Objective To evaluate the effect of transvenous embolization treatment of refractory traumatic carotid-cavernous fistula(TCCF), and emphasize the importance of keeping carotid artery unobstuction. Methods We retrospectively analyzed 8TCCF treated by transvenous coil combined Onyx glue embolization approach in the past three years. all cases treated by transarterial balloon blocking the fistula approach failed, then received transvenous embolization of the fistula. After 3-18 months, we evaluated the efficia...