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Title: Endovascular flow-diversion of visceral and renal artery aneurysms using dual-layer braided nitinol carotid stents.
Austin Authors: van Veenendaal, Penelope;Maingard, Julian T;Kok, Hong Kuan;Ranatunga, Dinesh G ;Buckenham, Tim;Chandra, Ronil V;Lee, Michael J;Brooks, Duncan Mark ;Asadi, Hamed 
Affiliation: Interventional Radiology Unit - Monash Imaging, Monash Health, Melbourne, Australia
Interventional Neuroradiology Unit, Monash Health, Melbourne, Australia
Interventional Neuroradiology Service, Department of Radiology, Austin Health, Heidelberg, Victoria, Australia
Interventional Radiology Service, Department of Radiology, Austin Health, Heidelberg, Victoria, Australia
School of Medicine - Faculty of Health, Deakin University, Waurn Ponds, Australia
Royal College of Surgeons in Ireland, Dublin, Ireland
Interventional Radiology Service - Department of Radiology, Beaumont Hospital, Dublin, Ireland
Department of Imaging, Monash University, Melbourne, Australia
Interventional Radiology Service - Department of Radiology, Northern Hospital, Melbourne, Australia
Monash Hospital, Clayton, Victoria, Australia
Issue Date: Jun-2020 2020-06-28
Publication information: CVIR endovascular 2020; 3(1): 33
Abstract: Visceral and renal artery aneurysms (VRAAs) are uncommon but are associated with a high mortality rate in the event of rupture. Endovascular treatment is now first line in many centres, but preservation of arterial flow may be difficult in unfavourable anatomy including wide necked aneurysms, parent artery tortuosity and proximity to arterial bifurcations. Endovascular stenting, and in particular flow-diversion, is used in neurovascular intervention to treat intracranial aneurysms but is less often utilised in the treatment of VRAAs. The CASPER stent is a low profile dual-layer braided nitinol stent designed for carotid stenting with embolic protection and flow-diversion properties. We report the novel use of the CASPER stent for the treatment of VRAAs. We present a case series describing the treatment of six patients with VRAAs using the CASPER stent. Six patients with unruptured VRAAs were treated electively. There were three splenic artery aneurysms and three renalartery aneurysms. Aneurysms were treated with the CASPER stent, with or without loose aneurysm coil packing or liquid embolic depending on size and morphology. All stents were successfully deployed with no immediate or periprocedural complications. Four aneurysms completely occluded after serial imaging follow up with one case requiring repeat CASPER stenting for complete occlusion. In one patient a single aneurysm remained patent at last follow up, A single case was complicated by delated splenic infarction and surgical splenectomy. Preliminary experience with the CASPER stent suggests it is technically feasible and effective for use in the treatment of VRAAs.
DOI: 10.1186/s42155-020-00125-2
ORCID: 0000-0001-5034-570X
PubMed URL: 32596773
Type: Journal Article
Subjects: Aneurysm
Dual layer
Appears in Collections:Journal articles

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