Search Results
Results 301 - 350 of 2918
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Asif Arif - - 2009
Arterial stenoses in patients with arteriovenous dialysis access can create a variety of problems including access dysfunction, thrombosis, and hand ischemia. While percutaneous balloon angioplasty is largely successful in the management of arterial stenoses, elastic recoil can present a real predicament to this treatment. In this report, we present two ...
Ngow Harris - - 2009
Coronary artery stent dislodgement during angioplasty is a rare complication. Stent dislodgement was more frequent in the past when stents were manually crimped onto the balloon. Newer and improved balloon-mounted stents with better radio-opacity have reduced the incidence of stent dislodgement but do not completely eliminate it. We report a ...
Brar Somjot S - - 2009
AIMS: We sought to determine if outcomes differ between provisional (elective side branch stenting) compared to a routine two-stent strategy (mandatory side branch stenting) for the treatment of bifurcation stenoses of the coronary arteries using drug-eluting stents. METHODS AND RESULTS: We searched Medline, EMBASE, and the Cochrane library from January ...
Hashim Abdelazim - - 2009
Hepatic artery aneurysm (HAA) is rare with reported incidence of 0.02%. It accounts for approximately 12-20% of all visceral aneurysms. The reported risk of rupture ranges from 14% to 80% of all HAAs. Traditionally, HAA has been treated surgically or by transcatheter coil embolization. There are few published reports of ...
Oderich Gustavo S - - 2009
Patients with aneurysms with short or angulated necks and those with involvement of the renal, visceral, and hypogastric arteries may not be candidates for endovascular treatment using infrarenal stent graft. Fenestrated stent grafts with reinforced fenestrations permit the incorporation of the visceral and renal arteries into the endovascular repair enabling ...
Silbiger Jeffrey J - - 2009
A 55-year-old female with a history of rheumatic mitral stenosis and coronary artery disease underwent a transesophageal echocardiographic examination to assess the feasibility of performing balloon mitral valvuloplasty. During the examination, an unusual echodensity was incidentally discovered in the right sinus of Valsalva which represented a coronary artery stent. Transesophageal ...
Min Sun-Yang - - 2009
Late complications of drug-eluting stent, such as stent malapposition or aneurysm formation have emerged major concern. However, there is no available standard therapeutic guideline about them because the clinical course of those is variable and long-term follow- up data is not sufficient. A case presented here is acute ST-elevation myocardial ...
Takigawa Tomoji - - 2009
A 70-year-old male presented with transient ischemic attacks manifesting as right hemiparesis and motor aphasia due to severe left cervical internal carotid artery stenosis. Carotid artery stenting (CAS) using a flow-reversal system was performed without complications. However, the patient exhibited transient right hemiparesis and motor aphasia 10 days after CAS. ...
Choi Ran - - 2009
A 10-year-old male Korean domestic short-haired cat was presented with refractory lower urinary tract obstruction. The cat was treated by urethral stent placement using a self-expanding nitinol intraluminal stent (Zilver 535 biliary stents, COOK, U.S.A.) subsequent with balloon expansion. Although the cat showed 2 days of transient hematuria after the ...
Jim??nez-Valero Santiago - - 2009
Very late drug-eluting stent (DES) thrombosis is a rare but potentially life-threatening event that has become a major cause of concern. Delayed arterial healing with incomplete endothelialization is probably a pivotal factor related with DES thrombosis. Optical coherence tomography (OCT) is a new high-resolution intracoronary imaging technique that allows detailed ...
Kim Hong-Ki - - 2009
We describe our clinical experiences and outcomes in patients who had thromboembolic complications occurring during endovascular treatment of intracerebral aneurysms with a review of the literature. The types of thromboembolic complications were divided and the treatment modalities for each type were described. Between August 2004 and March 2009 we performed ...
Rivolta Nicola - - 2010
We present the case of a late superficial femoral artery stent disconnection causing an asymptomatic pseudoaneurysm successfully treated with a stent-graft. A 67-year-old female was referred to our department for evaluation of claudication of the left lower limb and was diagnosed to have a total occlusion of the superficial femoral ...
Nolz Richard - - 2010
This article reports the results of carotid artery stenting during an 11-year period. Data from 168 carotid artery stenting procedures (symptomatic, n = 55; asymptomatic, n = 101; symptoms not accessible, n = 12) were retrospectively collected. Primary technical success rate, neurological events in-hospital, access-site complications, and contrast-induced nephropathy (n ...
