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Fattori Rossella - - 2010
Although the long-term durability of stent grafts is still a concern, stent-graft treatment is already the best option in a large number of patients with descending thoracic aortic diseases who are poor candidates for surgical repair, or in an acute setting. With improved capability to recognize proper anatomy and select ...
Parodi Guido - - 2010
Delayed or incomplete stent endothelisation and stent malapposition may predispose to DES thrombosis that can be a catastrophic event in the left main coronary artery (LMCA). OCT can accurately identify stent struts and arterial tissue, but is limited by the need of vessel blood clearance and penetration; also no data ...
Kim Yong-Hyun - - 2010
Despite its low incidence, stent thrombosis (ST) is one of the most dreaded complications of percutaneous coronary intervention. Endeavor (Medtronics Europe SA) is a new zotarolimus-eluting stent (ZES) with a favorable safety profile that was reported in early and ongoing trials. However, few lethal stent thromboses related to this new ...
Ghazi Payam - - 2010
We describe a case of native coarctation of aorta managed with three self-expandable nitinol stents. After balloon pre-dilation, the first and second stents were dislodged. The coarcted area was successfully treated with the third stent overlapped with the previous stents. During follow up (30 months), the patient was free of ...
Teramoto Tomohiko - - 2010
Although peri-strut low-intensity area (PLIA) is frequently observed on post-stenting optical coherence tomography (OCT) images, the histology associated with PLIA is undocumented. The 36 porcine coronary lesions treated with bare-metal (BMS: n=16) or drug-eluting (DES: n=20) stents were assessed by OCT and histology at 28 days. DES showed a significantly ...
Yang Peng-Fei - - 2010
The Cordis Enterprise stent (Cordis Corporation; Miami, FL, USA), is a novel self-expanding, closed-cell, retractable stent with a low profile, good navigability and flexibility, which has been recently introduced into China. We retrospectively analyzed the clinical data of 84 consecutive patients who presented to our institution from December 2008 to ...
Juszkat Robert - - 2011
To describe a technique for the preservation of the left common carotid artery (CCA) in zone 2 endovascular repair of thoracic aortic aneurysm. This technique involves the placement of a guide wire into the left CCA via the right brachial artery before stent graft deployment to enable precise visualization and ...
Kondo Yuka - - 2010
PURPOSE: The purpose of this study was to evaluate the technical and mid-term results of primary stent placement for chronic total occlusions (CTO) of the iliac artery, in comparison to stent placement for iliac artery stenosis. METHODS: A retrospective study was carried out on 114 consecutive limbs with 24 CTOs ...
Abi-Jaoudeh Nadine - - 2010
To determine the feasibility of electromagnetic tracking as a method to augment conventional imaging guidance for the safe delivery, precise positioning, and accurate deployment of thoracic aortic endografts. Custom guide wires were fabricated, and the delivery catheters for thoracic aortic endoprostheses were retrofitted with integrated electromagnetic coil sensors to enable ...
Lubicz B - - 2010
INTRODUCTION: The Solitaire stent is the first fully retractable stent for endovascular treatment (EVT) of intracranial aneurysms. The aim of this study was to evaluate its use in a prospective series with mid-term follow-up. METHODS: A retrospective review of our prospectively maintained database identified all patients treated with a Solitaire ...
Hsiung Ming C - - 2010
Endovascular stent grafts have become increasingly used in the management of arterial trauma, chronic vascular occlusive diseases, and deep vein thrombosis (DVT). Here, we describe a case of stent migration to the right heart due to a motor vehicle accident in a patient with iliac venous stent implanted for venous ...
Ahn Moonsang - - 2010
We report on N-butyl 2-cyanoacrylate embolization and subsequent endovascular stent graft placement for the treatment of an aortoesophageal fistula secondary to placement of an esophageal stent. A 53-year-old man with lung cancer was admitted with massive hematemesis due to the formation of an aortoesophageal fistula 20 days after esophageal stent ...
Luo Junsheng - - 2010
BACKGROUND: Currently available stents for intracranial use usually are Neuroform (Boston Scientific/Target, Fremont, CA) and Leo (Balt, Montmorency, France) stents. We present the results of our initial experience in using the Leo stent to treat patients with wide-necked cerebral aneurysms. METHODS: Fifteen consecutive patients with wide-necked intracranial aneurysm were treated ...
