Search Results
Results 601 - 650 of 2918
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Yilmazkaya Bayram - - 2008
BACKGROUND: In-stent stenosis remains the major disadvantage of coronary interventions. Extensive applications of the intracardiac devices especially involving long segments of coronary arteries have resulted in an increase in the number of cases of in-stent stenosis. That may require aggressive surgical approaches. METHODS: Between June 2006 and October 2007, 7 ...
Akiyama Yasuhiko - - 2008
In-stent stenosis is a possible long-term complication of carotid artery stenting. A simple and safe technique of cutting balloon angioplasty is described for carotid in-stent stenosis. The stented vessel is imaged by three-dimensional (3D) rotational angiography, the acquired projection images are transferred to a workstation, and the stenotic lesion and ...
Holfeld Johannes - - 2008
We report 2 patients who were referred for treatment of hemodynamically significant symptomatic stenosis of the aorta at the thoracoabdominal transition (coral reef aorta) that was causing abdominal angina and intermittent claudication. Both patients underwent successful transfemoral endovascular stent-graft placement and are free of symptoms, with regular findings at 6-month ...
Hussain Farrukh - - 2008
The crush and "mini-crush" techniques have been described previously for complex coronary bifurcation intervention. Typically, the single stent technique, with or without final kissing balloon inflation, has been preferred over the 2-stent method, whenever possible, to minimize stent length or stent overlap. The multiple 2-stent techniques need to be utilized, ...
Hoit Daniel A - - 2008
OBJECTIVE: Endovascular stent graft (SG) deployment offers a useful vessel-preserving strategy for vascular wall lesions such as pseudoaneurysms and fistulae. Although deployment of expanded polytetrafluoro-ethylene-covered SGs within the carotid and vertebral arteries is technically feasible, data on long-term efficacy, safety, and patency rate remain sparse. METHODS: Six patients with traumatic ...
Kotsar Andres - - 2008
PURPOSE: The biodegradable PLGA (a copolymer of L-lactide and glycolide) urethral stent with a spiral configuration has been used clinically for the prevention of postoperative urinary retention after different types of thermal therapy for benign prostatic hyperplasia. A new braiding pattern for this stent has recently been developed by our ...
Stefanadis Christodoulos - - 2008
The detection of atheromatous lesions in patients with coronary artery disease is related to neovascularisation, since it is associated with the presence of a dense network of vasa vasorum in the vascular wall. The increased density of vasa vasorum causes destabilisation of the atheromatous plaque. The safety and efficacy of ...
Mayer Thomas E - - 2009
The purpose of this study was to shorten and simplify the procedure of filter retrieval after carotid stenting with cerebral protecting devices. We propose a retrieval method with a soft-tip guiding catheter, which eliminates the step of balloon exchange and introduction of a retriever catheter for the protection filter. The ...
Shimamoto Takeshi - - 2009
Crawford type II thoracoabdominal aortic aneurysm (TAAA) secondary to chronic dissection was successfully treated with hybrid therapy comprising surgical visceral reconstruction and dual Inoue stent graft implantation. The proximal single-branched Inoue stent graft effectively sealed the entry located near the left subclavian artery and simultaneously excluded the TAAA, while the ...
Peluso J P P - - 2008
BACKGROUND AND PURPOSE: Stent systems for intracranial use are continuously improved. We report our initial experience using a new self-expanding easy-to-place nitinol stent (Enterprise) in the treatment of wide-neck intracranial aneurysms. MATERIALS AND METHODS: Between January and October 2007, 16 aneurysms in 15 patients were treated with stent assistance. Aneurysm ...
Haskal Ziv J - - 2008
Catheter-directed therapies in chronic deep vein thromboses can help improve leg function by mechanically addressing residual obstruction in lower extremity or pelvic veins, although the reported use of stents in leg veins is relatively unusual. The author reports a case of this type with long-term patency and clinical success, culminating ...
Taveres Alessandro - - 2008
OBJECTIVES: We present a technique for inserting an internal-external nephroureteral antegrade stent during a laparoscopic pyeloplasty. METHODS: We describe the step-by-step technique for external-internal stent insertion during transperitoneal laparoscopic pyeloplasty: (1) Before completion of the ueretopelvic junction anastomosis, a 14-gauge angiocatheter is inserted and the external-internal stent is advanced under ...
