ArticleThe European respiratory journal2024
Airway tapering in COPD.
Article in The European respiratory journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Effects of pulmonary rehabilitation combined with inspiratory muscle training on lung function and exercise capacity in older patients with COPD: a systematic review and meta-analysis.Frontiers in medicine · 2025Pooled it
- Seeing is believing-on the utility of CT in phenotyping chronic obstructive pulmonary disease.The British journal of radiology · 2026Review
- Imaging in Chronic Obstructive Pulmonary Disease: Ready for Prime Time?Tuberculosis and respiratory diseases · 2026Article
- PiSlope: A New Tool to Evaluate Airway Remodeling.Radiology · 2024Article
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Authors and funding
6 authors.
Funding
Abstract
backgroundLuminal narrowing is a hallmark feature of airway remodelling in COPD, but current measures focus on airway wall remodelling. Quantification of the natural increase in cumulative cross-sectional area along the length of the human airway tree can facilitate assessment of airway narrowing.
methodsWe analysed the airway trees of 7641 subjects enrolled in the multicentre COPDGene cohort. Airway luminal tapering was assessed by estimating the slope of the change in cumulative cross-sectional area along the length of the airway tree over successive generations (T-Slope). We performed multivariable regression analyses to test the associations between T-Slope and lung function, St George's Respiratory Questionnaire score, modified Medical Research Council dyspnoea score, 6-min walk distance (6MWD), forced expiratory volume in 1 s (FEV
resultsThe mean±sd T-Slope decreased with increasing COPD severity: 2.69±0.70 mm
conclusionT-Slope is a measure of airway luminal remodelling and is associated with respiratory morbidity and mortality.
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Registered trials
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