Evidence map›Paper›PMID 36923563›Full record

ArticleERJ open research2023

Hypoxia-altitude simulation test to predict altitude-related adverse health effects in COPD patients.

Meret Bauer, Julian Müller, Simon R Schneider, Simone Buenzli, Michael Furian, Tanja Ulrich, Arcangelo F Carta, Patrick R Bader, Mona Lichtblau, Ajian Taalaibekova and 5 more

Open access · goldAbstract read
In one paragraph

Article in ERJ open research, 2023. 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
1.1field-weighted citation impact, top 19% 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, 6 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

15 authors at 3 institutions in 3 countries.

Meret BauerUniversity of Zurich and University Hospital of Zurich, Clinic of Pulmonology, University Hospital Zurich, Zurich, Switzerland.
Julian MüllerUniversity of Zurich and University Hospital of Zurich, Clinic of Pulmonology, University Hospital Zurich, Zurich, Switzerland.ORCID https://orcid.org/0000-0003-4059-5937
Simon R SchneiderUniversity of Zurich and University Hospital of Zurich, Clinic of Pulmonology, University Hospital Zurich, Zurich, Switzerland.ORCID https://orcid.org/0000-0003-3635-0515
Simone BuenzliUniversity of Zurich and University Hospital of Zurich, Clinic of Pulmonology, University Hospital Zurich, Zurich, Switzerland.
Michael FurianUniversity of Zurich and University Hospital of Zurich, Clinic of Pulmonology, University Hospital Zurich, Zurich, Switzerland.ORCID https://orcid.org/0000-0002-8518-5029
Tanja UlrichUniversity of Zurich and University Hospital of Zurich, Clinic of Pulmonology, University Hospital Zurich, Zurich, Switzerland.
Arcangelo F CartaUniversity of Zurich and University Hospital of Zurich, Clinic of Pulmonology, University Hospital Zurich, Zurich, Switzerland.ORCID https://orcid.org/0000-0001-8019-7429
Patrick R BaderUniversity of Zurich and University Hospital of Zurich, Clinic of Pulmonology, University Hospital Zurich, Zurich, Switzerland.
Mona LichtblauUniversity of Zurich and University Hospital of Zurich, Clinic of Pulmonology, University Hospital Zurich, Zurich, Switzerland.ORCID https://orcid.org/0000-0003-4485-1758
Ajian TaalaibekovaSwiss-Kyrgyz High Altitude Medicine and Research Initiative, Zurich, Switzerland, and Bishkek, Kyrgyz Republic.
Madiiar RaimberdievSwiss-Kyrgyz High Altitude Medicine and Research Initiative, Zurich, Switzerland, and Bishkek, Kyrgyz Republic.
Benoit ChampigneulleSwiss-Kyrgyz High Altitude Medicine and Research Initiative, Zurich, Switzerland, and Bishkek, Kyrgyz Republic.
Talant SooronbaevSwiss-Kyrgyz High Altitude Medicine and Research Initiative, Zurich, Switzerland, and Bishkek, Kyrgyz Republic.
Konrad E BlochUniversity of Zurich and University Hospital of Zurich, Clinic of Pulmonology, University Hospital Zurich, Zurich, Switzerland.
Silvia UlrichUniversity of Zurich and University Hospital of Zurich, Clinic of Pulmonology, University Hospital Zurich, Zurich, Switzerland.ORCID https://orcid.org/0000-0002-5250-5022
University of Zurich · CHNational Center of Cardiology and Internal Medicine · KGInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background/aims: Amongst numerous travellers to high altitude (HA) are many with the highly prevalent COPD, who are at particular risk for altitude-related adverse health effects (ARAHE). We then investigated the hypoxia-altitude simulation test (HAST) to predict ARAHE in COPD patients travelling to altitude. Methods: This prospective diagnostic accuracy study included 75 COPD patients: 40 women, age 58±9 years, forced expiratory volume in 1 s (FEV Results: ARAHE occurred in 50 (66%) patients and 23 out of 75 (31%) were positive on HAST according to Conclusion: In COPD patients ascending to HA, ARAHE are common. Despite an acceptable positive predictive value of the HAST to predict ARAHE, its clinical use is limited by its insufficient sensitivity and overall accuracy. Counselling COPD patients before altitude travel remains challenging and best focuses on early recognition and treatment of ARAHE with oxygen and descent.

Identifiers

PMID36923563
PMCPMC10009702
OpenAlexW4312076895

What OpenQuestion holds

Textmetadata
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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.