Evidence map›Paper›PMID 29051332›Full record

ArticleJournal of applied physiology (Bethesda, Md. : 1985)2018

Parenchymal strain heterogeneity during oscillatory ventilation: why two frequencies are better than one.

Jacob Herrmann, Merryn H Tawhai, David W Kaczka

Open access · bronzeAbstract read
In one paragraph

Article in Journal of applied physiology (Bethesda, Md. : 1985), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.2field-weighted citation impact, top 19% 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

15 citing papers in PubMed, 17 citations in OpenAlex.

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  15. Strain, strain rate, and mechanical power: An optimization comparison for oscillatory ventilation.International journal for numerical methods in biomedical engineering · 2019
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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

3 authors at 2 institutions in 2 countries.

Jacob HerrmannDepartment of Anesthesia, University of Iowa , Iowa City, Iowa.
Merryn H TawhaiAuckland Bioengineering Institute, University of Auckland , Auckland , New Zealand.
David W KaczkaDepartment of Anesthesia, University of Iowa , Iowa City, Iowa.ORCID 0000-0003-4378-5242
University of Iowa · USUniversity of Auckland · NZ

Funding

Multi-center Structural & Functional Quantitative CT Pulmonary PhenotypingR01HL112986 · NHLBI · UNIVERSITY OF IOWA · PI HOFFMAN, ERIC ALFRED · 2012 to 2016
$4.6M
Sub Project 2UM1HL108724 · NHLBI · BETH ISRAEL DEACONESS MEDICAL CENTER · PI LORING, STEPHEN H, TALMOR, DANIEL STUART · 2012 to 2014
$4.6M
Defining the role of early pulmonary vascular disease in COPDR01HL126838 · NHLBI · UNIVERSITY OF IOWA · PI HAN, MEILAN K, HOFFMAN, ERIC ALFRED · 2015 to 2018
$3.1M
NHLBI NIH HHS R01 HL112986NHLBI NIH HHS R01 HL126838NHLBI NIH HHS UM1 HL108724
6 · The paper itself

Abstract

High-frequency oscillatory ventilation (HFOV) relies on low tidal volumes cycled at supraphysiological rates, producing fundamentally different mechanisms for gas transport and exchange compared with conventional mechanical ventilation. Despite the appeal of using low tidal volumes to mitigate the risks of ventilator-induced lung injury, HFOV has not improved mortality for most clinical indications. This may be due to nonuniform and frequency-dependent distribution of flow throughout the lung. The goal of this study was to compare parenchymal strain heterogeneity during eucapnic HFOV when using oscillatory waveforms that consisted of either a single discrete frequency or two simultaneous frequencies. We utilized a three-dimensional, anatomically structured canine lung model for simulating frequency-dependent ventilation distribution. Gas transport was simulated via direct alveolar ventilation, advective mixing at bifurcations, turbulent and oscillatory dispersion, and molecular diffusion. Volume amplitudes at each oscillatory frequency were iteratively optimized to attain eucapnia. Ventilation using single-frequency HFOV demonstrated increasing heterogeneity of acinar flow and CO

Indexed as

High-Frequency VentilationModels, BiologicalAnimalsDogsLungRespirationanimalbiological modelscomputational modelsdisease modelslung pathologyoscillatory ventilationrespiratory mechanicsventilation distribution

Identifiers

PMID29051332
PMCPMC5899269
OpenAlexW2766061148

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.