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Bronchial artery embolization using small particles is safe and effective: a single center 12-year experience
Frances Sheehan1, Alison Graham1, N Paul Tait1
1Imaging Department, Imperial College Healthcare NHS Trust, London, UK.
European Radiology
|June 11, 2024
Summary
Bronchial artery embolization (BAE) using smaller polyvinyl alcohol (PVA) particles (150-250 µm) is safe and effective for treating hemoptysis. This approach significantly reduces early recurrence rates without increasing procedural complications.
Area of Science:
- Interventional Radiology
- Vascular Surgery
- Pulmonary Medicine
Background:
- Bronchial artery embolization (BAE) is a standard treatment for hemoptysis.
- Larger polyvinyl alcohol (PVA) particles (≥300 µm) may cause proximal occlusion and early recurrence.
- Smaller PVA particles are being investigated to improve BAE outcomes.
Purpose of the Study:
- To evaluate the safety and efficacy of BAE using PVA particles sized 150-250 µm.
- To assess complication rates and recurrence of hemoptysis with smaller PVA particles.
Main Methods:
- Retrospective analysis of 144 patients undergoing 189 BAE procedures (2010-2022).
- Embolization initiated with 150-250 µm PVA particles, with larger sizes used selectively.
- Kaplan-Meier method used for recurrence and survival rate estimation.
Main Results:
- 137 cases used 150-250 µm PVA particles exclusively.
- Early hemoptysis recurrence within 30 days occurred in 7% of patients.
- Major complication rate was 1%, with no stroke or spinal ischemia; 30-day mortality was 2%.
Conclusions:
- BAE with 150-250 µm PVA particles is a safe and effective treatment for hemoptysis.
- Smaller PVA particles are associated with low early recurrence rates and few complications.
- Pulmonary artery pseudoaneurysms require vigilant monitoring in patients undergoing BAE.
