Evidence map›Paper›PMID 35169170›Full record

Trial reportScientific reports2022

Early heart rate variability evaluation enables to predict ICU patients' outcome.

Laetitia Bodenes, Quang-Thang N'Guyen, Raphaël Le Mao, Nicolas Ferrière, Victoire Pateau, François Lellouche, Erwan L'Her

2 registry-linked trialsAbstract readClinical Trial
In one paragraph

Trial report in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing 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.

NCT02893462 recruitingnot on this map

Setting up a Warehouse of Physiological Data and Biomedical Signals in Adult Intensive Care

TypeobservationalSponsorUniversity Hospital, BrestRan2015 to 2027Enrolled1,500ConditionsCritical Illness
NCT07771101 recruitingnot on this mapstarted 2026, after this paper: background citation

Association Between Early Autonomic Dysfunction Measured by the Analgesia Nociception Index (ANI) and Prolonged Mechanical Ventilation in Postoperative ICU Patients

Typeobservational_patient_registrySponsorSeoul National University HospitalRan2026 to 2027Enrolled50ConditionsVentilator Weaning, Airway Extubation, Respiration, Artificial
3 · Its place in the literature

Who cites it

28 citing papers in PubMed.

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  10. Review
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  13. Association between cardiac autonomic dysfunction, cognitive impairment, and survival in patients with amyotrophic lateral sclerosis.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2025
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  17. Sensors (Basel, Switzerland) · 2024
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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

7 authors.

Laetitia BodenesService de Médecine Intensive et Réanimation, Medical Intensive Care, CHRU de Brest-La Cavale Blanche, 29609, Brest Cedex, France. laetitia.bodenes@chu-brest.fr.
Quang-Thang N'GuyenOxynov Inc, Technopole Brest Iroise, 135 rue Claude Chappe, 29280, Plouzané, France.
Raphaël Le MaoEA 3878, Département de Médecine Interne, Vasculaire et Pneumologie, Université de Bretagne Occidentale, CHRU de Brest-La Cavale Blanche, Brest, France.
Nicolas FerrièreService de Médecine Intensive et Réanimation, Medical Intensive Care, CHRU de Brest-La Cavale Blanche, 29609, Brest Cedex, France.
Victoire PateauService de Médecine Intensive et Réanimation, Medical Intensive Care, CHRU de Brest-La Cavale Blanche, 29609, Brest Cedex, France.
François LelloucheCentre de Recherche de l'Institut, Universitaire de Cardiologie et de Pneumologie de Québec, Québec, Canada.
Erwan L'HerService de Médecine Intensive et Réanimation, Medical Intensive Care, CHRU de Brest-La Cavale Blanche, 29609, Brest Cedex, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Heart rate variability (HRV) is a mean to evaluate cardiac effects of autonomic nervous system activity, and a relation between HRV and outcome has been proposed in various types of patients. We attempted to evaluate the best determinants of such variation in survival prediction using a physiological data-warehousing program. Plethysmogram tracings (PPG) were recorded at 75 Hz from the standard monitoring system, for a 2 h period, during the 24 h following ICU admission. Physiological data recording was associated with metadata collection. HRV was derived from PPG in either the temporal and non-linear domains. 540 consecutive patients were recorded. A lower LF/HF, SD2/SD1 ratios and Shannon entropy values on admission were associated with a higher ICU mortality. SpO2/FiO2 ratio and HRV parameters (LF/HF and Shannon entropy) were independent correlated with mortality in the multivariate analysis. Machine-learning using neural network (kNN) enabled to determine a simple decision tree combining the three best determinants (SDNN, Shannon Entropy, SD2/SD1 ratio) of a composite outcome index. HRV measured on admission enables to predict outcome in the ICU or at Day-28, independently of the admission diagnosis, treatment and mechanical ventilation requirement.Trial registration: ClinicalTrials.gov identifier NCT02893462.

Indexed as

Heart RateHospital MortalityIntensive Care UnitsLength of StayMachine LearningNeural Networks, ComputerPatient AdmissionAgedElectrocardiographyFemaleHumansMaleMiddle AgedOxygen SaturationPrognosisProspective Studies

Identifiers

PMID35169170
PMCPMC8847560

What OpenQuestion holds

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Read underepoch 390

Registered trials

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.