Prognostic value of slow resolution of ST-segment elevation following successful direct percutaneous transluminal coronary angioplasty for recovery of left ventricular function.

Our objective was to investigate the significance of the slow resolution of ST-segment elevation following a successful direct percutaneous transluminal coronary angioplasty (PTCA). ST-segment elevations were calculated from electrocardiograms recorded before PTCA and 1 hour after reperfusion. Forty-nine patients experiencing their first anterior acute myocardial infarction and who had undergone direct PTCA were classified into 3 groups: 17 patients with rapid ST resolution (group I), 23 patients with persistent ST elevation (group II), and 9 patients with ST reelevation (group III).

Elastic recoil following percutaneous transluminal coronary angioplasty and Palmaz-Schatz stent implantation.

The post-procedural elastic recoil in 133 lesions treated with the Palmaz-Schatz stent was compared to 133 matched lesions treated with balloon angioplasty to determine the role of prevention of elastic recoil in the creation of a larger initial luminal diameter. Elastic recoil was defined as the difference between the maximal diameter of the inflated balloon and the minimal luminal diameter of the dilated segment immediately after the procedure and was evaluated by quantitative coronary angiography. Overdilatation was defined as a dilatation induced by a balloon with a maximal diameter larger than the pre-procedure reference diameter.

[Outcome of coronary angioplasty and coronary artery bypass grafting in patients over 75 years old].

Mortality, morbidity, and 3-year survival rates were evaluated in patients aged over 75 years undergoing initial revascularization by percutaneous transluminal coronary angioplasty (PTCA) or coronary artery bypass grafting (CABG). The groups of 74 patients undergoing PTCA and 27 undergoing CABG had similar clinical characteristics including age, sex, emergency operation, prior myocardial infarction, and ejection fraction. The PTCA group contained significantly more patients with single vessel disease (44% vs 8%, p < 0.