Numan Furuzan - - 2008
The aim of this experimental study is to evaluate the feasibility of endovascular repair of the complete aortic arch by using novel fenestration devices with simultaneous support of the cerebral circulation. Two fresh human cadavers and five Yorkshire pigs were used for the experiments. In human cadavers the thoracic aorta ...
Tashiro Hirotaka - - 2009
Biliary stricture remains a significant cause of morbidity after liver transplantation. We performed duct-to-duct biliary anastomosis by using an absorbable stent tube with a diameter equal to that of pig common bile duct as an internal stent. The stent tube was constructed using a synthetic biodegradable material-a lactic glycolic acid ...
Dabus Guilherme - - 2009
We report a case of an acute middle cerebral artery (M2 segment) occlusion that was refractory to intravenous tissue plasminogen activator (IV t-PA), thrombectomy with the Merci device, intra-arterial infusion of urokinase and eptifibatide, and balloon angioplasty. The artery was so tortuous that over-the-wire stent placement failed and a salvage ...
Kelly Michael E - - 2008
Although self-expanding intracranial microstents have been used to treat acute middle cerebral artery (MCA) stroke, there are disadvantages associated with placing a permanent endovascular implant. We describe a technique in which a reconstrainable stent was used to provide a temporary endovascular bypass to achieve MCA recanalization without permanent stent implantation. ...
Chen Jack P - - 2008
Systolic compression of coronary flow is a rare angiographic finding and usually results from intramyocardial bridging. In this article, the first reported case of iatrogenic dynamic saphenous vein graft compression by adjacent stents is presented. The cyclic movements of the stents resemble the action of a nutcracker with the involved ...
Imai M - - 2008
Purpose. To assess the efficacy of the Inoue stent-graft placement for thoracoabdominal aortic aneurysm (TAAA).Methods. Patients with TAAA underwent Inoue stent-graft placement with single branched stent-graft in 4 patients,straight graft in 3 patients and double branched stent-graft in 1 patient. Half the patients required additional open surgical revascularizations of involved ...
E Yajun - - 2008
PURPOSE: To evaluate and compare the results of percutaneous transluminal angioplasty (PTA) and stent placement to treat femoropopliteal artery occlusive disease. MATERIALS AND METHODS: Published data of randomized clinical trials comparing the results of PTA and stent placement for femoropopliteal artery occlusive disease were analyzed. Proportions were combined, and the ...
Santoro Giuseppe - - 2008
BACKGROUND: Symptomatic neonatal Ebstein's anomaly shows a very poor outcome, most frequently due to duct-dependent pulmonary circulation caused by functional pulmonary valve atresia. In this setting, percutaneous ductal stenting using high-flexibility coronary stents might be a highly cost-effective alternative to systemic-to-pulmonary shunt. METHODS: Three newborns (age 4.7 +/- 2.9 days; ...
Ramcharitar S - - 2008
Bioabsorbable stents must be biocompatible and as well as their degenerated products. The challenge is to find material that exhibit minimal recoil and remain in situ for several months before complete bio-absorption. There are now some worthy polymer based and metallic bioabsorbable stents with encouraging preclinical and clinical data. Their ...
Mitsutake Ryoko - - 2008
A 77-year-old man with unstable angina pectoris showed severe coronary stenosis with soft plaque in the left anterior descending coronary artery (LAD) as detected by 64-multi-detector row computed tomography (MDCT). Percutaneous coronary intervention (PCI) with a bare-metal stent to the LAD was performed, and stent fracture immediately after PCI was ...
Vassilev Dobrin - - 2008
BACKGROUND AND AIM: Bifurcation lesions are relatively frequently encountered in everyday interventional practice. Stenting of the vessel chosen to be main (usually the larger one) frequently leads to stenosis at the ostium of the side branch (SB) and compromises its flow (side branch compromise--SBC). The relative dependence of main and ...
Hobson Alex R - - 2008
Stent thrombosis is a potentially catastrophic complication of coronary artery stenting. There have been particular concerns about the incidence of stent thrombosis following insertion of drug-eluting stents. We report a series of cases in which stent thrombosis occurred in association with malignancy and describe the potential mechanisms behind such an ...
Bosiers M - - 2008
The current evolution towards treating more complex femoropopliteal lesions as seen in the renewed TASC II recommendations clearly reflects the continuous evolutions in femoropopliteal stent design. Recent stent design improvements focus on decreasing stent fractures rates which can negatively impact patency rates. By rearranging strut alignment towards helical connecting bridges ...
