• World Neurosurg · Oct 2022

    The lateral supraorbital craniotomy approach for anterior circulation aneurysms: A modern surgical case series in the endovascular era.

    • Kunal P Raygor, Joseph Garcia, Caleb Rutledge, Daniel A Tonetti, RaperDaniel M SDMSDepartment of Neurological Surgery, University of California, San Francisco, San Francisco, California, USA., and Adib A Abla.
    • Department of Neurological Surgery, University of California, San Francisco, San Francisco, California, USA.
    • World Neurosurg. 2022 Oct 1; 166: e799e807e799-e807.

    BackgroundThe lateral supraorbital (LSO) approach is a minimally invasive modification of the standard pterional approach to anterior circulation aneurysms. This study aimed to describe a dual-trained cerebrovascular neurosurgeon's first 18-month experience with the LSO approach, including decision-making criteria and lessons learned.MethodsThis retrospective case series analyzed 50 consecutive patients treated with LSO craniotomy for aneurysm clipping by a single surgeon. Aneurysms were separated into 3 categories by location: internal carotid artery, anterior communicating artery, and middle cerebral artery. Surgical characteristics were evaluated for differences by location and rupture status.ResultsAneurysm clipping via LSO was performed on 57 aneurysms in 50 patients. Fixed retraction was employed less often in patients with internal carotid artery aneurysms than in patients with anterior communicating artery, middle cerebral artery, or multiple aneurysms (10% vs. 68.2%, 45.5%, and 42.9, P = 0.02). Of patients, 26 (52%) presented with subarachnoid hemorrhage; the majority of patients (92.3%) had Hunt and Hess grade I-III. No differences were noted in intraoperative rupture rates, fixed retractor use, operative duration, or estimated blood loss by rupture status. Adverse events included permanent frontalis nerve palsy in 1 patient (2%), temporalis atrophy in 1 patient, and transient aphasia in 1 patient. No postoperative hematomas or strokes were observed.ConclusionsThe LSO approach can safely and effectively treat anterior circulation aneurysms and should be considered a viable minimally invasive option for aneurysm clipping. Further studies comparing the LSO approach with other cranial approaches are needed.Copyright © 2022 The Author(s). Published by Elsevier Inc. All rights reserved.

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