Evidence map›Paper›PMID 33894521›Full record

ArticleInternational journal of pediatric otorhinolaryngology2021

Tracheal pressure generated by high-flow nasal cannula in 3D-Printed pediatric airway models.

Alan J Gray, Katie R Nielsen, Laura E Ellington, Marisa Earley, Kaalan Johnson, Lincoln S Smith, Rob M DiBlasi

Open access · greenAbstract read
In one paragraph

Article in International journal of pediatric otorhinolaryngology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

4 citing papers in PubMed, 10 citations in OpenAlex.

  1. Review
  2. High-flow nasal cannulaERJ open research · 2026
    Article
  3. Article
  4. Obstructive Sleep Apnea in Neonates.Children (Basel, Switzerland) · 2022
    Review
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.

Alan J GrayDepartment of Otolaryngology - Head and Neck Surgery, University of Texas Health San Antonio, San Antonio, TX, USA. Electronic address: GrayAJ@uthscsa.edu.
Katie R NielsenDivision of Critical Care Medicine, Department of Pediatrics, University of Washington, Seattle, WA, USA. Electronic address: Katie.Nielsen@seattlechildrens.org.
Laura E EllingtonPediatrics, University of Washington School of Medicine, Seattle, WA, USA. Electronic address: laura.ellington@seattlechildrens.org.
Marisa EarleyDepartment of Otolaryngology - Head and Neck Surgery, University of Texas Health San Antonio, San Antonio, TX, USA. Electronic address: earleyma@uthscsa.edu.
Kaalan JohnsonDivision of Pediatric Otolaryngology - Head and Neck Surgery, Seattle Children's Hospital, Seattle, WA, USA. Electronic address: Kaalan.Johnson@seattlechildrens.org.
Lincoln S SmithDivision of Critical Care Medicine, Department of Pediatrics, University of Washington, Seattle, WA, USA. Electronic address: lincoln.smith@seattlechildrens.org.
Rob M DiBlasiSeattle Children's Hospital and Research Institute, Seattle, WA, USA. Electronic address: robert.diblasi@seattlechildrens.org.
University of Washington · USSeattle Children's Hospital · USThe University of Texas Health Science Center at San Antonio · US

Funding

University of Washington Implementation Science Training Program (UW-ISTP)K12K12HL137940 · NHLBI · UNIVERSITY OF WASHINGTON · PI AU, DAVID H, CURTIS, J RANDALL · 2017 to 2021
$2.9M
NHLBI NIH HHS K12 HL137940
6 · The paper itself

Abstract

objectiveHeated and humidified high flow nasal cannula (HFNC) is an increasingly used form of noninvasive respiratory support with the potential to generate significant tracheal pressure. The aim of this study was to quantify the pressure generated by HFNC within the trachea in anatomically correct, pediatric airway models.

methods3D-printed upper airway models of a preterm neonate, term neonate, toddler, and small child were connected to a spontaneous breathing computerized lung model at age-appropriate ventilation settings. Two commercially available HFNC systems were applied to each airway model at increasing flows and the positive end-expiratory pressure (PEEP) was recorded at the level of the trachea.

resultsIncreasing HFNC flow produced a quadratically curved increase in tracheal pressure in closed-mouth models. The maximum flow tested in each model generated a tracheal pressure of 7 cm H

conclusionsHFNC was found to demonstrate a predictable flow-pressure relationship that achieved sufficient distending pressure to consider treatment of pediatric obstructive sleep apnea and tracheomalacia in the closed-mouth models tested.

Indexed as

CannulaTracheaChildContinuous Positive Airway PressureHumansInfant, NewbornOxygen Inhalation TherapyPositive-Pressure RespirationPrinting, Three-DimensionalRespirationCPAPHFNCOSAPediatricTracheaTracheomalacia

Identifiers

PMID33894521
PMCPMC10549990
OpenAlexW3154801761

What OpenQuestion holds

Textmetadata
LicenceTDM
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.