1,720,962 research outputs found
Hybrid treatment option for aortic arch anomalies and descending thoracic aortic aneurysm.
No full textRe-TEVAR for complications after blunt aortic traumatic injury stenting
No full textWe report an endovascular approach that was used to treat two patients with previous thoracic aortic repair or endovascular repair (TEVAR) for blunt thoracic aortic injury. The first patient was a 38-year-old man who presented with distal intragraft thrombosis 24 months after TEVAR. The second patient, a 32-year-old man, developed a symptomatic distal device collapse at 39th month follow-up, associated with buttock claudication. Both patients were offered an endograft relining, complicated in the first case by distal embolizatio
From aortouniiliac bifurcated to aortobisiliac trifurcated endograft for hypogastric artery preservation during EVAR
No full textNovel approach for juxtarenal aortic occlusion treatment: the Y-guidewire configuration for aortic bifurcation reconstruction.
No full textEndovascular treatment of extracranial vertebral artery aneurysm and aberrant right subclavian artery aneurysm.
No full textPercutaneous endovascular aneurysm repair with the ultra-low profile Ovation abdominal stent-graft system.
No full textEndovascular management of total juxtarenal aortic occlusive disease in high-risk patients: technical considerations and clinical outcome
No full textBaCKground: To report our single-center experience in the endovascular treatment of juxtarenal aorto-iliac occlusions.
MeThods: Between december 2008 and december 2012, 13 patients with total juxtarenal aorto-iliac occlusion, considered at high risk for open revascularization, were treated by endovascular means at our department. inclusion criteria were severe intermittent claudication, rest pain and distal tissue loss. antegrade recanalization from percutaneous brachial access and retrograde angioplasty and stenting from percutaneous or surgical femoral accesses were performed. The renal arteries (RAs) were protected using filters or balloons. Aorto-iliac bare-metal stents were deployed in all patients.
resulTs: no death was registered. Technical success was 100%. in 11 patients (84.6%) the ankle-Brachial index increased to 0.9-1. renal arteries were involved in 7 cases (53.8%): 3 chimney stent grafts deployment, 2 aorto-iliac stent fenestrations and 2 aorto-iliac stents placement above the renal arteries without renal function impairment. Complication rate was 38.5%: 2 cases of thrombus dislodgement into the ras, 1 distal artery embolization, 1 common iliac artery rupture and 1 pseudo-aneurysm. all complications were treated percutaneously, except for the distal embolization treated surgically. The patient with iliac artery rupture underwent acute renal insufficiency requiring temporary dialysis after hemorrhagic shock because of retroperitoneal hematoma. Mean follow-up was 18 months (range 6-30 months). The primary and secondary patency was respectively 92.3% and 100%.
ConClusion: endovascular recanalization of juxtarenal aorto-iliac occlusion in selected patients is feasible and safe, with good early and mid-term results and should be considered in high risk patients
Chimney technique for aortic arch pathologies:an 11-year single-center experience.
No full textPurpose: To report our single-center experience with the chimney technique for aortic arch pathologies and the mid- to long-term results in these patients.
Methods: From June 2002 to May 2013, 26 patients (18 men; mean age 71.2 years, 53–86) underwent thoracic endovascular aortic repair (TEVAR) combined with chimney technique. Indications for treatment were: a proximal landing zone ,15 mm long distal to the left subclavian artery (LSA), thoracic aortic aneurysm (n1⁄413), complicated type B aortic dissection (n1⁄410), type I endoleak after previous TEVAR (n1⁄42), and penetrating aortic ulcer (n1⁄41). Treatment was performed in the emergency setting in 7 cases. The 28 chimney stent- grafts (double chimneys in 2 patients) were deployed in the innominate artery (n1⁄47), left common carotid artery (n1⁄410), and LSA (n1⁄411). All patients underwent computed tomography before discharge, at 1, 6, and 12 months, and yearly thereafter.
Results: Technical success was 100%. One (3.8%) perioperative death was due to a cerebral hemorrhage. No major stroke was registered, but 3 (11.5%) minor strokes occurred (all resolved). Paraparesis developed in 2 (7.7%) patients. Median follow-up was 36.8 months (range 1–131), during which an additional 4 (15.4%) patients died, but only 1 death was aneurysm-related. Chimney graft patency was 89.3% (25/28); an asymptomatic fracture was found in a patent chimney stent-graft at the 18-month follow-up. The type I endoleak rate was 23% (n1⁄46); 3 endoleaks associated with aneurysm sac enlargement were treated. Conclusion: The chimney technique for aortic arch pathologies is safe and feasible and may be an option in patients considered at high risk for surgery or who are ineligible for conventional TEVAR, especially in the emergency setting. Concern persists regarding type I endoleak, and long-term follow-up remains mandatory
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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