Stent embolization is a rare complication of coronary stenting. If left untreated, it may lead to devastating consequences. Although there is much known about stent embolization, data about migration of stent after deployment is limited. We report an unusual case of a deployed stent migration into the distal part of right coronary artery after intracoronary glyceryl trinitrate administration du...

Coronary stent fractures have been suggested as a potential new mechanism of restenosis. The mechanical properties of stents were designed not only to prevent vessel recoil, but also to resist the mechanical stress of vessel movement over millions of cardiac cycles. We present a case in which mechanical stress may have contributed to the fracture of a stent implanted in a saphenous vein graft (...

Stent under expansion is one of the reasons compromising outcomes percutaneous coronary interventions. The most common cause stent calcium deposited in atherosclerotic plaque. Adequate plaque modification paramount before placement a stent, as options to handle expanded are limited and less effective. In this case report, we explore usage knuckle wire for extrastent modification, after being fa...

The ZoMaxx Coronary Stent System elutes the antiproliferative agent zotarolimus via a biocompatible phosphorylcholine polymer loaded onto a novel, thin, stainless steel stent platform containing an 0.0007-inch inner layer of tantalum that enhances fluoroscopic radiopacity. The objective of this single-arm prospective clinical trial was to assess the safety and performance of the ZoMaxx stent fo...

OBJECTIVES Our aim was to examine the rate of adverse cardiac events in patients undergoing magnetic resonance imaging (MRI) <8 weeks after coronary stent placement. BACKGROUND The risk of coronary stent thrombosis from dislodgement due to MRI early after stent placement is not well defined. Manufacturers recommend postponing MRI studies until eight weeks after coronary stent placement. MET...

Stent implantation into aortocoronary saphenous vein grafts (SVG) releases particulate debris and soluble vasoactive mediators, for example, serotonin. We now analyzed effects of the soluble mediators released into the coronary arterial blood during stent implantation on vasomotion of isolated rat epicardial coronary artery segments and on coronary flow and left ventricular developed pressure i...

Optical coherence tomography (OCT) has been recently applied to investigate coronary artery disease in interventional cardiology. Compared to intravascular ultrasound, OCT is able to visualize various vascular structures more clearly with higher resolution. Several validation studies have shown that OCT is more accurate in evaluating neointimal tissue after coronary stent implantation than intr...

case presentation we present a case of a grade iii coronary perforation in which the double guiding catheter technique helped us to deliver the graft stent. conclusions the double-guiding technique is useful in emergency situations to increase the safety and efficacy of sealing a coronary perforation. introduction coronary vessel perforation is one of the most feared complications of coronary a...

The most feared complication after coronary stent implantation is the acutely occurring stent thrombosis, which usually leads to a myocardial infarction with its relatively high mortality. Dual antiplatelet therapy with acetylsalicylic acid and clopidogrel is currently the standard therapy after coronary stent implantation to prevent a life-threatening stent thrombosis. Surgery appears to incre...

Coronary stent fracture is a known complication of coronary arterial stent placements. Multiple long-term risks are also associated with drug eluting stents. 64-slice multidetector CT (MDCT) coronary angiography has been shown to detect poststent complications such as instent stenosis, thrombosis, stent migration and stent fractures. We report a case of stent fracture in a patient who underwent...