Evidence map›Paper›PMID 34307208›Full record

ArticlePulse (Basel, Switzerland)2021

Application of a Diagnostic Methodology of Cardiac Systems Based on the Proportions of Entropy in Normal Patients and with Different Pathologies.

Javier Rodríguez, Signed Prieto, Elveny Laguado, Frank Pernett, Magda Villamizar, Edinson Olivella, Fredy Angarita, Giovanni de la Cruz, Carlos Morales, Mónica Castro

Abstract read
In one paragraph

Article in Pulse (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–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

2 citing papers in PubMed.

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4 · The record

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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

10 authors.

Javier RodríguezResearch Department, Hospital Universitario Nacional de Colombia, Bogotá, Colombia.
Signed PrietoResearch Department, Hospital Universitario Nacional de Colombia, Bogotá, Colombia.
Elveny LaguadoFaculty of Nursery, Universidad Cooperativa de Colombia, Bucaramanga, Colombia.
Frank PernettCritical Care Unit, Clínica del Country, Bogotá, Colombia.
Magda VillamizarFaculty of Nursery, Universidad Cooperativa de Colombia, Bucaramanga, Colombia.
Edinson OlivellaClínica de Girón, Santander, Colombia.
Fredy AngaritaFaculty of Engineering, Universidad Cooperativa de Colombia, Bucaramanga, Colombia.
Giovanni de la CruzCritical Care Unit, Clínica del Country, Bogotá, Colombia.
Carlos MoralesCritical Care Unit, Clínica del Country, Bogotá, Colombia.
Mónica CastroResearch Department, Insight Research Group SAS, Bogotá, Colombia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDynamical systems theory, probability, and entropy were the substrate for the development of the diagnostic and predictive methodology of adult heart dynamics.

objectiveTo apply a previously developed methodology from dynamical systems, probability, and entropy in both normal and pathological subjects.

methodsElectrocardiographic records were selected from 30 healthy subjects and 200 with different pathologies, with a length of least 18 h. Numerical attractors from dynamical attractors and the probability of occurrence of ordered pairs of consecutive heart rates were built. A calculation of entropy and its proportions was performed and statistical analysis was conducted.

resultsThe normal patients' heart dynamics were evaluated according to the methodology of entropy proportions, highlighting that there are differences in normal patients with different pathologies. There was maximal level of sensitivity, specificity, and diagnostic agreement.

conclusionProportional entropy constitutes a diagnostic and predictive method of heart systems, and may be useful as a tool to objectively diagnose and perform the follow-up of normal and pathological cases.

Indexed as

EntropyHeart dynamicsHeart rateHolterNonlinear dynamics

Identifiers

PMID34307208
PMCPMC8280414

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