Evidence map›Paper›PMID 34007166›Full record

ArticleInternational journal of chronic obstructive pulmonary disease

Burden and Characteristics of Severe Chronic Hypoxemia in a Real-World Cohort of Subjects with COPD.

Maéva Zysman, Gaëtan Deslee, Thierry Perez, Pierre-Régis Burgel, Olivier Le Rouzic, Graziella Brinchault-Rabin, Pascale Nesme-Meyer, Isabelle Court-Fortune, Gilles Jebrak, Pascal Chanez and 3 more

Open access · goldAbstract read
In one paragraph

Article in International journal of chronic obstructive pulmonary disease. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 2 pooled it
2.5field-weighted citation impact, top 10% 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

7 citing papers in PubMed, 2 syntheses or guidelines pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. NT-proBNP in Different Patient Groups of COPD: A Systematic Review and Meta-Analysis.International journal of chronic obstructive pulmonary disease · 2023
    Pooled it
  3. Lung Hyperinflation as Treatable Trait in Chronic Obstructive Pulmonary Disease: A Narrative Review.International journal of chronic obstructive pulmonary disease · 2024
    Review
  4. Article
  5. Article
  6. Review
  7. 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

13 authors at 7 institutions in 1 country.

Maéva ZysmanPulmonary Department, Pôle Cardio-thoracique, CHU Haut-Lévèque, INSERM U1045, Bordeaux, France.ORCID 0000-0003-1459-2409
Gaëtan DesleePulmonary Department, Maison Blanche University Hospital, INSERM U01250, Reims, France.
Thierry PerezUniversity Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, Lille, France.ORCID 0000-0003-2749-0903
Pierre-Régis BurgelRespiratory Medicine, Cochin Hospital, AP-HP and Université de Paris, Institut Cochin, INSERM U1016, Paris, France.ORCID 0000-0003-0903-9828
Olivier Le RouzicUniversity Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, Lille, France.ORCID 0000-0003-4439-2950
Graziella Brinchault-RabinService de Pneumologie, Hôpital Pontchaillou, Rennes, France.
Pascale Nesme-MeyerService de Pneumologie, Hôpital de la Croix-Rousse, Lyon, France.
Isabelle Court-FortuneService de Pneumologie, CHU Saint Etienne, Saint Etienne, France.ORCID 0000-0002-0934-0736
Gilles JebrakService de Pneumologie, Hôpital Bichat, AP-HP, Paris, France.
Pascal ChanezDépartement des Maladies Respiratoires, AP-HM, Université de la Méditerranée, Marseille, France.
Denis CaillaudService de Pneumologie, Hôpital Gabriel Montpied, CHU, Clermont-Ferrand, France.ORCID 0000-0001-7519-1102
Jean-Louis PaillasseurEFFI-STAT, Paris, France.
Nicolas RocheRespiratory Medicine, Cochin Hospital, AP-HP and Université de Paris, Institut Cochin, INSERM U1016, Paris, France.ORCID 0000-0002-3162-5033
Inserm · FRCentre National de la Recherche Scientifique · FRAssistance Publique – Hôpitaux de Paris · FRCentre Hospitalier Universitaire de Saint-Étienne · FRHôpital de la Croix-Rousse · FRHôpital Pontchaillou · FRInstitut de Neurobiologie de la Méditerranée · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic respiratory failure may occur as a consequence of chronic obstructive pulmonary disease (COPD) and is associated with significant morbidity and mortality. Hypoxemia is determined by underlying disease characteristics and comorbidities. Severe hypoxemia is typically only found in subjects with severe airflow obstruction (FEV

methodsIn the French Initiatives BPCO real-life cohort, arterial blood gases were routinely collected in most patients. Relationships between severe hypoxemia, defined by a Pa0

resultsArterial blood gases were available from 887 subjects, of which 146 (16%) exhibited severe hypoxemia. Compared to subjects with a PaO2≥60 mmHg, the severe hypoxemia group exhibited higher mMRC dyspnea score, lower FEV

conclusionIn this cohort of stable COPD subjects, severe hypoxemia was associated with worse prognosis and more severe symptoms, airflow limitation and hyperinflation. Compared to subjects with severe hypoxemia and severe airflow limitation, subjects with severe hypoxemia despite non-severe airflow limitation were older, had higher BMI and more diagnosed diabetes.

trial registration04-479.

Indexed as

Pulmonary Disease, Chronic ObstructiveQuality of LifeForced Expiratory VolumeHumansHypoxiaLungRespiratory Function Testsairflow limitationchronic obstructive pulmonary diseasesevere hypoxemia

Identifiers

PMID34007166
PMCPMC8121159
OpenAlexW3163643893

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.