Evidence map›Paper›PMID 25879592›Full record

Trial reportCritical care (London, England)2015

Neurally adjusted ventilatory assist and proportional assist ventilation both improve patient-ventilator interaction.

Matthieu Schmidt, Felix Kindler, Jérôme Cecchini, Tymothée Poitou, Elise Morawiec, Romain Persichini, Thomas Similowski, Alexandre Demoule

4 registry-linked trialsAbstract readClinical Trial
In one paragraph

Trial report in Critical care (London, England), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 4 registered trials, which are not on this map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
–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.

NCT02056093 naunknown statusnot on this map

Breathing Pattern Variability, Respiratory Discomfort and Work of Breathing in Proportional Assist Ventilation And Neurally Adjusted Ventilator Assist

TypeinterventionalSponsorPierre and Marie Curie UniversityRan2013 to 2014Enrolled16ConditionsAcute Respiratory FailureArmsPSV mode, PAV mode, NAVA
NCT04026217 suspendednot on this mapstarted 2019, after this paper: background citation

Evaluation of Diaphragmatic Function in Hematological Patients With Acute Hypoxemic Respiratory Failure

TypeobservationalSponsorAzienda Sanitaria-Universitaria Integrata di UdineRan2019 to 2024Enrolled30ConditionsRespiratory Failure, Diaphragm Injury, Ultrasound, Mechanical Ventilation Complication
NCT05990348 recruitingnot on this mapstarted 2022, after this paper: background citation

Estimation of the Diaphragm Electrical Activity and Intercostal Thickening Fraction During Different Pattern of Mechanical Ventilation: PSV Versus NAVA

TypeobservationalSponsorFondazione Policlinico Universitario Agostino Gemelli IRCCSRan2022 to 2025Enrolled20ConditionsRespiratory Failure, Weaning FailureArmsdifficult weaning patients
NCT06998927 active not recruitingnot on this mapstarted 2024, after this paper: background citation

Proportional Assist Ventilation Plus and Estimation of Respiratory Effort in Critically Ill Patients During the Transition to Spontaneous Ventilation: A Prospective Cohort Study

TypeobservationalSponsorArgentinian Intensive Care SocietyRan2024 to 2025Enrolled35ConditionsRespiratory Effort, Proportional Assist Ventilation, Work of BreathingArmsApplication of Proportional Assist Ventilation Plus (PAV+) at three support levels (20%, 50%, 70%) to assess ventilator-displayed work of breathing and its correlation with physiologic measures.
3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

8 authors.

Matthieu SchmidtSorbonne Universités, UPMC Univ Paris 06, UMR_S 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France. matthieuschmidt@yahoo.fr.
Felix KindlerAP-HP, Groupe Hospitalier Pitié-Salpêtrière Charles Foix, Service de Pneumologie et Réanimation Médicale (Département R3S), F-75013, Paris, France. felix.kindler@gmail.com.
Jérôme CecchiniSorbonne Universités, UPMC Univ Paris 06, UMR_S 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France. jcecchini11@orange.fr.
Tymothée PoitouUniversité Pierre et Marie Curie-CNRS-INSERM, ICM, Equipe Neurologie et Thérapeutique Expérimentale, Hôpital de la Salpêtrière, Paris, France. itym@me.com.
Elise MorawiecSorbonne Universités, UPMC Univ Paris 06, UMR_S 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France. elisemorawiec@gmail.com.
Romain PersichiniAP-HP, Groupe Hospitalier Pitié-Salpêtrière Charles Foix, Service de Pneumologie et Réanimation Médicale (Département R3S), F-75013, Paris, France. romain.persichini@hotmail.fr.
Thomas SimilowskiSorbonne Universités, UPMC Univ Paris 06, UMR_S 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France. thomas.similowski@psl.aphp.fr.
Alexandre DemouleSorbonne Universités, UPMC Univ Paris 06, UMR_S 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France. alexandre.demoule@psl.aphp.fr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe objective was to compare the impact of three assistance levels of different modes of mechanical ventilation; neurally adjusted ventilatory assist (NAVA), proportional assist ventilation (PAV), and pressure support ventilation (PSV) on major features of patient-ventilator interaction.

methodsPSV, NAVA, and PAV were set to obtain a tidal volume (VT) of 6 to 8 ml/kg (PSV₁₀₀, NAVA₁₀₀, and PAV₁₀₀) in 16 intubated patients. Assistance was further decreased by 50% (PSV₅₀, NAVA₅₀, and PAV₅₀) and then increased by 50% (PSV₁₅₀, NAVA₁₅₀, and PAV₁₅₀) with all modes. The three modes were randomly applied. Airway flow and pressure, electrical activity of the diaphragm (EAdi), and blood gases were measured. VT, peak EAdi, coefficient of variation of VT and EAdi, and the prevalence of the main patient-ventilator asynchronies were calculated.

resultsPAV and NAVA prevented the increase of VT with high levels of assistance (median 7.4 (interquartile range (IQR) 5.7 to 10.1) ml/kg and 7.4 (IQR, 5.9 to 10.5) ml/kg with PAV₁₅₀ and NAVA₁₅₀ versus 10.9 (IQR, 8.9 to 12.0) ml/kg with PSV₁₅₀, P <0.05). EAdi was higher with PAV than with PSV at level₁₀₀ and level₁₅₀. The coefficient of variation of VT was higher with NAVA and PAV (19 (IQR, 14 to 31)% and 21 (IQR 16 to 29)% with NAVA₁₀₀ and PAV₁₀₀ versus 13 (IQR 11 to 18)% with PSV₁₀₀, P <0.05). The prevalence of ineffective triggering was lower with PAV and NAVA than with PSV (P <0.05), but the prevalence of double triggering was higher with NAVA than with PAV and PSV (P <0.05).

conclusionsPAV and NAVA both prevent overdistention, improve neuromechanical coupling, restore the variability of the breathing pattern, and decrease patient-ventilator asynchrony in fairly similar ways compared with PSV. Further studies are needed to evaluate the possible clinical benefits of NAVA and PAV on clinical outcomes.

trial registrationClinicaltrials.gov NCT02056093 . Registered 18 December 2013.

Indexed as

AgedAged, 80 and overBlood Gas AnalysisCritical CareDiaphragmFemaleHumansMaleMiddle AgedNervous System Physiological PhenomenaRandom AllocationRespiration, ArtificialRespiratory InsufficiencyRespiratory MechanicsRespiratory MusclesTidal Volume

Identifiers

PMID25879592
PMCPMC4355459

What OpenQuestion holds

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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.