Accelerated coronary ostial stenosis is an infrequent late complication of coronary artery catheter instrumentation during aortic valve surgery, PTCA, or coronary angiography. We report the first case of bilateral coronary artery ostial stenoses developing after cardiac catheterization and right coronary artery PTCA. In patients with worsening angina following cardiac catheterization or PTCA, a...

To determine whether percutaneous transluminal coronary angioplasty (PTCA) would lead to neutrophil activation with subsequent discharge of proteolytic enzymes, like elastase, and oxygen free radicals, like superoxide anion, blood samples were taken from the coronary sinus and aorta in 14 patients with stable angina and one-vessel disease who underwent PTCA. Neutrophils were separated by means ...

Introduction: The risk of developing coronary artery disease (CAD) for both men and women is increasing in society today. Over the past twenty-five years, the concepts of percutaneous transluminal coronary angioplasty (PTCA) and stenting have become dominant modalities in the treatment of CAD. In the late 1970’s and early 1980’s, PTCA was seen as the best possible alternative to bypass surgery ...

Objective: To compare the early and late outcomes of primary percutaneous transluminal coronary angioplasty (PTCA) with fibrinolytic treatment among diabetic patients with acute myocardial infarction (AMI). Design: Retrospective observational study with data obtained from prospective registries. Setting: Tertiary cardiovascular institution with 24 hour acute interventional facilities. Patients:...

OBJECTIVE To evaluate the relationship between the completeness of revascularisation by percutaneous coronary intervention and the one-year occurrence of adverse cardiac events in patients with multivessel disease. PATIENTS Patients with stable or unstable angina pectoris, or with exercise-induced ischaemia, were enrolled in the Coronary Angioplasty versus Bypass Revascularisation Investigati...

CONTEXT Despite evidence from randomized trials that, compared with early thrombolysis, primary percutaneous transluminal coronary angioplasty (PTCA) after acute myocardial infarction (AMI) reduces mortality in middle-aged adults, whether elderly patients with AMI are more likely to benefit from PTCA or early thrombolysis is not known. OBJECTIVE To determine survival after primary PTCA vs thr...

BACKGROUND Plasma levels of endothelin-1 (ET-1) increase after coronary angioplasty (PTCA) due to endothelial injury during the procedure. ET-1 has been found in human endocardial and myocardial cells. It is not known whether ET-1 increases after thermal injury induced by radiofrequency catheter ablation (RFA). METHODS We determined plasma ET-1 levels at baseline, immediately after, and at 2 ...

It has been proposed that directional coronary atherectomy (DCA) should be an intervention of choice in larger vessels as one can achieve a greater minimal luminal diameter with DCA than with percutaneous transluminal coronary angioplasty (PTCA). This in turn should translate into a higher success rate and may even reduce the restenosis rate. The aim of this study was to compare DCA versus PTCA...

OBJECTIVE To estimate in-hospital mortality and prevalence of complications of percutaneous transluminal coronary angioplasty (PTCA) in public hospitals. METHODS Data for 2,913 PTCA were obtained from the Brazilian National Health System (SUS) Hospital Authorization Database in the city of Rio de Janeiro, Southeastern Brazil, between 1999 and 2003. After simple random sampling and data weight...