Evidence map›Paper›PMID 25050572›Full record

ArticleAnesthesiology2014

Clinical assessment of auto-positive end-expiratory pressure by diaphragmatic electrical activity during pressure support and neurally adjusted ventilatory assist.

Giacomo Bellani, Andrea Coppadoro, Nicolò Patroniti, Marta Turella, Stefano Arrigoni Marocco, Giacomo Grasselli, Tommaso Mauri, Antonio Pesenti

Open access · bronzeAbstract read
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In one paragraph

Article in Anesthesiology, 2014. 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
4.1field-weighted citation impact, top 6% 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, 41 citations in OpenAlex.

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  4. [A case of neonatal congenital myasthenic syndrome caused byZhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2026
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  12. Neurally adjusted ventilatory assist.Current opinion in critical care · 2015
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 3 countries.

Giacomo BellaniFrom the Department of Health Science, University of Milan-Bicocca, Monza, Italy, and Department of Emergency and Intensive Care, San Gerardo Hospital, Monza, Italy (G.B., N.P., A.P.); Department of Health Science, University of Milan-Bicocca, Monza, Italy (A.C., M.T., S.A.M., T.M.); and Department of Emergency and Intensive Care, San Gerardo Hospital, Monza, Italy (G.G.).
Andrea Coppadoro
Nicolò Patroniti
Marta Turella
Stefano Arrigoni Marocco
Giacomo Grasselli
Tommaso Mauri
Antonio Pesenti
Capital One (United States) · USAmerican Institute of Certified Public Accountants · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAuto-positive end-expiratory pressure (auto-PEEP) may substantially increase the inspiratory effort during assisted mechanical ventilation. Purpose of this study was to assess whether the electrical activity of the diaphragm (EAdi) signal can be reliably used to estimate auto-PEEP in patients undergoing pressure support ventilation and neurally adjusted ventilatory assist (NAVA) and whether NAVA was beneficial in comparison with pressure support ventilation in patients affected by auto-PEEP.

methodsIn 10 patients with a clinical suspicion of auto-PEEP, the authors simultaneously recorded EAdi, airway, esophageal pressure, and flow during pressure support and NAVA, whereas external PEEP was increased from 2 to 14 cm H2O. Tracings were analyzed to measure apparent "dynamic" auto-PEEP (decrease in esophageal pressure to generate inspiratory flow), auto-EAdi (EAdi value at the onset of inspiratory flow), and IDEAdi (inspiratory delay between the onset of EAdi and the inspiratory flow).

resultsThe pressure necessary to overcome auto-PEEP, auto-EAdi, and IDEAdi was significantly lower in NAVA as compared with pressure support ventilation, decreased with increase in external PEEP, although the effect of external PEEP was less pronounced in NAVA. Both auto-EAdi and IDEAdi were tightly correlated with auto-PEEP (r = 0.94 and r = 0.75, respectively). In the presence of auto-PEEP at lower external PEEP levels, NAVA was characterized by a characteristic shape of the airway pressure.

conclusionsIn patients with auto-PEEP, NAVA, compared with pressure support ventilation, led to a decrease in the pressure necessary to overcome auto-PEEP, which could be reliably monitored by the electrical activity of the diaphragm before inspiratory flow onset (auto-EAdi).

Indexed as

AgedDiaphragmElectrophysiological PhenomenaFemaleHumansInteractive Ventilatory SupportMalePositive-Pressure RespirationProspective Studies

Identifiers

PMID25050572
OpenAlexW2093923674

What OpenQuestion holds

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Registered trials

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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.