Kojuri Javad - - 2008
Carotid endarterectomy is the standard treatment for carotid stenosis, but carotid artery stenting has emerged as a potential alternative. Elective carotid artery stenting was performed in 42 patients aged 42 to 79 years (mean, 67.05 +/- 8.67 years) after ultrasonography, computed tomography, magnetic resonance angiography and a neurological evaluation. There ...
N'Dandu Zola M - - 2008
OBJECTIVE: We investigated whether repeat renal artery stent placement compared with treatment with balloon angioplasty alone results in better patency in patients presenting with renal artery in-stent restenosis (ISR). BACKGROUND: Although stent placement for renal artery stenosis has been demonstrated to be superior to balloon angioplasty for "de novo" renal ...
Woo Chul-Woong - - 2008
BACKGROUND: Prostatic urethral stents are effective in relieving obstructions caused by benign prostatic hyperplasia (BPH). However, migration of these stents occurs frequently. PURPOSE: To evaluate the efficacy of a flared stent for decreasing the migration rate in comparison with a straight stent in a canine prostatic urethral model. MATERIAL AND ...
Aoki Jiro J Columbia University Medical Center and Cardiovascular Research Foundation, New York, New York 10022, - - 2008
The purpose of this study was to use intravascular ultrasound (IVUS) to investigate chronic arterial responses at the site of and adjacent to overlapping paclitaxel-eluting TAXUS stents (PES) compared with overlapping bare-metal stents (BMS). Increased paclitaxel dose in the PES-overlap region might be associated with arterial toxicity expressed as excessive ...
Bosiers M - - 2008
The importance of angioplasty and stenting in the treatment of carotid artery disease cannot be underestimated. Successful carotid stenting does not only depend of the operator's skills and experience, but also an adequate selection of cerebral protection devices and carotid stents can help avoiding neurological complications. A broad spectrum of ...
Layton K F - - 2008
We present a case in which angioplasty alone and stent-assisted angioplasty were performed in the same patient to treat medically refractory intracranial stenoses. This elderly patient with presumed intracranial atherosclerotic disease underwent angioplasty alone for his anterior cerebral artery stenosis. Stent-assisted angioplasty was used for treatment of his ipsilateral middle ...
Lubicz Boris - - 2008
INTRODUCTION: We report our experience with endovascular treatment (EVT) of circumferential and fusiform intracranial aneurysms by a reconstructive approach with self-expandable stents. METHODS: A retrospective review of our prospectively maintained database identified all circumferential and fusiform aneurysms treated by a reconstructive endovascular approach over a 3-year period. Clinical charts, procedural ...
Siani Andrea - - 2008
A coronary stent may be lost in the peripheral or visceral arterial system with an incidence ranging from 0.9 to 8.4%, however, a limb or organ ischemia after stent migration is very uncommon. We report the case of an 83-year-old man who underwent coronary artery stenting at our Hospital's Cardiological ...
Aarvold Alexander - - 2008
Arterio-ureteric fistulae are rare but can be associated with significant morbidity and mortality. We describe a novel case in which an arterio-ureteric fistula occurred as a complication following external iliac artery angioplasty and stenting, in a patient who had undergone previous pelvic surgery, radiotherapy, ureteric stenting, and urinary diversion surgery. ...
Gallo Fabrizio - - 2008
BACKGROUND: A 66-year-old man presented to hospital with gross hematuria and clots. He had previously undergone surgical repair of a right iliac artery aneurysm with placement of a vascular prosthesis at the same hospital, which had resulted in iliac urethral stricture that required the placement of a right ureteral stent. ...
Pagès Olivier N - - 2008
Brachial artery aneurisms in children under 1 year of age are very rare. The main risk is distal ischaemic complication. We report four infants suffering from brachial artery aneurism of unknown origin. In all cases we used Doppler ultrasonography to validate the clinical diagnosis. Pre-operative vascular check-up was negative for ...
Dohlen G - - 2009
BACKGROUND: Repair of neonatal tetralogy of Fallot (TOF) has low mortality. Debate continues regarding the initial management of cyanotic or duct-dependent infants with TOF and adverse risk factors. While repair can and has been performed in these patients, it is associated with increased morbidity. OBJECTIVE: We review the effectiveness of ...
