July 2002

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Volume 14 Issue 7
Direct coronary stenting is a new technique that consists of direct stent implantation without balloon predilatation of the target lesion. This strategy is now technically possible because of the improvements in crossing profile, flexibility, safety…
The presence of thrombus within coronary lesions is associated with an increased incidence of abrupt vessel closure, peri-procedural myocardial infarction and death after percutaneous transluminal coronary angioplasty (PTCA). In addition to improved…
Case Description. This patient is a 54-year-old woman with a history of coarctation of the aorta who underwent surgical repair 34 years ago, with placement of a Dacron graft (1 cm in diameter) from the ascending to descending aorta. Anatomically, she…
Antagonists of platelet receptor glycoprotein (GP) IIb/IIIa are a novel class of antithrombotic agents that provide more comprehensive platelet blockade than the combination of aspirin and heparin. Studies of patients scheduled for percutaneous coron…
Cardiac catheterization and coronary angiography (CA) carry a small but definite risk of complications. In a review of different series, mortality rates ranged from 0.02–3.70% and myocardial infarction rates ranged from 0.0–7.4%.1,2 In recent series,…
Head Up Tilt Table testing (HUTT) is often associated with a lengthy two-staged protocol (with and without isoproterenol). Recently, Shen and colleagues described a single-stage isoproterenol HUTT.1 The purpose of this study was to compare the introd…
The scope of percutaneous vascular intervention has expanded over the past two decades. Angioplasty is now the procedure of choice for peripheral vascular diseases, including those of the renal arteries. Endoluminal stent graft and covered stents are…
Pulmonary vein stenosis (PVS) is a known complication of radiofrequency ablation (RFA) of atrial fibrillation foci.1 Although balloon dilation has been reported to effectively treat PVS following RFA,2,3 restenosis has also been reported.4 We report…
Stent thrombosis represents an infrequent but potentially grave complication of percutaneous coronary intervention (PCI). With current antithrombotic regimens, stent thrombosis occurs after fewer than 1% of stent-based interventions,1,2 but may be mo…
Since the advent of percutaneous coronary intervention (PCI), the possibility of sudden and unexpected coronary thrombosis has been a concern. Initially, these concerns were largely related to acute closure occurring during the initial 24 hours follo…