Embolization of brain arteriovenous malformations with Onyx

Objective:To evaluate the method and clinical efficacy of embolization therapy for cerebral arteriovenous malformations(AVMs)with Onyx.Methods:all the 7 patients underwent cranial artery subtraction angiography and the supplying vessels to AVMs were identified.Marathon floating microcatheter was inserted into nidus of AVMs,then onyx was injected to it.Results:Effective embolization was achieved in all 7cases,50%～60% emboliazation in 5 cases,less than 50% embolization in 2 cases.No severe complication occured in all the cases.Conclusion:Onyx is the ideal embolism to AVMs and the clinical efficacy is definit.The operation should be careful to minimize the complication.