Abstract
Objective To explore the role of superselective catheterization techniques in curative embolization of dural arteriovenous fistula (DAVF). Methods A total of 20 cases DAVF patients who underwent endovascular embolization were analyzed retrospectively. Based one data of preoperative CT and DSA, transarterial approach in 19 cases, transvenous approach in 1 cases; 17 cases using Onyx-18 embolization, 3 cases selected balloon embolization. After 3 months to 1 year, the fistula and clinical efficacy were followed up. Results Operations were successful in all patients, 18 cases (18/20, 90.00%) achieved super-selective embolization, 2 cases (2/20, 10.00%) with embolic perfusion pressure gradient through the bloodstream. Immediate postoperative angiography showed complete thrombosis of the fistula 15 cases (15/20, 75.00%), subtotal embolism 2 cases (2/20, 10.00%), incomplete embolization 3 cases (3/20, 15.00%), without rebleeding and indwelling catheter and so on. After 3 months to 1 year review, curative embolization 17 cases (17/20, 85.00%), improvement in 3 cases (3/20, 15.00%), ineffective in 0 case. Conclusions Superselective catheterization technique is the key to curative embolization DAVF and reduce related complications. Key words: Central nervous system vascular malformations; Embolization, therapeutic
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