Coronary stent implantation has significantly improved percutaneous coronary intervention and enabled the management of early complications of plain balloon angioplasty (POBA). By preventing elastic recoil and constrictive remodeling, coronary stent implantation decreases the frequency of restenosis after percutaneous coronary intervention. However, a new complication has accompanied these impr...

OBJECTIVES To evaluate the results of implantation of Wiktor tantalum wire coronary stents in stenosed or occluded coronary vessels or in saphenous vein bypass grafts. DESIGN A retrospective analysis of clinical and angiographic data from patients treated with tantalum wire stents implanted by one operator at two centres. PATIENTS 52 patients undergoing conventional balloon angioplasty had ...

Percutaneous coronary intervention is the most prevalent method for coronary artery revascularization. Initial interventions using balloon angioplasty had limited efficacy because coronary dissections, arterial recoil, and neointimal formation led to high rates of abrupt vessel closure and clinical restenosis. With the introduction of coronary stents, vascular dissections were stabilized and ar...

Coronary artery disease remains one of the leading causes of death in the United States. Over the last 30 years, the development of coronary artery angioplasty and stenting has drastically reduced mortality during acute coronary syndromes while also reducing symptoms of chronic coronary artery disease. Unfortunately, the placement of stents in a coronary artery can be complicated by in-stent th...

Since their commercial introduction in 2003, drugeluting stents (DES) have rapidly altered the management of coronary artery disease. Before their development, the percutaneous management of coronary artery disease was performed predominantly by implantation of bare metal stents (BMS) made of either surgical stainless steel or metal alloys. Although such stents represented a considerable advanc...

Since their commercial introduction in 2003, drugeluting stents (DES) have rapidly altered the management of coronary artery disease. Before their development, the percutaneous management of coronary artery disease was performed predominantly by implantation of bare metal stents (BMS) made of either surgical stainless steel or metal alloys. Although such stents represented a considerable advanc...

In-stent-restenosis (ISR) is seen in 10% of patients with DES and often treated a repeat placement. Recurrent ISR or SISR has high failure rates, requiring target vessel revascularization (TVR). A combination the presence multiple layers stents, previous restenosis, other additional comorbidities make this patient population complex higher risk. Angioplasty followed by IVBT one possible treatme...

background: the incidence of restenosis in patients suffering from coronary artery disease after undergoing angioplasty is of paramount importance. accordingly, this study aimed to investigate factors affecting the time of the first incidence of restenosis in patients undergone angioplasty in the city of zanjan, iran.   methods: this retrospective cohort study was conducted on 421 patients who ...

D espite innovative new techniques in percutaneous transluminal coronary angioplasty (PTCA) during the past 10 years, restenosis rates continue to occur at about 30% in subtotal lesions,' about 50% in chronic total occlusions,2 and up to 80% in saphenous vein bypass grafts.3 Although mortality remains acceptably low, urgent bypass surgery after unsuccessful angioplasty continues to be necessary...

Placing a coronary stent during angioplasty minimizes reduces of acute vessel occlusion [1] and restenosis [2]. Although permanent metallic stents are effective in preventing recoil and late restenosis after coronary angioplasty, they continue to have limitations such as stent thrombosis and mismatch of the stent to the vessel size. In-stent restenosis is the major shortcoming of conventional (...