Evidence map›Paper›PMID 15580475›Full record

ArticleIntensive care medicine2004

Endotracheal tube intraluminal diameter narrowing after mechanical ventilation: use of acoustic reflectometry.

M C Boqué, B Gualis, A Sandiumenge, J Rello

Registry-linked trialOpen access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Intensive care medicine, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01765530 (Endotracheal Tubes Cleaned With a Novel Mechanism for Secretions Removal), which is not on this map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
5.0field-weighted citation impact, top 5% 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.

NCT01765530 nacompletednot on this mapstarted 2012, after this paper: background citation

Endotracheal Tubes Cleaned With a Novel Mechanism for Secretions Removal

TypeinterventionalSponsorMassachusetts General HospitalRan2012 to 2013Enrolled74ConditionsEndotracheal Extubation, Airway Obstruction, Airway Control, Pneumonia, Ventilator-AssociatedArmsETT cleaning maneuver
3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 74 citations in OpenAlex.

  1. Trial
  2. Article
  3. Evaluation of a novel endotracheal tube suctioning system incorporating an inflatable sweeper.Canadian journal of respiratory therapy : CJRT = Revue canadienne de la therapie respiratoire : RCTR · 2021
    Article
  4. Critical care research and practice · 2018
    Article
  5. Article
  6. Article
  7. Observational
  8. Sound analysis in an in vitro endotracheal tube model.The Korean journal of internal medicine · 2011
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. 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

4 authors at 2 institutions in 1 country.

M C BoquéUniversity Hospital Joan XXIII, University Rovira i Virgili, Mallafré Guasch 4, 43007 Tarragona, Spain. cboque@hjxxiii.scs.es
B Gualis
A Sandiumenge
J Rello
Hospital Universitari Joan XXIII de Tarragona · ESUniversidad Rovira i Virgili · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo quantify the incidence and degree of endotracheal tube intraluminal obstruction after mechanical ventilation and its relation to time of intubation.

designProspective observational study.

settingA 14-bed medical-surgical intensive care unit at a university-affiliated teaching hospital. PATIENTS: Ninety-four endotracheal tubes used in 80 patients requiring mechanical ventilation for more than 12 h. INTERVENTIONS AND

resultsAcoustic reflectometry was performed in every endotracheal tube after patient extubation to measure its volume reduction. The intraluminal volumes of used endotracheal tubes in mechanically ventilated patients were significantly lower than those of unused tubes of the same size (5.52+/-0.92 ml(3) versus 6.54+/-0.79 ml(3), p<0.05). The mean difference in endotracheal tube segment volumes was 15.2% (range 0-66%). Volume reduction was above 10% in 60.8% of the tubes. In 22% of endotracheal tubes the remaining inner diameter was less than 7 mm. Reduction below this figure was less frequent (9.3%) in tubes 8 mm or more (p<0.05). The percentage of endotracheal tube volume reduction was not associated with the duration of intubation (r=-0.09, p= n.s.) Peak pressure measured before extubation did not predict obstruction (r=0.11, p= n.s.).

conclusionsInadvertent endotracheal tube obstruction was common in patients requiring mechanical ventilation and may be significant as early as at 24 h. Moderate obstruction in endotracheal tube lumens should be suspected in cases of difficulties in weaning, even in patients who were ventilated for less than 1 day.

Indexed as

Respiration, ArtificialAirway ObstructionEquipment DesignFemaleHumansIntubation, IntratrachealMaleMiddle AgedReflex, AcousticRespiratory InsufficiencyVentilator Weaning

Identifiers

PMID15580475
OpenAlexW2071693113

What OpenQuestion holds

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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.