conclusion the open-cell stent is effective and its performance is higher than that obtained with the closed-cell stent for treating central vein stenosis or occlusion in hemodialysis patients. results for the open-cell stent group, 159 patients were diagnosed as central vein stenosis and 98 were occlusion. for the closed-cell stent group, 78 were stenosis and 66 were occlusion. there were two ...

Femoropopliteal lesions account for a significant proportion of endovascular interventions for peripheral artery disease in patients with disabling claudication or chronic limb ischemia. The femoropopliteal artery crosses two joint structures (hip and knee joints) and courses through the muscular adductor canal in the thigh, which places the artery at increased biomechanical stress. There is a ...

BACKGROUND AND PURPOSE In some patients with stenosis of an intracranial artery, navigating the balloon or stent-delivery system is difficult of tortuous anatomy of the aortic arch, carotid arteries, or vertebral arteries Our purpose was to describe techniques of intracranial stent placement that help in navigating the stent-delivery system in tortuous vessels. METHODS Between May 1998 and Ju...

UNLABELLED Case series Patient: - FINAL DIAGNOSIS Pulmonary artery stenosis Symptoms: - MEDICATION - Clinical Procedure: - Specialty: - OBJECTIVE Congenital defects/diseases • Unusual or unexpected effect of treatment. BACKGROUND The decision of which stent can be used for treating a congenital heart lesion can be difficult for a pediatric interventional cardiologist. Features of an ide...

In vascular cardiology, stenting coronary arteries with the diameter greater than that of the native artery has been used in an attempt to securely anchor the device against the arterial wall. Various stent-to-artery deployment ratios can be used by clinicians to implant the stent into the artery. However, stent expansion beyond the native artery diameter alters vascular hemodynamic scenarios. ...

Finite element simulations of stent deployment were carried out by considering the intrinsic anisotropic behaviour, described by a Holzapfel-Gasser-Ogden (HGO) hyperelastic anisotropic model, of individual artery layers. The model parameters were calibrated against the experimental stress-stretch responses in both circumferential and longitudinal directions. The results showed that stent expans...

BACKGROUND The US Food and Drug Administration recently issued a warning of subacute thrombosis and hypersensitivity reactions to sirolimus-eluting stents (Cypher). The cause and incidence of these events have not been determined. METHODS AND RESULTS We present findings of a 58-year-old man who died of late stent thrombosis 18 months after receiving 2 Cypher stents for unstable angina. Althou...

Objective To investigate the technical safety and clinical efficacy of a double-stent system with long duodenal extension in patients with malignant extrahepatic biliary obstruction. Materials and Methods This prospective study enrolled 48 consecutive patients (31 men, 17 women; mean age, 61 years; age range, 31-77 years) with malignant extrahepatic biliary obstructions from May 2013 to Decem...

Percutaneous coronary intervention with stenting is considered recently as the most common procedure for the treatment of symptomatic coronary. The article reviewed 41 studies published during 1997-2019 on intracoronary brachytherapy for in-stent restenosis of a drug-eluting stent. Intracoronary radiation therapy was finally confirmed in the setting of in-stent restenosis using as adjunctive th...