Nicholls Marcus John - - 2010
Following complicated aortic aneurysm surgery a complete left iliac occlusion resulted in buttock claudication. A retrogradely perfused right common iliac aneurysm expanded. Exclusion was by external-to-internal iliac stent-graft. No deterioration in claudication occurred with medium-term stent-graft patency.
Liu Chang-Wei - - 2009
This study evaluated the feasibility, efficacy, and outcome of endovascular therapy combined with immunosuppressive therapy for aortic pseudoaneurysms in patients with Behçet disease. Between April 2002 and April 2008, 12 pseudoaneurysms (9 involving the intrarenal abdominal aorta, 1 at the suprarenal level, and 2 in the supraceliac aorta) in nine ...
Ferreira Marcelo - - 2009
PURPOSE:To present a means of occluding an unneeded side branch during deployment of custom-made branched stent-grafts for thoracoabdominal aortic aneurysm (TAAA) repair. TECHNIQUE:When a side branch on a customized TAAA branched stent-graft is not needed, an oversized Amplatzer Vascular Plug II can be deployed inside the side branch after the ...
Hameed Aamir - - 2009
The favored technique of peripheral subintimal angioplasty is to stent the subintimal channel, which usually requires long stents. However, there are no randomized trials comparing subintimal angioplasty with and without stenting. Our hypothesis is that after subintimal angioplasty, a newly created conduit should not be stented and stenting should only ...
Zipfel Burkhart - - 2009
BACKGROUND: Safe fixation of endovascular stent grafts in thoracic aortic disease often requires covering of the left subclavian artery (LSA) with the stent graft. It is controversial whether this occlusion can be done without additional risk of ischemic complications. METHODS: In 102 patients treated with endovascular stent grafts, the LSA ...
Sato Sachiko - - 2009
This study aimed to evaluate whether drug coating of the recently developed covered SENDAI stents--self-expandable stents covered with segmented polyurethane (SPU) films--reduces neointimal thickening in animal model. FK506, which is one of the most effective immunosuppressants, was used. Bare stents; non-coated, covered stents; and FK506-coated, covered stents were placed bilaterally ...
Pochettino Alberto - - 2009
BACKGROUND: Acute DeBakey I dissection repair consists of ascending aortic resection, aortic root repair or replacement, and variable aortic arch replacement. This "proximal" strategy leaves most patients with a patent residual "type B" dissection which leads to greater than 30% distal "open" reoperations for dissecting aneurysm. This report tests whether ...
Trani Carlo - - 2009
Proximal embolic protection devices (PPDs) are increasingly used during carotid artery stenting (CAS) due to the theoretical advantage of cerebral protection during the entire procedure. Transradial approach reduces access site vascular complications and can be useful for CAS in patients at high bleeding risk, with contraindications for prolonged bed rest ...
Bueno Ronaldo R L - - 2009
OBJECTIVES: We sought to test the efficacy and safety of the implantation of a stent covered with biosynthetic cellulose compared to a conventional bare-metal stent (BMS) in a rabbit iliac artery model. BACKGROUND: Biosynthetic cellulose is a biocompatible film used in several fields of medicine. Stents covered with biosynthetic cellulose ...
Inoue Hironori - - 2009
We report a surgical case of infected thoracic aortic aneurysm. Before arrival of the cryopreserved aortic allograft, the patient had hemoptysis resulting from aneurysm rupture. Therefore endovascular stent grafting was urgently performed three days prior to in situ allograft implantation. Palliative stent grafting prevented circulatory collapse and stabilized the patient ...
Urbach Horst - - 2009
BACKGROUND: Self-expanding microstents are typically placed before a wide-necked aneurysm is filled with coils. Alternatively, the stent may be placed at the end of the procedure, when the coil mass blocks or slows down the flow in the parent artery or a branching vessel. PATIENTS AND METHODS: Between March 2007 ...
Uberoi Raman - - 2009
The objective of this study was to audit current practice in iliac artery intervention in the United Kingdom. In 2001 the British Society of Interventional Radiology Iliac Artery Angioplasty-Stent (BIAS) III registry provided the first national database for iliac intervention. It recommended that data collection needed to continue in order ...
