• Seung-Hoon Jung, Sung-Hyun Kim, Tae-Sun Kim, and Sung-Pil Joo.
• Department of Neurosurgery, Chonnam National University Hospital and Medical School, Gwangju, Republic of Korea.
• World Neurosurg. 2017 Feb 1; 98: 243-250.

ObjectiveTraumatic intracranial aneurysm (tIA) is rare and is associated with high rates of morbidity and mortality. We describe our experiences with tIA at our institution.MethodsWe retrospectively reviewed records from patients who underwent treatment for tIA between January 1986 and December 2015.ResultsData from 5532 patients with cerebral aneurysms between January 1986 and December 2015 were reviewed. Of these, 13 cases (0.23%) were tIA. Most occurred after blunt brain trauma (12/13; 92%). The most common location was the distal anterior cerebral artery (7/13; 53%) followed by the internal carotid artery (5/13; 38%). One patient had a tIA in the distal middle cerebral artery. Delayed intracerebral hemorrhage was the major presentation at the time of aneurysmal rupture (70%). Most patients underwent surgical treatment (10/12; 83.3%), which included clipping (5/10), trapping (3/10), aneurysmal excision and bypass (1/10), and aneurysmal excision and coagulation (1/10). In 2 cases, tIA located in the internal carotid artery was treated with coil embolization and detachable balloon occlusion, respectively. Most patients had good recovery (5/12; 41.7%); 3 patients and 1 patient had moderate and severe disability, respectively; 1 patient was in a vegetative state; and 2 patients died.ConclusionstIA is an uncommon complication of head trauma. tIA should be considered when unexpected new symptoms develop in patients with head trauma. Early diagnosis and prompt treatment could help to improve final clinical outcomes.Copyright © 2016 Elsevier Inc. All rights reserved.

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