BACKGROUND: Neurovascular surgeons have been trying to find a solution to the problem of surgical invasiveness by applying minimally invasive keyhole approaches. OBJECTIVE: To evaluate the feasibility and surgical outcomes of a superciliary keyhole approach for unruptured @entity438 (UIAs) as an alternative to a pterional approach. METHODS: The authors report on a consecutive series of @entity1 who underwent a superciliary approach for clipping UIAs smaller than 15 mm arising at the supraclinoid internal carotid artery (ICA), A1 segment, anterior communicating artery (ACoA), and M1 segment including the @entity2500 . The data were compared with a historical control group (n = 90) who underwent a pterional approach for UIAs. RESULTS: A total of 120 @entity439 were successfully clipped in 102 @entity1 with a mean age of 58 years. There was no direct mortality related to the surgery, and only 1 (1.0%) @entity1 developed significant morbidity adversely affecting the Glasgow Outcome Scale score. The superciliary approach demonstrated statistically significant advantages over the pterional approach, including a shorter operative duration (mean, 120 min), no intraoperative blood transfusion, and extremely rare @entity86 . In addition, temporalis @entity194 was rare and palsy of the frontalis persisting more than 6 months only occurred in 6 @entity1 (5.9%) and was resolved within 2 years. The overall cosmetic outcome was excellent. CONCLUSION: A superciliary approach can be a reasonable alternative to a pterional approach for small (<15 mm) UIAs arising at the supraclinoid ICA, A1, ACoA, and M1 segment including the MCA bifurcation.

Superciliary keyhole approach for small XXXX in anterior cerebral circulation.

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity2500 :: ('MESH:D020244', 'Disease') :: ['middle cerebral artery (MCA) bifurcation'] @entity439 :: ('MESH:D000783', 'Disease') :: ['aneurysms'] @entity194 :: ('MESH:D001284', 'Disease') :: ['atrophy'] @entity86 :: ('MESH:D019106', 'Disease') :: ['postoperative epidural hemorrhages'] @entity438 :: ('MESH:D002532', 'Disease') :: ['intracranial aneurysms']
@entity439 :: (MESH:D000783,Disease) :: ['unruptured aneurysms']