Atoui Rony - - 2009
In this current 'stent era', cardiac surgeons are faced with a rapidly increasing number of patients in whom previous percutaneous coronary interventions (PCIs) have been performed before they are finally referred for coronary artery bypass surgery. We herein describe a technique of surgical revascularization in two patients with diffusely diseased ...
Canaud Ludovic - - 2010
OBJECTIVE: Our objective was to assess potential causative factors of stent-graft collapse after thoracic endovascular aortic repair. METHODS: We retrospectively reviewed clinical data and preoperative and postoperative computed tomographic scans of patients with thoracic stent-graft collapse in 2 French departments of vascular surgery. Aortic arch angulation, length of the lack ...
Meijer F J A FJ Department of Radiology, University Medical Center St. Radboud, Nijmegen, The Netherlands - - - 2009
This article discusses some considerations concerning covered stent placement in a patient with a traumatic direct carotid-cavernous fistula. Our case supports recent reports in the literature that covered stent placement can be an acceptable alternative when detachable balloon occlusion or coil occlusion of a direct carotid-cavernous fistula fails or cannot ...
León Luis R LR - - 2009
A 78 year-old male with multiple serious medical comorbidities was diagnosed with a pseudoaneurysm of the proximal superficial femoral artery. He had undergone successful superficial femoral artery (SFA) stenting for limb salvage four months previously and a Duplex ultrasound had confirmed adequacy of the endovascular procedure two months after its ...
Wajnberg Eduardo - - 2009
BACKGROUND: Stent-assisted coiling is an accepted endovascular treatment (EVT) for wide-necked intracranial aneurysms. The Neuroform stent (Target Therapeutics, Fremont, Calif) is a flexible nitinol self-expandable stent that was designed to potentially overcome the limitations of balloon expandable coronary stents in the intracranial circulation. The aim of this study was to ...
Park Young Seok - - 2009
BACKGROUND: An internal carotid artery (ICA) injury is an uncommon but potentially fatal complication of transsphenoidal surgery. CASE DESCRIPTION: We report a 61-year-old male patient with a right cavernous ICA injury sustained during transsphenoidal surgery and who underwent endovascular Stent graft placement. The ICA trapping was not indicated because of ...
Gong Feirong - - 2010
We have synthesized heparin-immobilized copolymers of L-lactide (LA) and 5-methyl-5-benzyloxycarbonate-1,3-dioxan-2-one (MBC) as non-inflammatory and non-thrombogenic biodegradable coating materials. These copolymers were used in fabricating arsenic trioxide (As(2)O(3))-eluting stents to reduce the late-stage adverse events, such as thrombosis, localized hypersensitivity and inflammation, that occur when applying stents to treat coronary artery ...
Malik Rajesh K - - 2009
Significant technical advances have made carotid artery stenting an option for high-risk patients. These advances bring forth new challenges that must be overcome. Preprocedural planning is essential for optimal outcome for every patient given the high risk for significant neurologic complications. In this article we describe a standard approach for ...
Silva João Carlos - - 2009
The treatment of coronary aneurysm (CA) is controversial. Some authors recommend medical treatment, while others favor surgery. Recently, coronary stenting has played an increasingly important role in the treatment of CA. We report a case of a 70-year-old male admitted to our hospital with an acute myocardial infarction of undetermined ...
Bruckheimer Elchanan - - 2009
OBJECTIVES: To report on the early results of treatment of native coarctation of the aorta by implantation and serial dilations of covered stents. BACKGROUND: Transcatheter dilation of native coarctation of the aorta carries a risk of aneurysm or rupture. Covered stent implantation requires a large delivery system with the risk ...
Lima Sónia - - 2009
Late complications from vascular closure devices, such as puncture site stenosis, are not well documented. They may be of clinical significance and probably share the same mechanism that underlies intra-coronary stent restenosis. Thus, treatment approaches based on balloon angioplasty alone may not be sufficient, and the use of stents (when ...
Prasad Sandhir B - - 2009
Late stent thrombosis has emerged as an infrequent but serious complication of drug-eluting stent (DES) implantation. Premature cessation of dual antiplatelet therapy is the most common risk factor for its occurrence. In the era of multivessel stenting with DES, there is a potential for multivessel late stent thrombosis following cessation ...
