OBJECTIVES The goal of this study was to assess a new approach to stent the arterial duct in neonates with a duct-dependent pulmonary circulation. BACKGROUND Previous attempts to stent the neonatal arterial duct were unsatisfactory. Learning from these failures, we speculated that covering the complete length of the duct with current low-profile stents might avoid previous problems. METHODS...

Provisional side-branch stenting is currently the most widely accepted percutaneous technique for the treatment of bifurcation lesions. However, abrupt closure of the side branch may occur after main vessel stent implantation. Resolving side-branch stenosis under these conditions may pose major technical difficulties. We describe a new technique to resolve uncrossable side-branch occlusion foll...

DRUG-ELUTING stents (DES) represent the latest percutaneous coronary intervention (PCI) designed to deal with the problem of in-stent restenosis. These stents are impregnated with a drug (sirolimus or paclitaxel) that retards the neointimal proliferation that leads to restenosis. The thrombogenic profile of DES differs from that of bare metal stents. Postprocedure dual antiplatelet therapy (clo...

BACKGROUND Drug-eluting stents (DES) are the most common device used in percutaneous treatment of coronary artery disease. Recently, there has been an increased concern regarding their safety profile, in particular the late and very late stent thrombosis rate compared to bare metal stents (BMS). The aim of the study was to compare the reported incidence of late and very late stent thrombosis of...

BACKGROUND Considerable technological advancements have recently been made with endovascular stent grafts for the treatment of abdominal aortic aneurysm (AAA). However, there is opportunity to further improve the efficiency of endovascular aneurysm repair (EVAR), which may yield better patient outcomes and lower perioperative treatment costs. METHODS/DESIGN The Least Invasive Fast-Track EVAR ...

BACKGROUND The 2008 American Urological Association (AUA) Best Practice Statement on antimicrobial prophylaxis states that prophylaxis is not warranted for subjects with normal risk profile undergoing cystourethroscopy unless manipulation such as ureteral stent removal is performed. To date no studies have specifically assessed the need for antimicrobial prophylaxis during cystoscopic ureteral ...

OBJECTIVES The aim of this study was to assess the safety and effectiveness of the COBRA Polyzene-F NanoCoated Coronary Stent System (CeloNova Biosciences, San Antonio, Texas) for the treatment of de novo coronary artery lesions. BACKGROUND Polyzene-F-coated coronary stents have shown reduced thrombogenicity and inflammation in preclinical studies. METHODS Patients with de novo coronary art...

Intimal hyperplasia, common at the deployment site of an intra-arterial stent, may be caused by artery wall hypoxia. The purpose of this study was to determine the effect of an intra-arterial stent on artery wall oxygen concentrations. Transarterial wall oxygen gradients were measured by microelectrode at stent deployment sites in New Zealand White rabbits. Thinned artery walls and decreased ox...

OBJECTIVE An open cell stent system may offer better apposition of cell struts to vessel wall than a closed cell stent system in acute vasculature. The purpose of this study was to evaluate the feasibility of coiling using the jailing technique with the Neuroform EZ stent system. METHODS The jailing technique using the open-cell stent system of the Neuroform EZ stent was planned in 22 consecu...

background: the biolimus-eluting stent (bes), with a biodegradable polymer, has not been previously compared with the everolimus-eluting stent (ees), as a second-generation drug-eluting stent (des).we sought to compare the 1-year outcome between the promus ™ stent (ees type) and the biomatrix ™ stent (bes type). methods: from march 2008 to september 2011, all patients treated with the promus™ s...