Objective:To evaluate the technical aspects.efficacy and safety in the treatment of cavous dural arteriovenous fistulae(DAVF)by transvenous liquid n-Butyl cyanoacrylate(NBCA)injection combined with coils placement in the cavous sinus.Methods:Eight patients with cavous DAVF,treated by transvenous embolization with combination of detachable coils and glue between February 2006 and February 2009 in our hospital,were retrospectively analyzed,including the clinical presentations,patts of angioarchitecture,methods of treatment and the results of follow-up.Results:In all 8 patients.9 transvenous and 1 transarterial interventions were carried out.A single endovascular procedure was performed in 6 patients and 2 patients had to be treated twice.Of the nine transvenous approaches,eight approaches were performed via inferior petrosal sinus(IPS)and 1 via the facial vein.Complete angiographic obliteration was achieved in all patients immediately after the embolization.There was no procedure-related morbidity except for mild headache for one to seven days after the embolization.Clinical cure was achieved in all cases during the clinical follow-up periods,ranging from8 months to 3 years.The follow-up angiography periods averaged 6.6 months with a range of 5-9 months,in which no recurrence was observed.Conclusion:In this small series,embolization with combination of glue and detachable coils by transvenous approaches was a safe,effective and economical method for the treatment of part of symptomatic patients presenting with complex cavous DAVE