Despite concerns regarding the long-term safety of drug-eluting stent (DES) implantation because of late-onset stent thrombosis, the actual incidence of stent thrombosis after 1 year is unknown. We investigated the incidence, risk factors, and association of antiplatelet therapy interruption for the development of stent thrombosis after DES implantation during long-term follow-up. A total of 1,...

BACKGROUND It is generally difficult to place an iliac vein stent precisely at the iliocaval junction with venographic control or even with intravascular ultrasound guidance. Furthermore, mechanical properties of the Wallstent (Boston Scientific, Marlborough, Mass) can predispose precisely placed stents to distal displacement or stent collapse. Our center has thus advocated extending Wallstents...

The proximal optimizing technique (POT) -proximal balloon edge dilation (PBED) sequence for side branch (SB) dilatation with cross-over single-stent implantation decreases both strut obstruction at the SB ostium and stent deformation main (MB).

Uretero-Pelvic Junction Obstruction (UPJO) is a common congenital anomaly that may need pyeloplasty to prevent renal function deterioration. The purpose of this study was to describe a modified use of jj stent catheter in pyeloplasty for infant with UPJO. A series of 12 children, between 3 and 10 months, underwent stenting open pyeloplasty. In each patient a 6 French Foley catheter was placed w...

Introduction : Significant left main coronary artery stenosis jeopardizes the entire myocardium of the left ventricle and has the worst prognosis of any form of coronary artery disease. Coronary-artery bypass grafting (CABG) has been considered as the standard therapeutic approach for such patients. There are limited data on the safety and effectiveness of percutaneous coronary intervention (PC...

BACKGROUND AND PURPOSE Stent placement for intracranial atherosclerosis has become an alternative treatment technique; however, stent placement for middle cerebral artery (MCA) stenosis remains a technical and clinical challenge. Our purpose was to assess the feasibility, safety, and effectiveness of stent placement for MCA stenosis. METHODS Between May 1998 and August 2003, we performed sten...

AIMS The objective of this study was to assess the non-inferiority, in terms of anti-restenotic efficacy, of both biodegradable-polymer (BP) and polymer-free (PF) stents compared with permanent-polymer rapamycin-eluting (PP; Cypher) stent. METHODS AND RESULTS Patients with de novo coronary lesions in native vessels were randomly assigned to receive a BP stent, a PF stent or a PP stent. The pr...

BACKGROUND AND OBJECTIVES The aim of this study was to examine the anti-proliferative and anti-inflammatory effects of a stent coated with abciximab and alpha-lipoic acid (ALA) in a porcine coronary overstretch restenosis model. MATERIALS AND METHODS A total of 10 pigs were randomized into two groups (10 pigs, 10 coronaries in each group) in which the coronary arteries were stented with a dua...

BACKGROUND Stent blockage is a multifactorial process in which stent design and materials, bacteria, proteins, and bile viscosity play a role. AIMS To compare the patency of the 10 Fr Teflon Tannenbaum (TT) stent to that of the 10 Fr Cotton-Leung (CL) polyethylene stent with sideholes, in patients with malignant obstructive jaundice. METHODS Patients were recruited to this prospective multi...

The goal of this work is to quantitatively assess the relationship between the reported restenosis rates and stent induced arterial stress or strain parameters through finite element method. The impact of three stent designs (Palmaz–Schatz stent, Express stent, and Multilink Vision stent) on the arterial stress distributions were characterized. The influences of initial stent deployment locatio...