Cohen José E - - 2010
BACKGROUND AND PURPOSE: Internal carotid artery dissections (ICADs) with occlusion present with a high morbidity and mortality. No specific medical treatment has proven to be effective in this setting. In selected cases of ICAD with occlusion, stent-assisted angioplasty has been shown to be effective in restoring the perfusion. Spontaneous ICAD ...
Iancu Adrian - - 2010
BACKGROUND: Carotid artery stenting (CAS) is a reasonable alternative to carotid endarterectomy, especially in patients at high risk for surgery. Carotid stent thrombosis can cause thrombembolic events, but fortunately, it is a very rare complication. We present two cases of carotid stent thrombosis and their long-term follow-up. CASE REPORTS: One ...
Tse Leonard W H - - 2010
PURPOSE: To evaluate the ability to create in vivo antegrade fenestrations (IVAF) using a radiofrequency probe in juxtarenal aortic stent-grafts to preserve the patency of renal arteries. METHODS: Modified stent-grafts with an unsupported fenestration area were deployed in the juxtarenal aorta of 2 25-kg dogs. Prior to deployment, both renal ...
Zhu Yue-Qi - - 2010
We designed a carotid siphon (CS) aneurysm model in dogs to test a new stent graft (the Willis covered stent) and compared tissue reaction over 12-month follow-up versus a comparison group with stents implanted in straight vessels. Twenty-four saccular sidewall aneurysms (group A) and 12 CS aneurysms (group B) were ...
Fu Wenyu - - 2010
There is still a considerable lack of quantitative information concerning the effects of stent structures on blood flow in an aneurismal cavity. In this paper, five virtual stents with different structures and wire cross-sections were designed for incorporation into the same patient-specific aneurysm model. Computational fluid dynamics simulations were performed ...
Santos Maria C - - 2011
Stent thrombosis and in-stent restenosis remain significant issues in post-coronary angioplasty care despite advances in anti-platelet therapy and stent technology. Angiographic predictors of stent failure have been proposed, but its precise mechanism has been difficult to elucidate on conventional coronary angiography and intravascular ultrasound due to the low resolution of ...
Ybarra Luiz Fernando - - 2011
Coronary angiography can lead to different kinds of complications. Catheter-induced coronary dissection is one of the most feared of them. It is uncommonly reported and may result in ischemic events ranging from angina to death. We report a case of a woman admitted to the hospital due to progressive effort ...
Lee Pyng - - 2010
Stents are used for palliation of symptoms of central airway obstruction caused by either malignant or benign conditions. Stents may be applied for maintaining airway patency after dilatation of postinflammatory and infectious strictures, for airway dehiscence after lung transplantation, and for the management of tracheobronchomalacia. Fistulas between trachea or bronchi ...
Palombo G - - 2010
Cerebral embolization is still a major concern in patients undergoing transfemoral carotid artery stenting. Intraoperative transcranial Doppler (TCD) monitoring and diffusion-weighted magnetic resonance imaging (DW-MRI), two techniques currently used to study this phenomenon, have provided data suggesting the importance of aortic arch catheterization in determining the overall embolic load observed ...
Sabi Titus Mbah - - 2010
BACKGROUND: The surgical creation of an aortopulmonary shunt is an important tool in the therapy of complex congenital heart defects. We report on a transcatheter approach to establish an aortopulmonary shunt in piglets. MATERIAL, METHODS AND RESULTS: In 10 piglets with a median body weight of 10.5 kg (8-12 kg), ...
Gibbs Jerry M - - 2010
Vascular disease involving the superficial femoral artery (SFA) is common. Once the decision to treat the SFA is made, the benefits and limitations of angioplasty and stents must be applied to each specific patient. Additionally, the potential role of covered stents as well as drug eluting stents must be considered.
Kerl J Matthias - - 2010
OBJECTIVE: The purpose of this study was to assess the accuracy of 64-MDCT in the visualization of different coronary artery stents and in the appraisal of in-stent stenosis. MATERIALS AND METhODS: Five different coronary stent types with three diameters (2.5, 3.0, and 4.0 mm) were analyzed using anthropomorphic dynamic cardiac ...