Sreeram Narayanswami - - 2008
INTRODUCTION: Stenoses in the pulmonary arterial system can have a significant negative impact on the early postoperative course in infants. Early recognition and aggressive management are mandatory. PATIENTS AND METHODS: We describe our experience with 8 infants, with ages ranging from 3 to 9 months, weighing from 4.5 to 7.7 ...
Takagi Hisato - - 2008
To provide a quantitative analysis of long-term clinical outcomes, a meta-analysis of 4 randomized controlled trials of percutaneous coronary intervention (PCI) with stenting versus coronary artery bypass grafting (CABG) for multivessel coronary artery disease was conducted. The search identified 4 randomized controlled trials of PCI with stenting versus CABG that ...
Raychaudhuri Ratul - - 2009
BACKGROUND: The authors describe a case of basilar artery dissection treated with Neuroform stenting. This new treatment modality for basilar artery dissection may be safer than anticoagulation in patients with subarachnoid hemorrhage. However, complications associated with stenting should be taken into careful consideration. These complications include thromboembolism and stent infection. ...
Pavlakis Georgios P - - 2008
We describe the case of a man who underwent primary angioplasty with stenting for acute myocardial infarction and subsequently developed a coronary artery aneurysm at the site of stent deployment. The aneurysm grew rapidly in size over a few weeks and required treatment with a covered stent. The use of ...
Garvey Christopher - - 2008
The treatment of external auditory canal (EAC) stenoses often requires the prolonged use of a stent or splint. Traditional stents often occlude the EAC, resulting in a temporary conductive hearing loss. This case report describes a custom canal earmold with a large bore used as a stent in a patient ...
Cauda Furio - - 2008
PURPOSE: To evaluate the ability of heparin coating to inhibit Double J stent encrustation and compare it with the classic polyurethane Double J stent. PATIENTS AND METHODS: The study involved five patients with bilateral obstructions, who required bilateral ureteral Double J stent placement. Every patient received a heparin-coated Double J ...
Henn Christina - - 2008
PURPOSE: It is hypothesized that the inorganic polymer poly[bis(trifluoroethoxy)phosphazene] (PTFEP) reduces stent-associated thrombosis, in-stent stenosis, and inflammatory response and stimulates reendothelialization in a porcine model. MATERIALS AND METHODS: PTFEP-nanocoated and bare stainless-steel stents (316 L) were implanted bilaterally in renal and iliac arteries of 16 minipigs (1, 4, and 12 ...
Tsetis Dimitrios - - 2008
Endovascular therapy is the treatment of choice for type A and the preferred treatment for type B lesions. In selective patients, this type of treatment can be applied in type C and even type D lesions. Ipsilateral femoral, contralateral femoral, and brachial approach and both the intraluminal and subintimal space ...
Wong Geoffrey - - 2008
The goal of this study was to evaluate the ability of recombinant human thrombomodulin (rTM) to inhibit neointimal hyperplasia when bound to expanded polytetrafluoroethylene (ePTFE) stent grafts placed in a porcine balloon injured carotid artery model. The left carotid artery of male pigs, weighing 25 to 30 Kg, was injured ...
Kurimoto Yoshihiko - - 2008
BACKGROUND: Although the left subclavian artery (LSA) is simply covered to exclude distal aortic arch aneurysm during endovascular stent-grafting, this technique is potentially harmful. METHODS AND RESULTS: Between January 2001 and April 2005, 40 cases of stent-grafting were performed for distal aortic arch diseases. For all 31 elective cases, the ...
Yachia Daniel - - 2008
PURPOSE OF REVIEW: Conventional ureteral stents, which have been in use for almost 30 years, are undergoing several changes in materials, designs and purposes of use. RECENT FINDINGS: Recent advances in ureteroscopes reduced the numbers of double-J insertions. In addition, because of the frequent failures of the double-J stents in ...
Kim Joon-young - - 2008
To evaluate the potential utility of a self-expandable intratracheal nitinol stent with flared ends for the treatment of tracheal collapse in dogs, endotracheal stenting therapy was performed under fluoroscopic guidance in four dogs with severe tracheal collapse. During the 4 to 7 month followup, after stent implantation, clinical signs, including ...
Pasa Márcio Bastiani - - 2008
OBJECTIVE: To evaluate intimal thickening secondary to stent placement or to insertion of the delivery system without stent placement in pig carotid arteries. METHODS: Stents were placed in the right common carotid arteries of 7 pigs, and 7 other control pigs underwent only insertion of the delivery system without stent ...
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