Endoscopic Endonasal Aneurysm Clip Ligation: An Anatomical Feasibility Study

Abstract

Introduction: The goal of making aneurysm surgery less invasive has led to the successful development and implementation of endovascular therapy. Another method for avoiding craniotomy would be an endonasal endoscopic transsphenoidal approach. Although scattered cases have been reported in the literature, the indications and anatomic constraints involved in choosing patients for such surgery are unknown. We present the first anatomical study to evaluate the feasibility of an endoscopic endonasal approach for placement of aneurysm clips in a variety of aneurysm locations and orientations.