Mechanical Prosthetic Aortic Valve Thrombosis Complicated by an Acute Coronary Syndrome During Fibrinolysis.

A 70-year-old man with mechanical aortic and mitral valves was admitted with progressive shortness of breath. He was found to have thrombosis of the aortic valve prosthesis. Treatment with intravenous thrombolysis was complicated by an acute coronary syndrome related to coronary embolism.

Rotational ablation of discrete lesions in the coronary arteries is safe. A nonrandomized comparison with percutaneous transluminal coronary angioplasty.

Rotational ablation is receiving increasing attention as a new therapeutic intervention for coronary artery disease. In a nonrandomized study, we compared echocardiographic regional wall-motion scores of patients treated with rotational ablation with those of patients treated with percutaneous transluminal coronary angioplasty. We found that rotational ablation achieved angiographic results comparable to those of percutaneous transluminal coronary angioplasty, and was in fact associated with less myocardial ischemia.

Rotational atherectomy multicenter registry: acute results, complications and 6-month angiographic follow-up in 709 patients.

Objectives: The purpose of this study was to describe data collected for an industry-sponsored multicenter registry of rotational atherectomy.

Background: Several new devices are in use or under development for coronary atherectomy. The clinical role for each is in part defined by descriptive registry data.

Rotational ablation of coronary artery lesions using single, large burrs.

Previous clinical use of the Rotablator in coronary artery disease has involved a sequential increase in burr sizes up to 2 mm in diameter and has often utilized balloon adjunct to achieve an optimal result. We report our experience and describe our technique using a single, large burr (2.25, 2.

Rotablator induced "shave" of intraluminal cap exposing intramural plaque crater.

A patient with recent onset of unstable angina was found to have a severe, eccentric stenosis of the proximal left anterior descending coronary artery. Rotational atherectomy was performed. After the first passage of the burr across the stenosis, an intraplaque crater was angiographically visualized.