Results of percutaneous transluminal coronary angioplasty and coronary stenting during the first post-intervention year

Abstract

Aim. To study long-term results of balloon coronary angioplasty (BCA) and coronary artery stenting (CAS), according to baseline CA lesion severity, by morphological stenosis classification. To assess restenosis influence on myocardial contractility dynamics, recurrent angina incidence, and physical stress tolerance. Material and methods. The study included 228 men after BCA and 184 men after CAS with non-drug-coated wire stents. Another coronary angiography was performed one year after the intervention, in 358 participants. All patients were divided into two groups: Group I (n=161; 180 stents implanted); Group II (n=197; 266 BCA procedures performed). Standard methods of variation statistics were used, with statistical package Analysis ToolPak-VBA (Microsoft Excel 97). Results. One year later, after all types of endovascular intervention, in comparison with hospitalization period, the number of patients without angina symptoms substantially reduced, and the number of angina patients significantly increased. In Group II, restenosis rate and the number of angina patients were substantially higher, and the number of angina-free individuals was significantly lower, comparing with Group I. Long-term restenosis rate after endovascular intervention was affected by initial CA lesion morphology. In Type C, comparing to Type A of CA lesions, restenosis incidence was higher by 2-2.5 times, regardless of endovascular intervention type. Conclusion. Choosing coronary heart disease management tactics, initial CA lesion morphology should be taken into account. CAS is more preferable than BAP, especially in Type C CA lesions.

Keywords

• coronary heart disease
• angioplasty
• coronary artery stenting
• long-term results