ArticleCureus2025
Discrepant Results of Post-valve CT Analysis and Pulmonary Function Test in Patients Undergoing Bronchoscopic Lung Volume Reduction.
Article in Cureus, 2025. 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
6 authors.
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Abstract
Introduction Emphysema is a debilitating form of chronic obstructive pulmonary disease (COPD) that causes lung hyperinflation and air trapping, leading to reduced quality of life. Bronchoscopic lung volume reduction (BLVR) with endobronchial valves (EBVs) offers a minimally invasive treatment option by collapsing diseased lung segments to improve respiratory mechanics. While both CT and pulmonary function testing (PFT) are used to assess outcomes, it remains unclear whether post-procedural volume changes measured by CT correlate with functional improvements seen on PFT. Materials and methods We performed a single-center chart review of patients who underwent BLVR with EBV from January 2019 to December 2023 who had both pre-and post-procedure PFT and CT volume analysis performed. Data recorded included clinical and demographic characteristics, post-valve analysis, and PFT. Results A total of 14 patients were included in our study. A comparison of total lung volume change between post-BLVR CT analysis and PFT showed a -3% total volume change in post-BLVR CT analysis versus -6% total volume change in PFT. Post-BLVR CT analysis showed a median volume change of -247 mL versus PFT with -490 mL volume change. The volume change in PFT and post-BLVR CT analysis did not show a linear correlation (p = 0.315, R
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