Search Results
Results 401 - 450 of 2907
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Kurimoto Yoshihiko - - 2009
Simple coverage of the left subclavian artery (LSA) in thoracic endovascular aortic repair (TEVAR) is still a controversial procedure. We present our modified strategy dealing with LSA in TEVAR. Hand-made stent grafts were placed more proximal beyond the LSA for 104 patients. In elective 76, preoperative LSA occlusion test was ...
Almutairi Abdulrahman Marzouq - - 2010
PURPOSE: The purpose of the study was to investigate the optimal scanning protocol of 64-slice CT angiography for assessment of coronary artery stents based on a phantom study. MATERIALS AND METHODS: Coronary stents with a diameter of 2.5mm was implanted in thin plastic tubes with an inner diameter of 3.0mm ...
Faggioli G L - - 2009
AIM: This study investigated the fate of the stent inner surface in carotid artery stenting (CAS). In addition, the occurrence of late cerebral micro-embolism after CAS has been studied in order to identify predictors and correlate it with a possible neo-intimal layer. METHODS: A series of patients were evaluated before ...
Moszura Tomasz - - 2009
Following a Glenn procedure, a stent was implanted into the pulmonary artery to relieve stenosis. After the procedure, the patient developed bradycardia and became asystolic. Resuscitation was successful following cardiac massage, but subsequent catheterization revealed the stent to be broken in two, with shift of the distal fragment. The two ...
Riedel Christian H - - 2009
BACKGROUND AND PURPOSE: We sought to determine the safety of intracranial stenting with respect to subacute stent thrombosis in patients being treated with standardized antiplatelet therapy. METHODS: We retrospectively evaluated the outcome of primary intracranial stenting of atherosclerotic stenoses and of stenting in coil embolization procedures in 67 patients. We ...
Luckie M - - 2009
Coronary artery stenting is increasingly used as a treatment for coronary artery disease. A period of antiplatelet therapy is mandatory following coronary stenting, in order to minimise the risk of stent thrombosis. About 5% of patients who undergo coronary stenting will require non-cardiac surgery within 12 months, and the management ...
Bradshaw Scott H - - 2009
Metallic stents are commonly used in many clinical applications including peripheral vascular disease intervention, biliary obstruction, endovascular repair of aneurysms, and percutaneous coronary interventions. In the examination of vascular stent placement, it is important to determine if the stent is open or has become obstructed. This is increasingly important in ...
Ferrer-Gracia María-Cruz - - 2011
The implantation of a stent in ostial lesions with Szabo technique is a simple, ingenious and useful way of treating these complex lesions. But in some circumstances the manipulation of the stent added to a calcified vessel could finish with complications. We present a case of stent dislodgement during Szabo ...
Grunwald I Q - - 2009
INTRODUCTION: The purpose of the study was to determine the incidence of new ischemic lesions found on diffusion-weighted MR imaging (DWI) in nonselected patients after unprotected carotid artery stent placement. MATERIALS AND METHODS: We retrospectively reviewed a nonrandomized cohort of 197 patients presenting with carotid occlusive disease who underwent unprotected ...
Aburano Hiroyuki - - 2010
We present the case of a common hepatic artery aneurysm successfully treated with an endovascular stent-graft. Although the long-term usefulness of stent-graft placement is not confirmed, the favorable mid-term course in our patient suggests that stent-graft placement may be considered as the treatment of choice in selected cases with hepatic ...
Meng Guo-Wei - - 2009
PURPOSE: The purpose of this study was to evaluate the longitudinal performance and anti-migration effect of a bovine valved stent equipped with an anchoring mechanism implanted off-pump in the pulmonary position. DESCRIPTION: Through a delivery system, the bell-shaped pulmonary valved stents were implanted off-pump in the pulmonary valve position into ...
Zoghbi Gilbert J - - 2009
OBJECTIVES: We hypothesized that the prophylactic administration of sodium nitroprusside (NTP) during saphenous vein graft (SVG) PCI would ameliorate the detrimental effects of distal embolization and reduce the frequency and magnitude of post-procedural myonecrosis. METHODS: Sixty-four consecutive patients with normal preprocedural cardiac enzymes underwent SVG PCI without embolic protection devices ...
