July 2002

|
Volume 14 Issue 7
Direct Coronary Stenting Through Left and Right Internal Mammary Artery Grafts
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…
Use of the X-SIZER‚Ñ¢ Catheter System in the Treatment of Acute Thrombotic Coronary Occlusion
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…
Percutaneous Revascularization of Surgically
Corrected Coarctation with Graft Restenosis
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…
Bleeding Complications of Platelet Glycoprotein IIb/IIIa Inhibitor Abciximab (ReoPro‚Ñ¢)
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…
Thrombotic Occlusion of the Left Main Coronary Artery During Coronary Angiography
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,…
A Comparison of a Single-Stage Isoproterenol Tilt Table Test Protocol with Conventional Two-Staged Tilt Protocol in Patients wit
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…
Current Clinical Characteristics and Economic Impact of Subacute Stent Thrombosis
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…
Preventing Subacute Thrombosis
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…
Conventional Versus Direct Stenting in Acute Myocardial Infarction: Effect on Immediate
Coronary Blood Flow
Although thrombus-containing lesions were previously considered as a contraindication for stenting, accumulating data regarding stenting in acute myocardial infarction (AMI) and in the presence of angiographically apparent thrombus reveal promising r…
(A, B, C) JL-4 catheters. Note the locations of the side-holes and the directions of the jets of contrast material. In JL-type catheters, the first side-hole (0.6 mm in diameter) was created at 3 mm from the tip of the catheter, and the second one of the
A New Miniature Catheter with Side-Holes for Percutaneous Transradial or Transbrachial Coronary Angiography
The percutaneous arm approach through the radial or brachial artery is becoming more popular throughout the world for left heart catheterization and coronary angiography as a safe alternative to the standard cut-down brachial arteriotomy and the per…