients with non-valvular atrial fibrillation as defined by a cluster analysis: A report from the J-RHYTHM registry.

Eiichi Watanabe, Hiroshi Inoue, Hirotsugu Atarashi, Ken Okumura, Takeshi Yamashita, Eitaro Kodani, Ken Kiyono, Hideki Origasa, J-RHYTHM Registry Investigators

Open access · goldAbstract read
In one paragraph

Article in International journal of cardiology. Heart & vasculature, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.2field-weighted citation impact, top 11% 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

15 citing papers in PubMed, 17 citations in OpenAlex.

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  14. Metabolic Inflexibility as a Pathogenic Basis for Atrial Fibrillation.International journal of molecular sciences · 2022
    Review
  15. 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

9 authors at 8 institutions in 1 country.

Eiichi WatanabeDivision of Cardiology, Department of Internal Medicine, Fujita Health University Bantane Hospital, Nagoya, Japan.
Hiroshi InoueDepartment of Internal Medicine, Saiseikai Toyama Hospital, Toyama, Japan.
Hirotsugu AtarashiDepartment of Internal Medicine, AOI Hachioji Hospital, Tokyo, Japan.
Ken OkumuraDepartment of Cardiovascular Medicine, Saiseikai Kumamoto Hospital, Kumamoto, Japan.
Takeshi YamashitaDepartment of Cardiovascular Medicine, The Cardiovascular Institute, Tokyo, Japan.
Eitaro KodaniDepartment of Cardiovascular Medicine, Nippon Medical School, Tama-Nagayama Hospital, Tokyo, Japan.
Ken KiyonoDivision of Bioengineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Japan.
Hideki OrigasaDivision of Biostatistics and Clinical Epidemiology, University of Toyama Graduate, School of Medicine and Pharmaceutical Sciences, Toyama, Japan.
J-RHYTHM Registry Investigators
Cardiovascular Institute Hospital · JPFujita Health University Hospital · JPNippon Medical School · JPSaiseikai Kumamoto Hospital · JPThe University of Osaka · JPTokai University Hachioji Hospital · JPToyama University Hospital · JPUniversity of Toyama · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAtrial fibrillation (AF) is a heterogeneous condition caused by various underlying disorders and comorbidities. A cluster analysis is a statistical technique that attempts to group populations by shared traits. Applied to AF, it could be useful in classifying the variables and complex presentations of AF into phenotypes of coherent, more tractable subpopulations.

objectivesThis study aimed to characterize the clinical phenotypes of AF using a national AF patient registry using a cluster analysis.

methodsWe used data of an observational cohort that included 7406 patients with non-valvular AF enrolled from 158 sites participating in a nationwide AF registry (J-RHYTHM). The endpoints analyzed were all-cause mortality, thromboembolisms, and major bleeding.

resultsThe optimal number of clusters was found to be 4 based on 40 characteristics. They were those with (1) a younger age and low rate of comorbidities (n = 1876), (2) a high rate of hypertension (n = 4579), (3) high bleeding risk (n = 302), and (4) prior coronary artery disease and other atherosclerotic comorbidities (n = 649). The patients in the younger/low comorbidity cluster demonstrated the lowest risk for all 3 endpoints. The atherosclerotic comorbidity cluster had significantly higher adjusted risks of total mortality (odds ratio [OR], 3.70; 95% confidence interval [CI], 2.37-5.80) and major bleeding (OR, 5.19; 95% CI, 2.58-10.9) than the younger/low comorbidity cluster.

conclusionsA cluster analysis identified 4 distinct groups of non-valvular AF patients with different clinical characteristics and outcomes. Awareness of these groupings may lead to a differentiated patient management for AF.

Indexed as

ArrhythmiaBleedingDeathMachine learningStrokesThrombosis

Identifiers

PMID34692988
PMCPMC8515385
OpenAlexW3203550224

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.