John E. Coe, Paul Dirlik and Ayub K. Ommaya
Ayub K. Ommaya and Maitland Baldwin
Fred H. Faas and Ayub K. Ommaya
Thomas P. Krueger, James McFarland and Ayub K. Ommaya
Ayub K. Ommaya, John W. Boretos and Ernest E. Beile
John Coe and Ayub K. Ommaya
John L. Doppman, Giovanni Di Chiro and Ayub K. Ommaya
✓ A technique is described for embolically occluding the feeding arteries of spinal cord arteriovenous malformations by non-operative means. Following the identification of each feeder by selective arteriography, a system of coaxial catheters is introduced percutaneously and each feeding artery is occluded within the spinal canal using metallic pellets, gelfoam, and muscle fragments. Technical details of the procedure are described and the choice of embolic material discussed. Embolization has been successfully accomplished in five patients. None were made worse, and three have shown progressive neurological improvement. The simplicity of the procedure and the absence of morbidity are stressed. Percutaneous embolization should be considered as an alternative to operative ligation of feeding arteries.
Norman Peters and Ayub K. Ommaya
✓ A lightweight adjustable double microvascular clamp is described that requires only one adjustment before application for anastomosis of arteries.