title: Curative Transvenous Onyx Embolization of a Maxillary Arteriovenous Malformation in a Child: Report of a New Technique.
abstract: Endovascular management of maxillary arteriovenous malformation (AVMs) can be complex. Transarterial, transvenous, and direct puncture embolization has been described. The authors report the case of a 9-year-old girl with a hemorrhagic maxillary AVM, which has been treated by transvenous embolization after failure of transarterial embolization. The venous pouch was catheterized with a detachable tip microcatheter and occluded by slow Onyx injection. Onyx filled the pouch and retrogradely reached some arterial feeders, achieving complete occlusion. Bleeding episode ceased and at 6 months follow-up no recurrence was found. Maxillary AVMs can be successfully treated by transvenous Onyx embolization.
authors.affiliation: *Department of Interventional Neuroradiology †Maxillofacial Surgery Unit, Careggi University Hospital, Florence, Italy.
authors.forename: Nicola
authors.initials: N
authors.lastname: Limbucci
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Spinelli
authors.forename: Sergio
authors.initials: S
authors.lastname: Nappini
authors.forename: Leonardo
authors.initials: L
authors.lastname: Renieri
authors.forename: Arturo
authors.initials: A
authors.lastname: Consoli
authors.forename: Andrea
authors.initials: A
authors.lastname: Rosi
authors.forename: Salvatore
authors.initials: S
authors.lastname: Mangiafico
mesh_terms: D001165:Arteriovenous Malformations / Q000000981:diagnostic imaging / Q000628:therapy*; D002404:Catheterization; D002648:Child; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008437:Maxilla / Q000098:blood supply* / Q000000981:diagnostic imaging; D008438:Maxillary Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging; D011862:Radiography, Panoramic; D019233:Retreatment; D014680:Veins / Q000002:abnormalities / Q000000981:diagnostic imaging