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Surg Neurol. 2005 May;63(5):424-32; discussion 432-3.

Intracranial aneurysms in the pediatric population: case series and literature review.

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  • 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.

Abstract

BACKGROUND:

Intracranial aneurysms in children (< or =18 years old) are rare, and their epidemiology is poorly understood. We present a prospective 14-year experience at our institution and review the literature to clarify the characteristics and outcomes of pediatric patients with intracranial aneurysms.

METHODS:

Review of medical records in the Johns Hopkins aneurysm prospective database and review of the literature since 1939 were performed.

RESULTS:

Of 1377 intracranial aneurysm cases at our institution from 1991 to 2004, 19 (1.4%) pediatric patients were treated using microsurgical or endovascular techniques. Male/female ratio was 2.2:1. Eleven percent occurred at the internal carotid artery (ICA) bifurcation, and 42% were located in the posterior circulation. Seven (37%) were giant lesions; 58% presented with subarachnoid hemorrhage. Patients in good Hunt and Hess grade (I-III) comprised 42%, and poor-grade (IV-V) patients comprised 16%. At a mean follow-up duration of 3.0 +/- 3 years, 95% of patients demonstrated favorable outcomes with Glasgow Outcome Scale score of 4 or 5. In the literature, a total of 706 pediatric intracranial aneurysm cases have been described since 1939. The male/female ratio is 1.8:1. The ICA bifurcation was the location in 26%, and only 17% were in the posterior circulation. Twenty percent were giant lesions, and 80% presented with subarachnoid hemorrhage. Good- and poor-grade patients comprise 49% and 36% of the total cases, respectively. Favorable outcome was reported in 60%.

CONCLUSIONS:

During recent decades, good outcomes after the treatment of ruptured and unruptured pediatric aneurysms have increased, reaching 95% in the current series. Pediatric intracranial aneurysms occur more commonly in male patients and have a predilection for the terminal ICA bifurcation.

PMID:
15883063
[PubMed - indexed for MEDLINE]
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