• Kyle P O'Connor, Allison E Strickland, Griffin L Ernst, Camille K Milton, Ahmed A Cheema, and Bradley N Bohnstedt.
• Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA.
• World Neurosurg. 2020 Jan 1; 133: 172.

AbstractA 5-year-old girl was brought to the clinic because of chronic intermittent left-sided headaches. The patient underwent computed tomographic angiography, which demonstrated a giant aneurysm that involved the P2 segment of the left posterior cerebral artery. Before treatment proceeded, consent was obtained from the patient's legal guardian. A trapping-evacuation technique was used for proximal control and decompression so that a clip could be placed on the proximal inflow artery of the aneurysm. First, embolization was performed for aneurysm trapping and for sacrifice of the parent vessel. Two days later, the patient was taken to the operating room for open surgical decompression, clipping, and reconstruction. Heparin was administered during the embolization stage of the operation. The patient did well postoperatively and was discharged home. The 3-month follow-up evaluation demonstrated a right superior homonymous quadrantanopia and no other neurologic deficits. The patient's clinical course is summarized in Video 1.Copyright © 2019 Elsevier Inc. All rights reserved.

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