Lurz Philipp - - 2009
The field of percutaneous valvular interventions is one of the most exciting and rapidly developing within interventional cardiology. Percutaneous pulmonary valve implantation (PPVI) represents the first in-human application of these techniques and is a nonsurgical option for treating right ventricular outflow tract/pulmonary trunk dysfunction. With the growing numbers of patients ...
Suh Sang Hyun - - 2009
OBJECT: A ruptured dissecting aneurysm of the vertebrobasilar artery (VBA-DA) is a well-known cause of acute subarachnoid hemorrhage (SAH) with a high rate of early rebleeding. Internal trapping of the parent artery, including the dissected segment, is one of the most reliable techniques to prevent rebleeding. However, for a ruptured ...
Tateshima Satoshi - - 2009
OBJECT: Development of a flexible self-expanding stent system and stent-assisted coiling technique facilitates endovascular treatment of wide-necked brain aneurysms. The hemodynamic effect of self-expandable stent placement across the neck of a brain aneurysm has not been well documented in patient-specific aneurysm models. METHODS: Three patient-specific silicone aneurysm models based on ...
Patnaik Amar N - - 2009
BACKGROUND: The role of balloon-expandable stents for native coarctation has been proven in several small studies. Use of Nitinol-made self-expanding stents in such situations is reported in adults in only a few cases. For the last 5 years we used self expanding nitinol stents (primarily recommended for iliac angioplasty in ...
Jain Ajay - - 2009
Embolization of athero-thrombotic material during primary percutaneous coronary intervention is a common cause of periprocedural complication. Methods developed to reduce embolization include thrombus aspiration, and distal protection. We report five cases of primary percutaneous intervention to coronary arteries that contain large amounts of thrombus, using a novel mesh covered stent. ...
Gewillig Marc - - 2009
Extrinsic compression of the left main coronary artery is a rare and life-threatening complication of endovascular stenting of pulmonary artery conduits. This case report describes fatal myocardial infarction caused by compression of the left main coronary artery due to stent placement in a stenosed right pulmonary artery conduit.
du Toit D F - - 2009
OBJECTIVES: To review a single-centre experience with stent-graft treatment of penetrating carotid artery injuries and long-term follow-up. METHODS: All stable patients with carotid artery injuries presenting between August 1998 and February 2009 were considered for endovascular treatment. Patients were selected based on clinical and radiological criteria and data were prospectively ...
Liu Zhipeng - - 2009
Stent graft endoleak is a major problem in endovascular aneurysm repair (EVAR). Endoleak occurs after EVAR and may lead to aneurysm rupture, acute vessel thrombosis or occlusion. This study presents a novel design to potentially reduce endoleak with use of magnets. A ferromagnetic stent is deployed into the vessel lumen, ...
Guivier-Curien Carine - - 2009
Endovascular aneurysm repair (EVAR) is an attractive alternative to open surgery for treating abdominal aortic aneurysms (AAAs). However, the implantation of stent grafts into AAAs can result in post-operative complications such as stent graft migration, rupture or endoleak. EVAR has therefore been carried out only on selected patients. Stent grafts ...
Ahlhelm Frank - - 2009
We studied the deliverability and safety of a braided, self-expanding, closed-cell nickel-titanium (NiTi) stent (E-volution, Jotec GmbH, Hechingen, Germany) especially designed for the endovascular treatment of carotid artery bifurcation stenosis with special regard to in-stent stenosis and thrombosis compared with a laser-cut reference nitinol stent in a porcine model of ...
Tokuda Takanori - - 2009
We used metal wires and fibers to fabricate a composite knitted stent and then compare the mechanical characteristics of this stent with those of a pure metallic stent of the same construction in order to develop a stent that offers a comparable degree of expandability as metallic stents but can ...
Girn Hardev Ramandeep Singh - - 2009
A patient with a chronic, symptomatic V2 segment vertebrojugular fistula was successfully treated with a vertebral artery stent graft, with immediate tinnitus resolution. No early or late complications were observed, and at 45 months of follow-up, the patient remains asymptomatic with a patent stent graft. The existing literature on stent ...
Gerhards Hans Michael - - 2009
We report a case of successful endovascular treatment of an acute, uncomplicated Stanford type B aortic dissection, sparing the artery of Adamkiewicz. The ECG-gated MSCT diagnosed the reason for the acute chest pain in the patient, and identified the intercostal artery from which the artery of Adamkiewicz originated, thus permitting ...
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