Evidence map›Paper›PMID 26495977›Full record

ArticleAnesthesiology2015

Multifrequency Oscillatory Ventilation in the Premature Lung: Effects on Gas Exchange, Mechanics, and Ventilation Distribution.

David W Kaczka, Jacob Herrmann, C Elroy Zonneveld, David G Tingay, Anna Lavizzari, Peter B Noble, J Jane Pillow

Open access · bronzeAbstract read
In one paragraph

Article in Anesthesiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

18 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Imaging the Lung in ARDS: A Primer.Respiratory care · 2024
    Review
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  5. Article
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  7. Article
  8. Article
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  10. Review
  11. Article
  12. Review
  13. Article
  14. Strain, strain rate, and mechanical power: An optimization comparison for oscillatory ventilation.International journal for numerical methods in biomedical engineering · 2019
    Article
  15. Article
  16. Article
  17. Review
  18. Regional gas transport in the heterogeneous lung during oscillatory ventilation.Journal of applied physiology (Bethesda, Md. : 1985) · 2016
    Article
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 at 3 institutions in 1 country.

David W KaczkaFrom the Departments of Anesthesia, Biomedical Engineering, and Radiology (D.W.K.) and Department of Biomedical Engineering (J.H.), University of Iowa, Iowa City, Iowa; Neonatal Research, Murdoch Childrens Research Group, Melbourne, Victoria, Australia (C.E.Z.); Department of Paediatrics, University of Melbourne, and Neonatal Research, Murdoch Childrens Research Institute, and Department of Neonatology, Royal Children's Hospital, Melbourne, Victoria, Australia (D.G.T.); Neonatal Research, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia, and NICU, Fondazione IRCCS Ca'Granda, Ospedale Maggiore Policlinico Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy (A.L.); School of Anatomy, Physiology, and Human Biology, and Centre for Neonatal Research and Education, School of Paediatrics and Child Health, University of Western Australia, Perth, Western Australia, Australia (P.B.N.); and School of Anatomy, Physiology, and Human Biology and Centre for Neonatal Research and Education, School of Paediatrics and Child Health, University of Western Australia, and Neonatal Clinical Care Unit, Women and Newborn Health Service, Perth, Western Australia, Australia (J.J.P.).
Jacob Herrmann
C Elroy Zonneveld
David G Tingay
Anna Lavizzari
Peter B Noble
J Jane Pillow
Murdoch Children's Research Institute · AURoyal Children's Hospital · AUUniversity of Melbourne · AU

Funding

Sub Project 2UM1HL108724 · NHLBI · BETH ISRAEL DEACONESS MEDICAL CENTER · PI LORING, STEPHEN H, TALMOR, DANIEL STUART · 2012 to 2014
$4.6M
NHLBI NIH HHS UM1 HL108724
6 · The paper itself

Abstract

backgroundDespite the theoretical benefits of high-frequency oscillatory ventilation (HFOV) in preterm infants, systematic reviews of randomized clinical trials do not confirm improved outcomes. The authors hypothesized that oscillating a premature lung with multiple frequencies simultaneously would improve gas exchange compared with traditional single-frequency oscillatory ventilation (SFOV). The goal of this study was to develop a novel method for HFOV, termed "multifrequency oscillatory ventilation" (MFOV), which relies on a broadband flow waveform more suitable for the heterogeneous mechanics of the immature lung.

methodsThirteen intubated preterm lambs were randomly assigned to either SFOV or MFOV for 1 h, followed by crossover to the alternative regimen for 1 h. The SFOV waveform consisted of a pure sinusoidal flow at 5 Hz, whereas the customized MFOV waveform consisted of a 5-Hz fundamental with additional energy at 10 and 15 Hz. Per standardized protocol, mean pressure at airway opening ((Equation is included in full-text article.)) and inspired oxygen fraction were adjusted as needed, and root mean square of the delivered oscillatory volume waveform (Vrms) was adjusted at 15-min intervals. A ventilatory cost function for SFOV and MFOV was defined as (Equation is included in full-text article.), where Wt denotes body weight.

resultsAveraged over all time points, MFOV resulted in significantly lower VC (246.9 ± 6.0 vs. 363.5 ± 15.9 ml mmHg kg) and (Equation is included in full-text article.)(12.8 ± 0.3 vs. 14.1 ± 0.5 cm H2O) compared with SFOV, suggesting more efficient gas exchange and enhanced lung recruitment at lower mean airway pressures.

conclusionOscillation with simultaneous multiple frequencies may be a more efficient ventilator modality in premature lungs compared with traditional single-frequency HFOV.

Indexed as

RespirationAnalysis of VarianceAnimalsAnimals, NewbornBlood Gas AnalysisCross-Over StudiesElectric ImpedanceHigh-Frequency VentilationLungRespiratory InsufficiencyRespiratory MechanicsSheepTreatment Outcome

Identifiers

PMID26495977
PMCPMC4679436
OpenAlexW1945100018

What OpenQuestion holds

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Registered trials

None linked

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.