Evidence map›Paper›PMID 25466224›Full record

ArticleMedical & biological engineering & computing2015

Application of the RIMARC algorithm to a large data set of action potentials and clinical parameters for risk prediction of atrial fibrillation.

Ursula Ravens, Deniz Katircioglu-Öztürk, Erich Wettwer, Torsten Christ, Dobromir Dobrev, Niels Voigt, Claire Poulet, Simone Loose, Jana Simon, Agnes Stein and 5 more

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Article in Medical & biological engineering & computing, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.2field-weighted citation impact, top 19% 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, 27 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. In Silico Assessment of Class I Antiarrhythmic Drug Effects onInternational journal of molecular sciences · 2021
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  7. Observational
  8. Cardiac fibroblasts : Active players in (atrial) electrophysiology?Herzschrittmachertherapie & Elektrophysiologie · 2018
    Review
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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

15 authors at 7 institutions in 3 countries.

Ursula RavensDepartment of Pharmacology and Toxicology, Medical Faculty Carl Gustav Carus, TU Dresden, Dresden, Germany, ravens@rcs.urz.tu-dresden.de.
Deniz Katircioglu-Öztürk
Erich Wettwer
Torsten Christ
Dobromir Dobrev
Niels Voigt
Claire Poulet
Simone Loose
Jana Simon
Agnes Stein
Klaus Matschke
Michael Knaut
Emre Oto
Ali Oto
H Altay Güvenir
University Hospital Carl Gustav Carus · DETU Dresden · DEBilkent University · TRHacettepe University Hospital · TRMiddle East Technical University · TRUniversity Medical Center Hamburg-Eppendorf · DEUniversity of Duisburg-Essen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ex vivo recorded action potentials (APs) in human right atrial tissue from patients in sinus rhythm (SR) or atrial fibrillation (AF) display a characteristic spike-and-dome or triangular shape, respectively, but variability is huge within each rhythm group. The aim of our study was to apply the machine-learning algorithm ranking instances by maximizing the area under the ROC curve (RIMARC) to a large data set of 480 APs combined with retrospectively collected general clinical parameters and to test whether the rules learned by the RIMARC algorithm can be used for accurately classifying the preoperative rhythm status. APs were included from 221 SR and 158 AF patients. During a learning phase, the RIMARC algorithm established a ranking order of 62 features by predictive value for SR or AF. The model was then challenged with an additional test set of features from 28 patients in whom rhythm status was blinded. The accuracy of the risk prediction for AF by the model was very good (0.93) when all features were used. Without the seven AP features, accuracy still reached 0.71. In conclusion, we have shown that training the machine-learning algorithm RIMARC with an experimental and clinical data set allows predicting a classification in a test data set with high accuracy. In a clinical setting, this approach may prove useful for finding hypothesis-generating associations between different parameters.

Indexed as

Action PotentialsAgedAlgorithmsAtrial FibrillationFemaleHeart AtriaHumansMaleRiskROC Curve

Identifiers

PMID25466224
OpenAlexW2050184434

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.