Embolization treatment of cerebral arteriovenous malformations with Onyx-18:a clinical analysis

Objective To summarize the experience of using Onyx-18 embolization for the treatment of cerebral arteriovenous malformations.Methods Interventional embolization with Onyx-18 was carried out in 28 patients with cranial arteriovenous malformations.The clinical data and the therapeutic results were analyzed.The complications were observed.Results Of the 28 patients,the embolization degree of vascular malformations 80% was achieved in 4(total occlusion was obtained in 2 cases),50%-80% in 20,and 50% in 4.During or after the procedure five patients developed complications,including intracranial hemorrhage(n = 3),clay pipe(n = 1) and secondary epilepsy(n = 1).Conclusion Onyx-18 is an ideal embolization material for the treatment of cerebral arteriovenous malformations.To avoid the occurrence of complications the manipulative experience and skills are essentially required.