Evidence map›Paper›PMID 30698834›Full record

ArticleThe Laryngoscope2019

Feasibility and tolerability of measuring translaryngeal pressure during exercise.

Zoe Fretheim-Kelly, Thomas Halvorsen, John-Helge Heimdal, Eric Strand, Maria Vollsaeter, Hege Clemm, Ola Roksund

Registry-linked trialOpen access · hybridAbstract readClinical Study
In one paragraph

Article in The Laryngoscope, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04620343 (Exercise Induced Laryngeal Obstruction; a Randomized Controlled Treatment Trial), which is not on this map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.9field-weighted citation impact, top 14% 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.

NCT04620343 narecruitingnot on this mapstarted 2021, after this paper: background citation

Exercise Induced Laryngeal Obstruction; a Randomized Controlled Treatment Trial

TypeinterventionalSponsorHaukeland University HospitalRan2021 to 2036Enrolled350ConditionsExercise Induced Laryngeal Obstruction (EILO)ArmsA: Breathing advice with bio-feedback, B: Breathing advice with bio-feedback, Inspiratory muscle training (IMT), C: Breathing advice with bio-feedback, Speech Therapy, D: Breathing advice with bio-feedback, IMT and Speech Therapy, A: If CLE-test unchanged, additional IMT and Speech Therapy
3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 20 citations in OpenAlex.

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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

7 authors at 2 institutions in 1 country.

Zoe Fretheim-KellyFaculty of Veterinary Science, Norwegian University of Life Sciences, Oslo, Norway.ORCID 0000-0003-2402-195X
Thomas HalvorsenPediatric Department, Haukeland University Hospital, Bergen, Norway.
John-Helge HeimdalSurgical Department, Haukeland University Hospital, Bergen, Norway.
Eric StrandFaculty of Veterinary Science, Norwegian University of Life Sciences, Oslo, Norway.
Maria VollsaeterPediatric Department, Haukeland University Hospital, Bergen, Norway.
Hege ClemmPediatric Department, Haukeland University Hospital, Bergen, Norway.
Ola RoksundPediatric Department, Haukeland University Hospital, Bergen, Norway.
Haukeland University Hospital · NONorwegian University of Life Sciences · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectives/hypothesisTo determine if simultaneous tracheal and supraglottic pressure measurement performed during a continuous laryngoscopy exercise (CLE) test is possible, tolerable, and feasible, and if so, whether measurements can be used to determined airflow resistance over the larynx, thus providing an objective outcome measure for the CLE test, the gold standard for diagnosing exercise-induced laryngeal obstruction. STUDY

designExplorative descriptive clinical study.

methodsA CLE test was performed with the addition of two pressure sensors (Mikro-Cath 825-0101; Millar, Houston, TX) placed at the epiglottic tip and at the fifth tracheal ring. To place sensors, laryngeal anesthesia and a channel scope were required. Tolerability and feasibility was determined by a Likert score and subjective indication from subjects and operators. Adjustments to the technique were made to increase tolerability. The pressure data were continuously collected and analyzed for artifacts, drifts, frequency response, and used with flow data to calculate translaryngeal resistance.

resultsAll subjects (n = 7) completed all procedures. Two main areas of concern were identified regarding tolerability: application of topical anesthesia to the larynx and nasal discomfort due to the added diameter of the laryngoscope. Protocol adjustments improved both. Pressure data were obtained from all procedures in all subjects, were consistent, and followed physiological trends.

conclusionsContinuous measurement of the translaryngeal pressure gradient during a CLE test is possible, feasible, and tolerable. A CLE test with direct measurement of the translaryngeal pressure gradient might become a valuable tool in the objective assessment of respiratory function, and normal values should be established in health and disease. LEVEL OF EVIDENCE: NA Laryngoscope, 129:2748-2753, 2019.

Indexed as

AdultAirway ObstructionAirway ResistanceExercise TestFeasibility StudiesFemaleHumansLaryngeal DiseasesLaryngoscopyLarynxMaleMiddle AgedPressureReproducibility of Resultsexercise-induced laryngeal obstructionexercise testexertional dyspneaTranslaryngeal resistance

Identifiers

PMID30698834
PMCPMC6900056
OpenAlexW2912499129

What OpenQuestion holds

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LicenceCC BY-NC
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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.