Perrio Stephen - - 2010
The objectives of this study were to compare the 1-year patency of superficial femoral artery (SFA) stent placement with percutaneous transluminal angioplasty (PTA) alone and to attempt to define the role of stents in arterial occlusive disease. Literature searches of the Embase, Medline, and Cochrane databases identified relevant articles, which ...
Yang Soon Chao - - 2010
We report a case of successful transfemoral retrieval of a dislodged and mechanically distorted coronary stent from the right coronary artery in a middle age woman. The distorted stent was recovered via upsizing of her femoral arterial sheath and the use of a microsnare. The procedure was further complicated by ...
Zegdi Rachid - - 2010
BACKGROUND: Stent deployment within stenotic native aortic valves has been shown to depend on valve anatomy (presence of bicuspid valve or not). This study investigated the influence of stent stiffness on stent expansion. METHODS: The study included 88 patients with severe aortic stenosis, and 36 (41%) had bicuspid aortic valves. ...
Turk Marvee - - 2010
BACKGROUND: There have been reports of serious complications related to difficulty removing the deflated Taxus stent delivery balloon after stent deployment. The purpose of this study was to determine whether the Taxus SIBS polymer was "sticky" and associated with an increase in the force required to remove the stent delivery ...
Kulcsár Zsolt Z Neurointerventional Division, Geneva University Hospital, Geneva, Switzerland, - - 2010
Major cerebral thromboembolism often resists recanalization with currently available techniques. The authors present their initial experience with a self-expanding stent for use in intracranial vascular reconstruction, permitting immediate recanalization of acute thromboembolic occlusions of the anterior circulation. Patients treated with the Cordis Enterprise™ self-expanding intracranial stent system for acute thromboembolic ...
Chung Sun Young - - 2010
To evaluate our early experience using self-expanding stents to treat atherosclerotic vertebral artery ostial stenosis (VAOS), with respect to technical feasibility and clinical and imaging follow-up results. A total of 20 lesions in 20 patients underwent stenting of the VAOS using a self-expanding stent (Precise RX; Cordis Neurovascular, Miami Lakes, ...
Barrier Pierre - - 2010
Although percutaneous transluminal renal angioplasty (PTRA) is associated with excellent results in medial fibromuscular dysplasia (FMD), the clinical and technical outcome in the less common nonmedial subtype of FMD is not clearly known. Angiographic PTRA results and clinical follow-up were documented, to report technical and clinical results in 30 patients ...
Tsetis Dimitrios - - 2010
Endovascular repair of femoral arterial access complications is nowadays the treatment of choice in a group of patients who cannot tolerate vascular reconstruction and bleeding due to advanced cardiovascular disease. Endovascular procedures can be performed under local anesthesia, are well tolerated by the patient, and are associated with a short ...
Bruckheimer Elchanan - - 2010
OBJECTIVES: To report on the early results of treatment of coarctation of the aorta by dilation with a new polytetrafluoroethylene covered stent. BACKGROUND: Transcatheter dilation of aortic coarctation carries the risk of aneurysm or rupture. Covered stent implantation reduces this risk but requires a large delivery system. The Advanta V12 ...
Gastaldi Dario - - 2010
The most common approach to treat atherosclerosis in coronary bifurcations is the provisional side-branch (PSB) stenting, which consists sequentially of the insertion of a stent in the main branch (MB) of the bifurcation and a dilatation of the side branch (SB) passing through the struts of the stent at the ...
Gaughen J R JR - - 2010
BACKGROUND AND PURPOSE: Blister aneurysms of the supraclinoid ICA represent a rare but well-documented cause of subarachnoid hemorrhage. These aneurysms are difficult to detect, and their surgical treatment is challenging, with high morbidity and mortality rates. The reports currently in the literature that describe the surgical and endovascular treatment of ...
Anand Girija - - 2011
Migration of superior vena cava (SVC) stents is a well-recognised complication of their deployment, and numerous strategies exist for their retrieval. To our knowledge, only three cases of migration of an SVC stent to the pulmonary vasculature have previously been reported. None of these patients developed complications that resulted in ...
