Onyx for embolization of life-threatening hemoptysis: A promising but luxury embolic agent!

摘要

We read with great interest the article by Bommart et al. recently published in Cardiovascular and Interventional Radiology, which reported the effectiveness of selective arterial embolization using Onyx~R in patients with life-threatening hemoptysis [1]. We have several comments. Since its marketing, Onyx~R has been used for the endovascular treatment of intracranial aneurysms and cerebral arteriovenous malformations [2]. Until now, few studies have examined its use for peripheral applications. Onyx~R is a biocompatible polymer, which is an ethylene vinyl alcohol copolymer (EVOH) that is dissolved in an organic solvent-dimethyl-sulfoxide (DMSO). It becomes radiopaque by mixing with micronized tantalum powder.