Prevalence of cerebral aneurysms in patients with persistent primitive trigeminal artery

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Object. The aim of this study was to determine the prevalence of cerebral saccular aneurysms in patients with persistent primitive trigeminal artery (PPTA). The prevalence of cerebral saccular aneurysms in patients with PPTA previously has been reported to be 14 to 32%, but this rate range is unreliable because it is based on collections of published case reports rather than a series of patients chosen in an unbiased manner.

Methods. The authors retrospectively evaluated their own series of 34 patients with PPTA to determine the prevalence of cerebral aneurysms in this population. The prevalence of intracranial aneurysms in patients with PPTA was approximately 3% (95% confidence interval 0–9%).

Conclusions. The prevalence of intracranial aneurysms in patients with PPTA is no greater than the prevalence of intracranial aneurysms in the general population.

Article Information

Address reprint requests to: Harry J. Cloft, M.D., Ph.D., Department of Radiology, Emory Hospital, 1364 Clifton Road NE, Atlanta, Georgia 30322. email: harry_cloft@emory.org.

© AANS, except where prohibited by US copyright law.

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