{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T07:59:38Z","timestamp":1791878378360,"version":"4.3.4"},"reference-count":29,"publisher":"BMJ","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J NeuroIntervent Surg"],"accepted":{"date-parts":[[2012,3,8]]},"published-print":{"date-parts":[[2013,5]]},"abstract":"<jats:sec><jats:title>Backgroun and objective<\/jats:title><jats:p>Coiling of wide-necked basilar tip aneurysms is technically challenging and is often assisted by the placement of a stent. Stent placement in an anterograde fashion either with a single or Y-stent is typical. However, in some cases the posterior cerebral artery (PCA) angle of origin at the base of the aneurysm precludes anterograde catheterization. A series of patients with wide-necked basilar tip aneurysms treated with a single stent placed via the posterior communicating artery from PCA to PCA is presented.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A retrospective database review was performed to identify all stent-coiled basilar tip aneurysms. Patients with attempted horizontal P1\u2013P1 stenting via the posterior communicating artery were identified. Procedural imaging, follow-up angiography and clinical notes were reviewed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>P1\u2013P1 stenting was attempted in 10 patients and was successful in eight. Angiographic follow-up was available in six patients, all of whom had &gt;90% obliteration at last follow-up. There was one procedure-related subarachnoid hemorrhage that resulted in patient death. There were no cases of significant PCA stenosis on angiographic follow-up.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>This stenting technique is an effective way to treat wide-necked basilar tip aneurysms but is limited by the anatomy of the posterior communicating arteries and P1 segments.<\/jats:p><\/jats:sec>","DOI":"10.1136\/neurintsurg-2012-010301","type":"journal-article","created":{"date-parts":[[2012,3,28]],"date-time":"2012-03-28T00:47:44Z","timestamp":1332895664000},"page":"212-216","source":"Crossref","is-referenced-by-count":29,"title":["Treatment of basilar tip aneurysms with horizontal PCA to PCA stent-assisted coiling: case series"],"prefix":"10.1136","volume":"5","author":[{"given":"Spiros 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