flow_redirection_endoluminal_device [Neurosurgery Wiki]

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[[Flow diversion]] for [[basilar apex aneurysm]]s has rarely been reported.

A [[retrospective]] [[review]] of [[prospective]]ly maintained [[database]]s at 8 academic [[institution]]s 
(St. Michael's Hospital, [[Toronto]], Beth Israel Deaconess Medical Center, Harvard Medical School, [[Boston]], Massachusetts.Toronto Western Hospital, University of [[Alabama]] at [[Birmingham]],
State University of New York at [[Buffalo]], University of [[Florence]], Italy. [[Toulouse]] University Hospital, Yale School of Medicine, [[New Haven]]), was performed from 2009 to 2016 to identify patients with [[basilar apex aneurysm]]s treated with [[flow diversion]]. Clinical and radiographic data were analyzed.

Sixteen consecutive patients (median age 54.5 yr) underwent 18 [[procedure]]s to treat 16 basilar apex aneurysms with either the [[Pipeline Embolization Device]] ([[Medtronic]]) or [[Flow Redirection Endoluminal Device]] ([[Microvention]]). Five [[aneurysm]]s (31.3%) were treated in the setting of [[subarachnoid hemorrhage]]. Seven aneurysms (43.8%) were treated with flow diversion alone, while 9 (56.2%) underwent flow diversion and adjunctive [[coiling]]. At a median follow-up of 6 mo, complete (100%) and near-complete (90%-99%) occlusion was noted in 11 (68.8%) aneurysms. Incomplete occlusion occurred more commonly in patients treated with flow diversion alone compared to those with adjunctive coiling. Patients with partial occlusion were significantly younger. Retreatment with an additional flow diverter and adjunctive coiling occurred in 2 [[wide necked aneurysm]]s. There was 1 [[mortality]] in a patient (6.3%) who experienced [[posterior cerebral artery]] and cerebellar [[stroke]]s as well as subarachnoid hemorrhage after the placement of a [[flow diverter]]. Minor complications occurred in 2 patients (12.5%).

[[Flow diversion]] for the treatment of [[basilar apex aneurysm]]s results in acceptable occlusion rates in highly selected cases. Both primary flow diversion and rescue after failed clipping or coiling resulted in a [[modified Rankin Scale]] score that was either equal or better than at presentation and the technology represents a viable alternative or adjunctive option
((Dmytriw AA, Adeeb N, Kumar A, Griessenauer CJ, Phan K, Ogilvy CS, Foreman PM, 
Shallwani H, Limbucci N, Mangiafico S, Michelozzi C, Krings T, Pereira VM, Matouk
CC, Zhang Y, Harrigan MR, Shakir HJ, Siddiqui AH, Levy EI, Renieri L, Cognard C, 
Thomas AJ, Marotta TR. Flow Diversion for the Treatment of Basilar Apex
Aneurysms. Neurosurgery. 2018 Dec 1;83(6):1298-1305. doi: 10.1093/neuros/nyx628. 
PubMed PMID: 29529233.
)).