Evidence map›Paper›PMID 32152177›Full record

ArticleBMJ open respiratory research2020

Complications and discomfort after research bronchoscopy in the MicroCOPD study.

Elise Orvedal Leiten, Tomas Mikal Lind Eagan, Einar Marius Hjellestad Martinsen, Eli Nordeide, Gunnar Reksten Husebø, Kristel Svalland Knudsen, Sverre Lehmann, Øistein Svanes, Per Sigvald Bakke, Rune Nielsen

Open access · goldAbstract read
In one paragraph

Article in BMJ open respiratory research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
1.4field-weighted citation impact, top 16% 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.

  1. Pooled it
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  6. Comparative analysis of guidelines and recommendations for sedation during flexible bronchoscopy: a narrative review.European respiratory review : an official journal of the European Respiratory Society · 2025
    Review
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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

10 authors at 2 institutions in 1 country.

Elise Orvedal LeitenDepartment of Clinical Science, University of Bergen, Bergen, Norway elise.leiten@uib.no.ORCID 0000-0002-5588-9076
Tomas Mikal Lind EaganDepartment of Clinical Science, University of Bergen, Bergen, Norway.
Einar Marius Hjellestad MartinsenDepartment of Clinical Science, University of Bergen, Bergen, Norway.
Eli NordeideDepartment of Thoracic Medicine, Haukeland University Hospital, Bergen, Norway.
Gunnar Reksten HusebøDepartment of Clinical Science, University of Bergen, Bergen, Norway.
Kristel Svalland KnudsenDepartment of Thoracic Medicine, Haukeland University Hospital, Bergen, Norway.
Sverre LehmannDepartment of Clinical Science, University of Bergen, Bergen, Norway.
Øistein SvanesDepartment of Clinical Science, University of Bergen, Bergen, Norway.
Per Sigvald BakkeDepartment of Clinical Science, University of Bergen, Bergen, Norway.
Rune NielsenDepartment of Clinical Science, University of Bergen, Bergen, Norway.
Haukeland University Hospital · NOUniversity of Bergen · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundData on discomfort and complications from research bronchoscopy in chronic obstructive pulmonary disease (COPD) and asthma is limited. We present complications and discomfort occurring within a week after bronchoscopy, and investigate personal and procedural risk factors.

methods239 subjects with COPD, asthma or without lung disease underwent research bronchoscopies as part of a microbiome study of the lower airways (the MicroCOPD study). Bronchoscopy was done in the supine position with oral scope insertion with the option of light conscious alfentanil sedation. Sampling consisted of protected specimen brushes, bronchoalveolar lavage, small volume lavage and for some, endobronchial biopsies. Bleeding, desaturation, cough, haemodynamic changes, dyspnoea and other events that required an unplanned intervention or early termination of bronchoscopy were prospectively recorded. Follow-up consisted of a telephone interview where subjects rated discomfort and answered questions about fever sensation and respiratory symptoms in the week following bronchoscopy.

resultsAn unplanned intervention or early termination of bronchoscopy was required in 25.9% of bronchoscopies. Three subjects (1.3%) experienced potentially severe complications, of which all recovered without sequelae. COPD subjects experienced more dyspnoea than controls. Sedation and lower age was associated with less unplanned intervention or premature termination. About half of the subjects (47.7%) reported fever. Discomfort was associated with postprocedural fever, dread of bronchoscopy, higher score on the COPD Assessment Test and never-smoking. In subjects undergoing more than one bronchoscopy, the first bronchoscopy was often predictive for complications and postprocedural fever in the repeated bronchoscopy.

conclusionResearch bronchoscopies were not associated with more complications or discomfort in COPD subjects. 47.7% experienced postbronchoscopy fever sensation, which was associated with discomfort.

Indexed as

AgedAlfentanilAnalgesics, OpioidAsthmaBiopsyBronchoalveolar Lavage FluidBronchoscopyCase-Control StudiesDyspneaFemaleFeverFollow-Up StudiesHumansMaleMicrobiotaMiddle AgedAlfentanilAnalgesics, OpioidbronchoscopyCOPD epidemiology

Identifiers

PMID32152177
PMCPMC7064136
OpenAlexW3011134493

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.