Early Michael - - 2009
The success of stents to restore blood flow in atherosclerotic peripheral arteries is low relative to coronary arteries. It has been shown that joint flexion induces a mechanical environment that makes stent placement in these arteries highly incompatible, and damage and destruction of stents has been recorded. However, the effect ...
Tan G S-S - - 2009
Cerebral hyperperfusion syndrome is increasingly recognized as a complication in carotid artery stenting for severe internal carotid artery stenosis. This study reviews the cases of hyperperfusion syndrome occurring after this procedure. We reviewed our database of 170 cases of internal carotid artery stenting carried out at our hospital between January ...
Fischell Tim A - - 2009
OBJECTIVE: To evaluate the safety and efficacy of a new nitinol stent positioning system to assist in the placement of aorto-ostial coronary stents. BACKGROUND: The stenting of aorto-ostial lesions is technically challenging. METHODS: We report the first clinical series using the Ostial Pro to assist in the precise placement of ...
Hamzeh Rabih K - - 2009
Complications related to pulmonary artery stenting include stent migration, jailing of vessels, vessel rupture, and compression of surrounding structures. Compression of the left main coronary artery (LMCA) as a result of stent placement in the right pulmonary artery (RPA) is extremely rare. We present two patients post repair of congenital ...
Um Soo-Jung - - 2009
An aortoesophageal fistula (AEF) is uncommon but is frequently fatal. Most cases are attributable to a thoracic aortic aneurysm. Other common causes include malignant intrathoracic neoplasm, foreign body ingestion, endovascular stent graft repair for thoracic aortic disease, and esophageal surgery. We report a case of an AEF that developed after ...
Troost Els - - 2009
AIMS: A significant number of patients with pulmonary hypertension are resistant to medical therapy. We wanted to evaluate whether the modified technique of stent fenestration of the interatrial septum would be feasible and safe, and offer clinical benefit. METHODS AND RESULTS: The medical records of all patients with pulmonary arterial ...
Wu Eugene B - - 2010
Coronary artery infection after angioplasty or stent implantation is a rare and dreaded complication of percutaneous coronary intervention. 80% of the cases are due to Staphylococcus aureus. About half the cases lead to rupture or perforation of the coronary artery while the other half presents as abscesses or aneurysms. Surgical ...
Watarai Hirotaka - - 2009
INTRODUCTION: The purpose of the present study was to evaluate the role of multidetector three-dimensional computed tomography angiography (3D CTA) for evaluating both the residual arterial lumen and the sequential change in the intraluminal diameter and thrombus formation following carotid artery stenting (CAS). MATERIALS AND METHODS: Twenty consecutive patients consisting ...
Nemes Balázs - - 2009
Carotid stenting is a minimally invasive treatment for extracranial carotid artery stenosis. Stent design may affect technical success and complications in a certain subgroup of patients. We examined the wall adaptability of a new closed-cell carotid stent (NexStent), which has a unique rolled sheet design. Forty-one patients had 42 carotid ...
Hlawaty Hanna - - 2009
OBJECTIVE: The lipid-derived inflammatory mediators leukotrienes (LTs) are produced during vascular injury. The aim of the present study was to determine the role of LT receptor signaling in the pathophysiology of in-stent stenosis. METHODS AND RESULTS: New Zealand White rabbits were fed 0.3% cholesterol and subjected to angioplasty with balloon ...
Agostoni Pierfrancesco - - 2010
We discuss a case of late thrombosis, 9 years after implantation of overlapping bare metal stents in a circumflex artery. The patient presented with an acute ST segment elevation infero-lateral myocardial infarction. The coronary angiogram revealed a sub-occlusive thrombus within the boundaries of the stents. Aspiration of the material was performed ...
Klonaris Chris - - 2009
Rupture of infected anastomotic femoral artery pseudoaneurysms (AFAPs) represents a limb and life-threatening condition requiring emergency intervention. This study aimed to evaluate the feasibility, safety, and efficacy of a hybrid repair for ruptured infected AFAPs consisted of percutaneous stent-graft deployment and second-stage surgical debridement. Between October 2004 and January 2008, ...