Hyvelin Jean-Marc - - 2010
The introduction of drug-eluting stents (DES) has largely added benefit to the percutaneous coronary intervention. Questions about the long-term safety of DES have been raised, however, particularly with respect to late stent thrombosis. Research efforts are now being directed toward therapeutics that can impede smooth muscle proliferation and promote vascular ...
Yokouchi Yuki - - 2010
The patient was a 40-year-old Japanese woman. At 37 years of age she underwent stent implantation in LAD#7 for an acute myocardial infarction. Subsequently, coronary intervention was performed four times because of occlusion of the stent. Sudden death occurred at 40 years of age due to ventricular tachycardia. Clinically, the ...
Patel R A G - - 2010
Patient selection and a thorough understanding of the technical aspects of percutaneous transluminal renal artery stent placement (PTRS) are paramount to obtaining optimal outcomes. The purpose of this paper is to review renal artery angiography and stent placement techniques. Tips and tricks for successful procedural outcome are described. The potential ...
Chung Sang-Hoon - - 2010
PURPOSE: To determine factors affecting the ability of 64-multislice computed tomography (MSCT) to detect, assess, and accurately diagnose significant coronary arterial in-stent restenosis (ISR). MATERIALS AND METHODS: The institutional review board approved this study and waived informed consent. Sixty patients underwent CT coronary angiography using 64-MSCT, after implantation of coronary ...
Gordon Brent M - - 2010
Atrium expanded polytetrafluoroethylene covered stents were implanted in the stenotic pulmonary veins (n = 5) of three patients. Use of this device was feasible in infants and the procedure was well-tolerated without major complications. The majority (4/5) of covered stents remained patent for at least 3 months after implantation. Stents ...
Peeters P - - 2010
Several limitations inherent to the implantation of a metallic device, such as the occurrence of in-stent re-stenosis, in an arterial lumen intuitively explain the interest for developing bio-absorbable stents. Two main types of bio-absorbable stents currently exist: polymer stents and metallic stents. To date, no studies with bio-absorbable stents have ...
Hussain Farrukh - - 2010
Coronary stent dislodgement and loss carries significant morbidity and risk of infarction and thrombosis if left untreated. There have been multiple previous techniques for stent retrieval or deployment after stent loss including wire braiding, distal small balloon retrieval technique, snare use, forceps in large vessels and the stent crush technique. ...
Roguin Ariel - - 2010
BACKGROUND: The majority of procedural training especially in interventional cardiology, still occurs on patients with direct mentoring by experienced physicians during an actual clinical procedure. In recent years there is an increase use of simulators especially for carotid artery stenting. However, most simulators use "generic" predefined cases. METHODS AND RESULT: ...
Ghandehari Kavian - - 2010
Angioplasty and stenting of the cervicocerebral arteries is a novel treatment for atherosclerotic stenosis, which has periprocedural complications. Data were collected prospectively from 2007 to 2009 in a multicenter cohort of patients undergoing interventions for cervicocerebral stenosis. Retrospective assessment of the 2003-2006 archives of the same interventionists and a review ...
Burzotta Francesco - - 2010
AIMS: Provisional stenting with drug-eluting-stents is actually adopted to treat most of bifurcated lesions. A major drawback of this technique is the risk of side-branch (SB) closure after main vessel (MV) stenting. METHODS AND RESULTS: We set-up, and bench tested, a novel technique for SB protection based on the placement ...
Formichi Maxime - - 2010
To evaluate videoscopic ultrasonography (VUS) as a guiding method for endovascular aortic stent placement. Eight pigs were prepared for a videoscopic approach to the abdominal aorta. Through the trocarts, a VUS probe was placed in contact with the infrarenal aorta and iliacs. In the first 4 animals, a standard surgical ...
Canan Timothy - - 2010
Stent fracture has been observed in noncoronary vessels, especially in the superficial femoral and popliteal arteries and with bare metal stents in saphenous vein grafts of coronary arteries. Since the introduction of drug-eluting stents, stent fractures have also been reported in small studies and case reports. We reviewed these publications ...
Catakoglu Alp Burak - - 2010
AIMS: We report a new stenting technique which was employed in 12 patients to treat coronary bifurcation lesions. METHODS AND RESULTS: A stent is positioned in the main vessel together with a balloon in the side branch, which is positioned slightly proximal to the main vessel stent that also has ...
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