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Updated: Nov 7, 2025

Catheter-based Endovascular Angioplasty for Fibrosing Mediastinitis-associated Pulmonary Vein Stenosis
Published on: August 26, 2025
Balloon pulmonary angioplasty in chronic thromboembolic pulmonary hypertension
Kyoko Hirakawa1, Eiichiro Yamamoto2, Seiji Takashio2
1Department of Cardiovascular Medicine, Faculty of Life Science, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan. kyoko-h@kumamoto-u.ac.jp.
Insights
Chronic thromboembolic pulmonary hypertension (CTEPH) treatments like pulmonary endarterectomy and balloon pulmonary angioplasty (BPA) improve patient outcomes. This review covers advances in CTEPH imaging, surgical, and interventional techniques for better hemodynamics and survival.
Area of Science:
- Cardiology
- Pulmonology
- Interventional Radiology
Background:
- Chronic thromboembolic pulmonary hypertension (CTEPH) results from pulmonary artery obstruction by blood clots.
- Untreated CTEPH carries a poor prognosis, but established therapies improve hemodynamics and survival.
Purpose of the Study:
- To review the evolving field of CTEPH.
- To highlight advancements in imaging, surgical, and interventional treatments for CTEPH.
Main Methods:
- Review of current literature on CTEPH therapies.
- Discussion of imaging modalities, surgical techniques, and interventional procedures like BPA.
Main Results:
- Pulmonary endarterectomy, BPA, and medical therapy have improved hemodynamics and right ventricular function in CTEPH patients.
- BPA is a key therapy for inoperable CTEPH, though access is limited.
Conclusions:
- Advances in CTEPH management, including imaging and interventions, have led to improved long-term survival.
- Continued development in surgical and interventional techniques is crucial for managing CTEPH.
Abstract:
Chronic thromboembolic pulmonary hypertension (CTEPH) is caused by chronic stenosis or obstruction of the pulmonary arteries due to thromboembolism. Although previous studies have shown untreated CTEPH has a poor prognosis, the establishment of gold-standard therapies including pulmonary endarterectomy, balloon pulmonary angioplasty (BPA), and medical therapy has improved hemodynamics and right ventricular function, leading to good long-term survival. BPA is an important therapy for patients with inoperable CTEPH, although the procedure is currently limited to specific institutions and operators. This review discusses the development of the rapidly evolving field of CTEPH that includes improvements in imaging modalities and advances in surgical and interventional techniques.
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