Krebs Alfred - - 2009
OBJECTIVE To assess a prototype ureteric 'buoy' stent with a 10 F upper body tapering to a 3F tail, developed to potentially reduce stent-related irritative symptoms while providing an adequate mould for healing after endopyelotomy. MATERIALS AND METHODS Eighteen Yucatan minipigs had the stent placed either into the intact ureter ...
Sugimoto Kazumasa - - 2009
Stent thrombosis is one of the most feared complications after coronary stenting, because it often presents in a catastrophic way, triggering death or acute myocardial infarction. Previous studies report mechanical risk factors of stent thrombosis such as stent underexpansion and vessel dissection. This is a case report of early stent ...
Galassi Alfredo R - - 2010
We describe a case of a chronic proximal in-stent CTO extending up to the ostium of a right coronary artery where successful achievement of guidewire passage through the CTO was performed with a retrograde approach. Guidewire trapping into the right guiding catheter was performed thereafter and procedure was completed by ...
Ho Hee Hwa - - 2010
We report on the novel use of endothelial progenitor cell (EPC) capture stent for the treatment of left main coronary artery disease (CAD) for a patient who required a high risk non-cardiac surgery for his rapidly expanding abdominal aortic aneurysm (AAA). Instead of using bare metal stent, we decided to ...
Sun Zhonghua - - 2009
The purpose of this study was to present a technique of stereoscopic visualization in the evaluation of patients with abdominal aortic aneurysm treated with fenestrated stent grafts compared with conventional 2D visualizations. Two patients with abdominal aortic aneurysm undergoing fenestrated stent grafting were selected for inclusion in the study. Conventional ...
Eng Marvin H - - 2010
Visualization of coronary stents is increasingly challenging due to the reduction in stent strut thickness to improve deliverability. On the other hand stent expansion and precise implantation in the target vessel are important in optimizing short and long-term outcomes of stent-based revascularization. Stentboost Subtract is a novel X-ray technique that ...
Luehr Maximilian - - 2009
We describe the case of an 11-year-old girl with an abdominal neuroblastoma which was operated and intraoperatively irradiated nine years ago. After six years, she developed stenoses of the infrarenal abdominal aorta and both renal arteries. Initial treatment of the stenosed vessels comprised endovascular balloon dilatations and repeated stent-graft implantations, ...
Aydin Mustafa - - 2009
Stent dislodgement and migration is a rare but serious complication of stent usage. For extraction of unexpanded stents different techniques have been described previously. We describe a case which used small baloon catheter for retrieval of a stent from the SVG-RCA.
Szabadíts Péter - - 2009
Coronary stents are the most important supports in present day cardiology. Flexibility and trackability are two basic features of stents. In this paper, four different balloon-expandable coronary stent systems were investigated mechanically in order to compare their suitability. The coronary stent systems were assessed by measurements of stent flexibility as ...
Zaky Sherif S - - 2009
The endovascular treatment of aortic arch aneurysms is a relatively new technique and is associated with significant surgical and anesthetic challenges. We report a case of a 77-year-old patient with an aortic arch aneurysm at the level of the isthmus, measuring 4.9 x 6.5 cm. The aneurysm involved the origin ...
Kuraishi Keita - - 2009
There are some technical difficulties in treating for a broad necked aneurysm and a higher incidence of recurrence. Because of these drawbacks, more innovative techniques for superior endovascular reconstructive treatment are required. We developed a novel covered stent employing electrospinning to deposit fine polyurethane (PU) fibers onto stents. An in ...
Nishi Shogo - - 2009
Large or giant aneurysms in the craniocervical area with broad necks are of concern and are treated surgically, endovascularly, or in both ways. Surgically, their treatment is difficult, with relatively high risks. For their embolization, we have been developing a high-performance stent graft that has three characteristics: a thin and ...
Zuber-Jerger I - - 2009
Biliary metal stents are a permanent solution for bile duct stenosis. Complications can arise when the stent migrates, breaks or is overgrown by tumour. The following case demonstrates how a Nd:YAG laser can be used to solve these problems. A 93-year-old man presented with jaundice and fever. Two years earlier ...
Aggarwal Vivek Prakash - - 2009
A self expendable Nitinol stent was accidently maldeployed when precise positioning was being done in a pre dilated 100% occluded left subclavian artery. A significant part of stent was hanging into the arch of aorta necessitating removal of stent either surgically or percutaneously. The fully expanded stent was successfully retrieved ...
