Evidence map›Paper›PMID 37843617›Full record

ArticleEuropean archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery2024

Differences in residual volume above different tracheostomy tube cuffs depending on tube structure, tube tilt angle, and liquid viscosity.

Takahiro Katsuno, Rumi Ueha, Aiko Fujisaki, Takeshi Unno, Carmel Cotaoco, Asako Kaneoka, Misaki Koyama, Taku Sato, Takao Goto, Kenji Kondo

Open access · hybridAbstract read
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In one paragraph

Article in European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact, top 63% 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

1 citing paper in PubMed, 0 citations in OpenAlex.

  1. 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

10 authors at 2 institutions in 1 country.

Takahiro Katsuno *Department of Otolaryngology and Head and Neck Surgery, The University of Tokyo, Tokyo, Japan.
Rumi Ueha *Department of Otolaryngology and Head and Neck Surgery, The University of Tokyo, Tokyo, Japan. uehar-oto@h.u-tokyo.ac.jp.ORCID http://orcid.org/0000-0002-0608-7237
Aiko FujisakiDepartment of Otolaryngology and Head and Neck Surgery, The University of Tokyo, Tokyo, Japan.
Takeshi UnnoDepartment of Otolaryngology and Head and Neck Surgery, The University of Tokyo, Tokyo, Japan.
Carmel CotaocoDepartment of Otolaryngology and Head and Neck Surgery, The University of Tokyo, Tokyo, Japan.
Asako KaneokaSwallowing Center, The University of Tokyo Hospital, The University of Tokyo, 7-3-1 Hongo Bunkyo-ku, Tokyo, 113-8655, Japan.
Misaki KoyamaDepartment of Otolaryngology and Head and Neck Surgery, The University of Tokyo, Tokyo, Japan.
Taku SatoDepartment of Otolaryngology and Head and Neck Surgery, The University of Tokyo, Tokyo, Japan.
Takao GotoDepartment of Otolaryngology and Head and Neck Surgery, The University of Tokyo, Tokyo, Japan.
Kenji KondoDepartment of Otolaryngology and Head and Neck Surgery, The University of Tokyo, Tokyo, Japan.
The University of Tokyo · JPUniversity of Tokyo Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionProper management of aspirated material above the tracheostomy tube cuff is crucial to prevent complications, such as aspiration pneumonia. This study aimed to thoroughly examine the effects of aspirated liquid viscosity, suction port positioning, and tube tilt angle on residual volume above the cuff (RVAC).

methodsFive types of tracheostomy tubes (approximately 9 mm outer diameter) were placed through a transparent cylinder with an inner diameter of 18 mm. The cuff was inflated to completely seal the interior of the cylinder. Four liquids with different viscosities were poured onto the cuff, and the liquid above the cuff was suctioned from the side port. The cylinder was angled at 90° and 20°, and each test was performed thrice to determine the average RVAC.

resultsAfter side-port suctioning, some liquid residue was observed on the cuff of all tracheostomy tubes. The RVAC increased with higher liquid viscosity. The tubes with a longer distance from the suction port opening to the cuff top exhibited more RVAC. Moreover, the RVAC was almost the same regardless of the cylinder angle for tubes with a suction port on the lateral side. However, tubes with backside ports showed a decreased RVAC with cylinder tilt.

conclusionsThis study underscores the persistence of residual material on cuffed tracheostomy tubes even with regular subglottic secretion drainage. This emphasizes the need for specialized tracheostomy tube development aimed at reducing post-suction RVAC. Improved designs can potentially minimize complications associated with residue accumulation.

Indexed as

Pneumonia, AspirationTracheostomyHumansIntubation, IntratrachealResidual VolumeRespiratory AspirationViscosityCuffLiquid viscositySuction portTracheostomy tubeTube tilt angleUpper cuff residual volume

Identifiers

PMID37843617
PMCPMC10764502
OpenAlexW4387661536

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.