Low-profile Visualized Intraluminal Support device (LVIS Jr) as a novel tool in the treatment of wide-necked intracranial aneurysms: initial experience in 32 cases.
OBJECTIVE
The focus of this study was to determine ease of deployment, safety and effectiveness of the LVIS Jr device.


METHODS
A retrospective analysis was performed of 32 cases comprising 34 aneurysms in which the LVIS Jr device was used for stent-assisted coil embolization of intracranial aneurysms from February to October 2012, including all clinical and angiographic data as well as mid-term follow-up (1-12 months of treatment).


RESULTS
The median age of the patients was 54 years (range 21-76) and 19 (59%) were women. The aneurysms were ruptured in 12/34 cases (35.3%); 26 (76.4%) were located within the anterior circulation and the remaining 8 (23.5%) were located in the posterior circulation. Eleven of the 34 aneurysms (32.3%) were treated with a Y-stent configuration. Immediate total occlusion was observed in 16/34 (47%), near total occlusion (90-95%) in 5/34 (14.7%) and a 'dog ear' or subtotal occlusion in 12/34 (35.2%). A single aneurysm was treated without coil embolization. Complications occurred in 5/34 cases (15%), including two cases of in-stent thrombosis.


CONCLUSIONS
Implantation of the LVIS Jr device as a support device for stent-assisted coil embolization seems to be safe and effective. The LVIS Jr device can also be implanted in a Y-stent configuration, offering a novel technique with a potentially lower risk of thromboembolic complications compared with other devices.
Department of Radiology and Neuroradiology, Klinikum-Vest, Knappschaftskrankenhaus, Recklinghausen, Germany.
Daniel
D
Behme
Department of Radiology and Neuroradiology, Klinikum-Vest, Knappschaftskrankenhaus, Recklinghausen, Germany.
Anushe
A
Weber
Department of Radiology and Neuroradiology, Klinikum-Vest, Knappschaftskrankenhaus, Recklinghausen, Germany.
Annika
A
Kowoll
Department of Radiology and Neuroradiology, Klinikum Augsburg, Augsburg, Germany.
Ansgar
A
Berlis
Microvention-Terumo, Tustin, California, USA.
Thomas H
TH
Burke
Department of Radiology and Neuroradiology, Klinikum-Vest, Knappschaftskrankenhaus, Recklinghausen, Germany Ruhr-University-Bochum, University Medical Center Knappschaftskrankenhaus Langendreer, Bochum, Germany.
Werner
W
Weber
D000328:Adult; D000368:Aged; D021721:Balloon Occlusion / Q000295:instrumentation / Q000379:methods*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012189:Retrospective Studies; D015607:Stents; D016896:Treatment Outcome; D055815:Young Adult