Journal of endovascular therapy : an official journal of the International Society of Endovascular Specialists
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To examine the outcomes following interventions for type II endoleaks in patients with aneurysm sac expansion after endovascular aneurysm repair (EVAR). ⋯ This study demonstrates that most patients require multiple reinterventions to treat type II endoleaks; specifically, lumbar artery embolization carries a low midterm success rate.
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To present midterm outcomes of thoracic endovascular aortic repair (TEVAR) with laser fenestration to revascularize the left subclavian artery (LSA) as an alternative to debranching. ⋯ In situ retrograde laser fenestration is a feasible and effective option for revascularizing the LSA during emergent TEVAR. Longer follow-up is necessary to determine the durability of this technique.
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Comparative Study
A comparative analysis of bench-top performance assessment of distal protection filters in transient flow conditions.
To compare the performance in vitro of 6 distal protection filters (DPFs) on the basis of filtration ability and effects on pressure gradient and vascular impedance in a flow model of the internal carotid artery (ICA). ⋯ A bench-top flow apparatus exhibiting physiologically realistic conditions was developed by combining pulsatile flow and a body temperature blood analog. Using microspheres larger than the pore size of most of the DPFs, the device-wall apposition has an important effect on the overall filter performance and the global fluid dynamics in the flow model.
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Comparative Study
Type II endoleaks after endovascular repair of abdominal aortic aneurysms: fate of the aneurysm sac and neck changes during long-term follow-up.
To evaluate the frequency of type II endoleaks after endovascular aneurysm repair (EVAR) and to compare sac diameter and neck changes in patients with type II endoleak to endoleak-free patients with at least 3-year imaging follow-up. ⋯ Persistent type II endoleaks led to significant aneurysm sac enlargement, but without increased mortality or rupture rates.
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Randomized Controlled Trial
Three-dimensional electromagnetic navigation vs. fluoroscopy for endovascular aneurysm repair: a prospective feasibility study in patients.
To evaluate the in vivo feasibility of a 3-dimensional (3D) electromagnetic (EM) navigation system with electromagnetically-tracked catheters in endovascular aneurysm repair (EVAR). ⋯ A 3D EM navigation system, used in conjunction with fluoroscopy and angiography, has the potential to provide more spatial information and reduce the use of radiation and contrast during endovascular interventions. This pilot study showed that 3D EM navigation is feasible in patients undergoing EVAR. However, a larger study must be performed to determine if 3D EM navigation is better than the existing practice for these patients.