Stereotactic clipping of arteriovenous malformations of the brain.

The authors have developed a new technique for the stereotactic clipping of the feeding vessels of deep-seated arteriovenous malformations (AVM), for use when direct attack may be very dangerous or impossible. A special clipping device and the technique for its application are described. The instrument is introduced through a burr hole using the stereotactic apparatus designed by the authors. The clipping is monitored by intraoperative angiography. The method was used in 32 patients with supratentorial AVMs. It is concluded that in selected cases the method is effective, is less traumatic and gives successful results.