ArticleJournal of thoracic disease2024
The effect of bronchoscopic lung volume reduction on the bronchodilator response.
Article in Journal of thoracic disease, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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.
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Authors and funding
4 authors.
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Abstract
Background: Bronchoscopic lung volume reduction (BLVR) is a method of achieving lung collapse in severely emphysematous regions. One of the measures of success is the improvement in post-bronchodilator forced expiratory volume in the first second (FEV Methods: We performed a retrospective study to analyze the change in BDR following BLVR. We included patients who underwent pulmonary function test (PFT) within 6 months of BLVR and confirmed complete lobar atelectasis. The pre-BLVR BDR for each patient served as the control, which was then compared to the post-BLVR BDR. The mean difference in the BDR before and after valve placement was determined. The comparison between pre- and post-BLVR means was performed using a Results: A total of 35 patients were assessed for the study. Fifteen patients were excluded (due to valve removal, incomplete lobar collapse, and no pre- or post-BLVR PFT available). Of the 20 remaining patients, 14 had a positive BDR at baseline before BLVR. Following BLVR, 13 of the 14 patients demonstrated a non-significant increase in the BDR. The mean BDR for pre- and post-valve was 83.6 Conclusions: BLVR may improve the BDR in patients with complete lobar atelectasis.
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