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Permanent Clip Application

Last Updated: March 4, 2019

Figure 1:  Clip ligation of a giant atherosclerotic right-sided MCA aneurysm is shown. The following chapter will review the nuances of technique for such maneuvers.

Clip Selection

The selection of a specific style and shape of the aneurysm clip is made before the surgery based on the aneurysm’s anatomy including its size, shape, location, and morphology of the parent vessels and surrounding structures. 

The surrounding neurovascular structures, including the cranial nerves, affect the candidacy of a clip. Depending on the aneurysm, different clip styles and clipping techniques may be required for complete occlusion and collapse of the aneurysm neck. Select aneurysms require multiple clip or specialized clip configurations based on a careful study of the preoperative angiography.