A Stepwise Embolization Strategy for a Bronchial Arterial Aneurysm: Proximal Coil and Distal Glue with the Optional Use of a Microballoon Occlusion System - PubMed (original) (raw)

. 2018 Aug;41(8):1267-1273.

doi: 10.1007/s00270-018-1969-1. Epub 2018 Apr 23.

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A Stepwise Embolization Strategy for a Bronchial Arterial Aneurysm: Proximal Coil and Distal Glue with the Optional Use of a Microballoon Occlusion System

Takahiko Mine et al. Cardiovasc Intervent Radiol. 2018 Aug.

Abstract

Purpose: This study aimed to demonstrate a transcatheter embolization strategy for bronchial artery aneurysms (BAAs) using coils for the proximal lesion and glue (n-butyl-2-cyanoacrylate [NBCA]) embolization for the distal lesion with or without the use of a microballoon occlusion catheter.

Materials and methods: Five patients with BAAs presenting with hemoptysis were enrolled in this study. A bronchial angiogram indicated a mediastinal BAA near the orifice, accompanied by dilated distal branches with or without intrapulmonary BAA. A stepwise procedure was performed. First, the intrapulmonary branches were embolized with glue, with or without the use of a microballoon catheter depending upon the anatomical and local flow hemodynamic conditions. Second, the mediastinal BAA was tightly packed with detachable coils.

Results: Glue embolization of intrapulmonary abnormal branches successfully controlled hemoptysis in all patients; microballoon catheters were used in five of the 10 arteries. The volume embolization ratio of coils within the mediastinal BAA ranged from 28 to 59%, and neither coil compaction nor signs of recanalization were observed during follow-up.

Conclusion: The stepwise embolization procedure with the sequential use of glue (with or without a microballoon occlusion system) and detachable coils may represent a possible endovascular strategy for the treatment of complex BAAs.

Level of evidence iv: Level 4: Case Series.

Keywords: Bronchial arterial aneurysm; Bronchial arterial embolization; Detachable coil; Hemoptysis; n-Butyl cyanoacrylate.

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