Abstract
Deviated blade fenestrated clips developed by one of us were applied very successfully in 55 cases of cerebral aneurysms. Among them, there were 36 cases of ICA aneurysms and 14 cases of A Com A aneurysms which corresponded to 33% of the aneurysms operated on.
The characteristic feature of the clip is its lateral deviation of occluding blades. Eleven different types of this clip are currently available.
In cases where the neck of a cerebral aneurysm is located obliquely in the rear of the parent artery in the operative field, this clip is particularly effective. The clip is capable of closure parallel to the parent artery axis at the aneurysm neck, so that major rupture at the neck by the edge of the blades or residue of aneurysm neck were significantly eliminated. There was actually no rupture at the neck of the aneurysms, except for one giant IC-PC aneurysm.
As a large majority of ICA aneurysms are located postero-lateral to the parent artery in the operative field, and superiorly projecting type of A Com A aneurysm is also located postero-lateral to A Com A, which is the most difficult and hazardous if it is ruptured at the neck, the clips were extremely useful in these aneurysms to provide safer and more exact occlusion of the aneurysm neck.
