[Interventional neuroradiology. A presentation with preliminary results].

During two periods (1.1.1981-3.1.1985 and 1.1.1988-31.12.1992) 57 patients were treated or attempted treated with endovascular embolization. The patients suffered either from arteriovenous malformations (AVM), dural arteriovenous malformations (DAVM), carotico-cavernous fistulas (CCF), giant aneurysms or meningenomas. During the first period the balloon-technique was mainly employed and only one isobutyl-2-cyanoacrylate (IBCA) embolization was carried out. Six AVMs and 11 CCFs were treated, and the complication rate was 33%. During the second period histoacryl/N-butyl-cyanoacrylate (NBCA) embolization was the treatment of choice for AVM and DAVM, and the balloon technique reserved for CCF and test occlusions. The complication rate was 8%. In 83% of the AVMs occlusion of more than 50% of the nidus was achieved. Three of five CCFs were occluded with one occluded internal carotid artery. There were no complications in test occlusions. Two DAVMs were reduced in size and the symptoms reduced. The patient material during this period consisted of 19 AVMs, two DAVMs, five CCFs, nine giant aneurysms (test occlusion) and five basal meningenomas with involvement of the internal carotid artery (test occlusion). The treatment of these relatively rare patients consists of close cooperation between the interventional neuroradiologist and the neurosurgical team.