Intracoronary undeployed stent embolization is a rare and devastating complication of percutaneous coronary intervention (PCI). This unexpected complication can lead to coronary thrombosis, myocardial infarction, cardiogenic shock and even death. Stent embolization or misplacement has been reported in 0.3% to 1.2% of PCIs in the literature [1, 2]. Several urgent retrieval and surgical managemen...

A 50-year-old male patient presented with unstable angina in our chest pain unit. He had a history of successful resuscitation after sudden cardiac arrest attributable to acute myocardial infarction 3 years ago. Coronary angiography at that time demonstrated acute proximal occlusion of the right coronary artery (Figure 1A) treated by balloon dilatation and implantation of 2 bare metal stents (F...

Conventional methods of stenting require predilatation, which potentially increase vessel wall injury and cost of the procedure. In this study, the safety and efficacy of direct AVE-S7 (Medtronic-USA) stent placement were evaluated in 100 patients. Quantitative coronary angiography was performed at the baseline and post-stent. Clinical follow-up was done up to 9 months. In 100 patients (76 male...

BACKGROUND Coronary-stent placement is a new technique in which a balloon-expandable, stainless-steel, slotted tube is implanted at the site of a coronary stenosis. The purpose of this study was to compare the effects of stent placement and standard balloon angioplasty on angiographically detected restenosis and clinical outcomes. METHODS We randomly assigned 410 patients with symptomatic cor...

Despite the increasing use of percutaneous transluminal coronary angioplasty and intracoronary stent placement for the treatment of obstructive coronary artery disease, a large subset of coronary lesions cannot be adequately treated with balloon angioplasty and/or intracoronary stenting alone. Such lesions are often heavily calcified or fibrotic and undilatable with the present balloon technolo...

BACKGROUND Preliminary reports of studies involving simple coronary lesions indicate that a sirolimus-eluting stent significantly reduces the risk of restenosis after percutaneous coronary revascularization. METHODS We conducted a randomized, double-blind trial comparing a sirolimus-eluting stent with a standard stent in 1058 patients at 53 centers in the United States who had a newly diagnos...

Intravascular ultrasound examination (ICSI) allows to assess the nature of atherosclerotic plaque, degree significance and extent stenosis, as well monitor position stent in lumen coronary artery. Insufficient opening stent, unrecognized during angiographic control, can lead thrombosis or restenosis early long term. The clinical case presented publication demonstrates difference between results...

A 67-year-old woman with a history of diabetes, hy-pertension, severe obesity and hypercholesterolemia was admitted to our center with the diagnosis of non ST-segment elevation myocardial infarction. Electrocar-diography showed 3 mm ST-segment depressions in leads I, aVF, and V3–V6 and elevation in lead aVR. Tro-ponins were positive and ejection fraction assessed in echocardiography was 50%, wi...

BACKGROUND The aim of this study was to assess the safety and the efficacy of the novel sirolimus-eluting Prolim® stent with a biodegradable polymer in the all-comers population. METHODS We prospectively enrolled all patients with stable coronary artery disease or acute coronary syndrome treated with Prolim® stent between January and December 2013 in two interventional cardiology centers in P...

OBJECTIVE To evaluate the effect of stent based methotrexate delivery on neointimal hyperplasia. METHODS Stainless steel coronary stents and biological polymer coated (SAE) stents were randomly implanted in coronary arteries of pigs with a stent to artery ratio of 1.1:1. The pigs were killed after five days (10 stents) or four weeks (20 stents). Second, stainless steel coronary stents were di...