Document type
ArticleVersion
Published versionPublication date
Publication license
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/221363
Cone beam CT pulmonary angiography in balloon pulmonary angioplasty for chronic thromboembolic pulmonary hypertension during the program initiation period
Journal Title
Director/Tutor
Journal ISSN
Volume Title
Related resource
Abstract
AIM Cone beam CT pulmonary angiography (CBCT-PA) has proven to be a valuable technique during balloon pulmonary angioplasty (BPA) for chronic thromboembolic pulmonary hypertension (CTEPH) in established centres. This study aimed to demonstrate the safety and efficacy of CBCT-PA-guided BPA for CTEPH during the initial period of a BPA program. CBCT-PA improves procedural accuracy by visualising distal thromboembolic lesions and providing real-time guidance, which is critical during program initiation. MATERIALS AND METHODS This single-centre, single-arm study prospectively evaluated patients with CTEPH undergoing BPA from 2017 to 2022. Outcomes of interest included pre-BPA and post-BPA 6-minute walking distance, New York Heart Association Functional Classification (NYHA-FC), mean pulmonary artery pressure (mPAP), pulmonary vascular resistance (PVR), N-terminal pro B-type natriuretic peptide (NT-proBNP), and BPA-related adverse events (AEs). Statistical analysis compared pre-BPA and post-BPA results. CBCT-PA was used for three-dimensional (3D) vascular mapping and precise lesion targeting. RESULTS Ninety BPA sessions were performed on 19 patients under CBCT-PA guidance. Significant improvements were observed in mPAP (37.0 mmHg [interquartile range (IQR): 28.0-46.0] vs 25.5 [IQR: 22.8-31.5]; P<0.001), PVR (5.5 Wood units [IQR: 3.4-8.5] vs 3.3 [IQR: 2.7-4.6]; P < 0.001), NYHA-FC I-II rate (8 [42%] vs 18 [94%]; P = 0.04), and NT-proBNP (165 pg/mL [IQR: 82-1146] vs 127.0 [IQR: 57-216]; P = 0.014). Overall AE rate was 14.4%, and major AE rate was 7.7% (all Cardiovascular and Interventional Radiology Society of Europe [CIRSE] grade 3). The haemoptysis rate was 4.4%. No periprocedural deaths were reported. CONCLUSION BPA performed under CBCT-PA guidance appeared to be an effective and safe approach in the program's initial period, helping achieving similar results as established centres.
Subject
Subject (English)
Citation
Citation
PÁEZ CARPIO, Alfredo, et al. Cone beam CT pulmonary angiography in balloon pulmonary angioplasty for chronic thromboembolic pulmonary hypertension during the program initiation period. Clinical Radiology. 2025. Vol. 84. ISSN 0009-9260. [consulted: 10 of August of 2026]. Available at: https://hdl.handle.net/2445/221363