Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions
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Catheter Cardiovasc Interv · Jun 2015
Long-term outcomes associated with the transaortic approach to transcatheter Aortic valve replacement.
We investigated the long-term safety, efficacy and clinical outcomes associated with transaortic (TAO) transcatheter aortic valve replacement (TAVR) in the United States. ⋯ The outcomes associated with TAO TAVR compare favorably with TAP TAVR. Our results appear to corroborate the long-term safety and efficacy of the TAO approach in TAVR patients with inadequate iliofemoral access.
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Catheter Cardiovasc Interv · May 2015
Case Reports3D printed models for planning endovascular stenting in transverse aortic arch hypoplasia.
To evaluate whether three-dimensional (3D) printed models can be used to improve interventional simulation and planning in patients with aortic arch hypoplasia. ⋯ 3D printed models accurately replicate patients' anatomy and are helpful in planning endovascular stenting in transverse arch hypoplasia. This opens a door for potential simulation applications of 3D models in the field of catheterization and cardiovascular interventions.
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Catheter Cardiovasc Interv · May 2015
Comparative StudyAcute, subacute, and long-term evaluation of a novel endovascular occlusion system in a large animal model.
Endovascular occlusion of blood vessels represents a key component of interventional therapy. While coils are most commonly used, vessel occlusion is generally not achieved immediately and may necessitate a large number of devices. It has been suggested that endovascular plugs may overcome these limitations; however, immediate and durable occlusion remains a challenge with plugs as well. This study evaluates a newly designed endovascular occlusion system (EOS) METHODS: The EOS combines a nitinol coil with an impermeable membranous cap made of expanded polytetrafluoroethylene. The coil offers sufficient radial force to expand the membrane and minimize post-deployment migration. Fifteen test devices were deployed in the iliac (external and internal) and femoral arteries of five miniature swine, while two commercially available devices (platinum coils and a vascular plug) were used as controls in one miniswine. Angiography was performed 1, 5, and 10 minutes after device implantation. Follow-up angiography was obtained either on day 29 or day 61, prior to devices harvesting for histological evaluation and biocompatibility assessment. ⋯ The EOS is a safe and reliable device resulting in immediate and durable vessel occlusion in the peripheral arterial circulation. While no device migration was observed in the pelvic area, it was observed with five test and one control devices in the vicinity of highly mobile articulations, leading to the conclusion that occlusion devices should not be placed within hypermobile areas such as the hip joint.