Onyx(®) in endovascular treatment of cerebral arteriovenous malformations - a review.

摘要: Arteriovenous malformation (AVM) is an abnormal connection between arteries and veins, bypassing the capillary system. In most cases, disorder may be asymptomatic. The objective of endovascular AVM treatment set individually for each case upon consultations with a neurosurgeon neurologist. endpoint should consist in prevention bleeding management procedure characterized by significantly lower risk complications as compared to natural history AVM. Endovascular interventions within include curative exclusion from circulation, embolization adjuvant resection or radiation therapy, targeted closure previously identified site well palliative embolization. Onyx was first described 1990s. It non-adhesive radiolucent compound. Onyx-based lumen vessel obtained means precipitation. process enhanced peripherally main flux injected mixture. This facilitates angiographic monitoring at any stage. degree associated location vessel. Supratentorial cortical locations are advantageous. Dense plexiform structure nidus low number supplying vessels single superficial drainage vein usually advantageous administration. Unfavorable factors into multiple compartments multiarterial supply AVM, particularly meningeal arteries, en-passant perforating feeders. appears safe efficient material cerebral AVMs, also cases intracranial Curative small AVMs alternative neurosurgical radiosurgical methods. Careful assessment individual arteriovenous malformations performed before