Evidence map›Paper›PMID 27686347›Full record

Trial reportIntensive care medicine2016

Neurally adjusted ventilatory assist as an alternative to pressure support ventilation in adults: a French multicentre randomized trial.

A Demoule, M Clavel, C Rolland-Debord, S Perbet, N Terzi, A Kouatchet, F Wallet, H Roze, F Vargas, C Guerin and 4 more

Registry-linked trialAbstract readMulticenter StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Intensive care medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02018666 (ZEPHYR), which is not on this map. Cited by 42 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 3 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.

NCT02018666 nacompletednot on this map

ZEPHYR: Multicenter, Prospective, Randomized, Open-label Study in Consecutive Patients Hospitalized for Acute Respiratory Failure Requiring Mechanical Ventilation With Endotracheal Tube. This Study Compared Two Ventilation Modes: NAVA Mode and Spontaneous Breathing With Inspiratory Pressure Support (the Latter is Considered as the Reference Ventilation Mode).

TypeinterventionalSponsorClinactRan2012 to 2013Enrolled129ConditionsAcute Respiratory FailureArmsNAVA endotracheal tube
3 · Its place in the literature

Who cites it

42 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors.

A DemouleService de Pneumologie et Réanimation Médicale (Département "R3S"), Groupe Hospitalier Pitié-Salpêtrière Charles Foix, AP-HP, 75013, Paris, France. alexandre.demoule@aphp.fr.
M ClavelRéanimation Polyvalente, Hôpital Dupuytren, Limoges, France.
C Rolland-DebordService de Pneumologie et Réanimation Médicale (Département "R3S"), Groupe Hospitalier Pitié-Salpêtrière Charles Foix, AP-HP, 75013, Paris, France.
S PerbetRéanimation Médico-Chirurgicale, CHU de Clermont-Ferrand, Clermont-Ferrand, France.
N TerziINSERM U1042, Université Grenoble-Alpes, HP2, 38000, Grenoble, France.
A KouatchetService de Réanimation Médicale et Médecine Hyperbare, CHU d'Angers, Angers, Angers, France.
F WalletRéanimation Médicale et Chirurgicale, Centre Hospitalier Lyon-Sud, Lyon, France.
H RozeAnesthésie et Réanimation, CHU de Bordeaux, Pessac, France.
F VargasRéanimation Médicale, Hôpital Pellegrin-Tripode, Bordeaux, France.
C GuerinRéanimation Médicale, Hôpital de la Croix Rousse, Lyon, France.
J DellamonicaRéanimation Médicale, Hôpital de l'Archet, Centre Hospitalier Universitaire de Nice, Nice, France.
S JaberAnesthésie et Réanimation, Hôpital Saint-Eloi, Montpellier, France.
L BrochardKeenan Research Centre and Li Ka Shing Institute, Saint-Michael's Hospital, Toronto, ON, Canada.
T SimilowskiService de Pneumologie et Réanimation Médicale (Département "R3S"), Groupe Hospitalier Pitié-Salpêtrière Charles Foix, AP-HP, 75013, Paris, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeNeurally adjusted ventilatory assist (NAVA) is a ventilatory mode that tailors the level of assistance delivered by the ventilator to the electromyographic activity of the diaphragm. The objective of this study was to compare NAVA and pressure support ventilation (PSV) in the early phase of weaning from mechanical ventilation.

methodsA multicentre randomized controlled trial of 128 intubated adults recovering from acute respiratory failure was conducted in 11 intensive care units. Patients were randomly assigned to NAVA or PSV. The primary outcome was the probability of remaining in a partial ventilatory mode (either NAVA or PSV) throughout the first 48 h without any return to assist-control ventilation. Secondary outcomes included asynchrony index, ventilator-free days and mortality.

resultsIn the NAVA and PSV groups respectively, the proportion of patients remaining in partial ventilatory mode throughout the first 48 h was 67.2 vs. 63.3 % (P = 0.66), the asynchrony index was 14.7 vs. 26.7 % (P < 0.001), the ventilator-free days at day 7 were 1.0 day [1.0-4.0] vs. 0.0 days [0.0-1.0] (P < 0.01), the ventilator-free days at day 28 were 21 days [4-25] vs. 17 days [0-23] (P = 0.12), the day-28 mortality rate was 15.0 vs. 22.7 % (P = 0.21) and the rate of use of post-extubation noninvasive mechanical ventilation was 43.5 vs. 66.6 % (P < 0.01).

conclusionsNAVA is safe and feasible over a prolonged period of time but does not increase the probability of remaining in a partial ventilatory mode. However, NAVA decreases patient-ventilator asynchrony and is associated with less frequent application of post-extubation noninvasive mechanical ventilation.

trial registrationclinicaltrials.gov Identifier: NCT02018666.

Indexed as

AgedFemaleFranceHigh-Frequency VentilationHumansIntensive Care UnitsIntention to Treat AnalysisInteractive Ventilatory SupportLength of StayMaleMiddle AgedRespiratory InsufficiencyStatistics, NonparametricTime FactorsVentilator-Induced Lung InjuryVentilator WeaningMechanical ventilationNeurally adjusted ventilatory assistNoninvasive ventilationPatient–ventilator asynchronyVentilator-free daysWeaning

Identifiers

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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.