Safety and Functionality of a Guidewire Fixator [Elektronisk resurs]Clinical Investigation of a New Endovascular Tool

E-artikel/E-kapitelEngelska2018

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LIPPINCOTT WILLIAMS & WILKINS2018

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LIBRIS-ID:22701378
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-351769uri
urn:nbn:se:uu:diva-351769urn
10.1097/IMI.0000000000000468doi

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Språk:engelska

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Published
VINNOVA [2012-00374]
gratis
Objective: A new endovascular tool, the Liungman Guidewire Fixator, has been developed to simplify endovascular treatment in complex aortic aneurysms. The device has been extensively tested in bench models and animal trials. To verify the safety and functionality demonstrated in the porcine model, the device was tested in ten patients undergoing endovascular aortic repair (EVAR) or fenestrated endovascular aortic repair (f-EVAR) treatment for abdominal aortic aneurysm. Methods: The Liungman Guidewire Fixator consists of a braided stent-like, cylindrical structure with conical ends and a central channel for a 0.035 '' guidewire. When in use, it is slid along the guidewire and positioned in the target artery, where the Liungman Guidewire Fixator interacts with the arterial wall by anchoring the guidewire to the wall through a radial force. The Liungman Guidewire Fixator allows for uninterrupted blood flow passed the point of fixation. In this study, the Liungman Guidewire Fixator was tested in ten patients undergoing EVAR or f-EVAR treatment for abdominal aortic aneurysm. The device was deployed and retrieved crossover into the hypogastric artery, and the occurrence of thrombotic occlusion, arterial dissection, and vascular rupture or trauma was studied using angiography, as well as device ability to withstand guidewire tension. Results: There were no instances of occlusion, dissection, or vascular trauma detected using angiography. In all cases, deployment and retrieval were successful, and the devices could withstand an applied tension of 3 N. In one instance, retrieval was challenging because of significant tortuosity, which was resolved by a coaxial catheterization. Conclusions: Deployment was uneventful in all ten patients. Retrieval according to the intended instruction for use was performed in nine of the patients. In one patient, a coaxial catheterization was necessary. All devices withstood a retention force of 3 N.

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Mani, Kevin1975- (författare)
Wanhainen, Anders (författare)
Bosaeus, Linus (författare)
Lachat, Mario (författare)
Uppsala universitetMedicinska och farmaceutiska vetenskapsområdet (utgivare)
Uppsala universitetMedicinska och farmaceutiska vetenskapsområdet (utgivare)

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Del av/supplement till:channel record
Ingår i:VärdpublikationInnovations (Philadelphia)13:1, 51-531556-9845

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331375 (Mani, Kevin 1975- aut)

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