Flow diverter placement for treatment of intracranial aneurysms gained growing consensus in the past years. A major concern among professionals is the side branch coverage which leads in some cases to vessel occlusion. However, the lost vessel patency only infrequently is accompanied by a new onset of neurological deficits secondary to ischaemic lesions. A retrospective analysis of all patients treated with flow diversion at our hospital was aimed to better understand this phenomenon in order to formulate a hypothesis about the causes. We concluded that vessel occlusion occurs due to a reduced blood pressure gradient in those vessels with a strong collateral or anastomotic vascularization that refurnishes the same distal vascular territories. Indeed, we detected no new brain infarction since blood flow was always guaranteed.

Branch vessel occlusion in aneurysm treatment with flow diverter stent / S. Hohenstatt, A. Arrichiello, G. Conte, G. Craparo, F. Caranci, A. Angileri, D. Levi, G. Carrafiello, A. Paolucci. - In: ACTA BIOMEDICA. - ISSN 2531-6745. - 91:10S(2020 Sep 23), pp. e2020003.1-e2020003.9. [10.23750/abm.v91i10-S.10283]

Branch vessel occlusion in aneurysm treatment with flow diverter stent

A. Arrichiello
Secondo
;
G. Conte;A. Angileri;G. Carrafiello;
2020

Abstract

Flow diverter placement for treatment of intracranial aneurysms gained growing consensus in the past years. A major concern among professionals is the side branch coverage which leads in some cases to vessel occlusion. However, the lost vessel patency only infrequently is accompanied by a new onset of neurological deficits secondary to ischaemic lesions. A retrospective analysis of all patients treated with flow diversion at our hospital was aimed to better understand this phenomenon in order to formulate a hypothesis about the causes. We concluded that vessel occlusion occurs due to a reduced blood pressure gradient in those vessels with a strong collateral or anastomotic vascularization that refurnishes the same distal vascular territories. Indeed, we detected no new brain infarction since blood flow was always guaranteed.
Humans; Retrospective Studies; Stents; Treatment Outcome; Embolization, Therapeutic; Intracranial Aneurysm;
Settore MED/37 - Neuroradiologia
23-set-2020
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/917024
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