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PT  - JOURNAL ARTICLE
AU  - van Rooij, W.J.
AU  - Sluzewski, M.
AU  - Beute, G.N.
TI  - Endovascular Treatment of Posterior Cerebral Artery Aneurysms
DP  - 2006 Feb 01
TA  - American Journal of Neuroradiology
PG  - 300--305
VI  - 27
IP  - 2
4099  - http://www.ajnr.org/content/27/2/300.short
4100  - http://www.ajnr.org/content/27/2/300.full
SO  - Am. J. Neuroradiol.2006 Feb 01; 27
AB  - BACKGROUND AND PURPOSE: The purpose of this study was to report the incidence, clinical presentation, endovascular treatment, and outcome of aneurysms of the posterior cerebral artery (PCA).PATIENTS AND METHODS: Among 1880 aneurysms treated between January 1995 and January 2005, 22 aneurysms (1.2%) in 22 patients were located on the PCA. Ten patients presented with subarachnoid hemorrhage (SAH) from the PCA aneurysm: 2 of these patients had additional visual field deficits and 2 had additional occulomotor palsy. One patient presented with acute occulomotor palsy only. Eleven PCA aneurysms were unruptured: 9 were additional to another ruptured aneurysm and 2 were incidentally discovered. Three aneurysms were &amp;gt;15 mm and the other 19 aneurysms were ≤8 mm. Eighteen aneurysms were saccular, 2 were fusiform, one was dissecting, and one was mycotic.RESULTS: All aneurysms were successfully treated, 17 with selective occlusion of the aneurysm with coils and 5 with simultaneous occlusion of the aneurysm and parent PCA with coils. There were no complications of treatment. Two patients died of sequelae of SAH shortly after treatment. One patient died 2 months after coiling of an unruptured P1 aneurysm with intramural thrombus of SAH from the same aneurysm. One patient had persistent hemianopsia. In 2 patients with intact visual field in which the parent PCA was occluded, no hemianopsia developed due to sufficient leptomeningeal collateral circulation.CONCLUSION: Aneurysms of the PCA are rare with an incidence in our practice of 1.2% of all types of aneurysms. Clinical presentation is variable with SAH, occulomotor palsy, visual field deficit or a combination. Endovascular treatment with either selective occlusion of the aneurysm or occlusion of the aneurysm together with the parent artery with coils is safe and effective with good clinical results.