Piers Lieuwe H - - 2009
Aorto-ostial stenting remains one of the most demanding and risky types of angioplasty to perform. We report a case outlining a creative solution for the reengagement of a protruding aorto-ostial stent. A 69-year-old Caucasian man was admitted to our hospital's coronary care unit with progressive unstable angina five years following ...
Dahm Johannes B - - 2009
AIMS: Recurrent stenosis and stent thrombosis are still major concerns after drug eluting stent placement which inhibits not only the restenostic process but endothelialisation as well. In contrast, through accelerating rapid endothelialisation and development of an earlier functional endothelial layer, passive coatings have shown encouraging results. The objective of the ...
Kondo Yuka - - 2009
We report a case that was successfully treated by primary stent placement without thrombolysis or thrombectomy for graft thrombosis after aortoiliac reconstructive surgery. A 79-year-old man presented with a 2-month history of severe intermittent claudication of the right leg. He had undergone a surgical repair of abdominal aortic aneurysm with ...
Nagai Nobuhiro - - 2009
In this study, we newly developed self-expandable or balloon-expandable covered stents with a biodegradable salmon collagen (SC) film. The SC-covered stents were fabricated by placing a bare stent in a mixture of acidic SC solution and a fibrillogenesis-inducing buffer (pH 6.8) including a cross-linking agent (water-soluble carbodiimide), and subsequent incubation ...
Kos Sebastian - - 2009
The purpose of this study was to demonstrate first magnetic resonance (MR)-guided stenting of iliac and supraaortic arteries using a polyetheretherketone-based (PEEK) MR-compatible guide wire. In vitro and animal experiments were performed in a short magnet wide-bore scanner (1.5 Tesla, Espree, Siemens Healthcare, Erlangen, Germany). For all experiments, a 0.035'' ...
Kim D H - - 2009
Ureteral-iliac artery fistula (UIAF) is a rare life threatening cause of hematuria. The increasing frequency is attributed to increasing use of ureteral stents. A 68-year-old female presented with gross hematuria. She had prior low anterior resection for rectal cancer and a retained ureteral stent. CT abdomen and pelvis showed a ...
Hudsmith Lucy E - - 2009
Two adult patients with isolated, aortic interruption were successfully treated by percutaneous insertion of graft stents. Prior to the intervention, both patients were hypertensive and on medication. In both cases, an ascending aortogram demonstrated a blind ending of the thoracic aorta distal to the left subclavian artery with a large ...
Chern Joshua J - - 2009
Traumatic extracranial carotid artery injuries are rare in children. Treatment options include surgery, anticoagulation therapy and endovascular treatment. There have been only limited reports in the literature documenting endovascular carotid stent placement in the pediatric population. In these reports, stent deployment was utilized in the setting of pseudoaneurysm formation. Here ...
Sarkees Michael L - - 2009
There has been a great deal of recent controversy regarding the risk of very late stent thrombosis with drug eluting stents, especially in the context of antiplatelet therapy cessation. We report a case of very late stent thrombosis of a bare metal stent initially implanted for treatment of a myocardial ...
Agostoni Pierfrancesco - - 2009
A 56 year-old woman underwent percutaneous coronary intervention for a lesion in a small mid-left anterior descending coronary artery (reference vessel diameter by quantitative coronary angiography: 2.11 mm) with a novel drug-eluting stent specifically designed for small vessels, the CardioMind Sparrow stent delivery system. This is a self-expandable sirolimus-eluting nitinol ...
Zilani G - - 2009
The authors describe a novel approach to relieving major venous sinus stenosis at the level of the jugular bulb caused by a petrous meningioma. A balloon-expandable renovascular stent was deployed via a jugular approach to restore venous outflow and thus reduce visual and vestibulocochlear symptoms. Endovascular balloon venoplasty and stenting ...
Peters Bjoern - - 2009
Intravascular or intracardiac stenoses occur in many forms of congenital heart disease (CHD). Therefore, the implantation of stents has become an accepted interventional procedure for stenotic lesions in pediatric cardiology. Furthermore, stents are know to be used to exclude vessel aneurysm or to ensure patency of existing or newly created ...
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