[Comparison of the results of coronary angioplasty and stenting during one year following surgery].

The purpose of the study was to compare long-term results of angioplasty and coronary arterial stenting (CAS) depending on the initial degree of coronary arterial (CA) lesion according to morphological stenosis classification, as well as to evaluate the influence of re-stenosis on myocardial contractility dynamics, anginal recurrence rate, and exercise tolerance. The subjects, 228 men after angioplasty and 184 men after CAS with wire stents without drug coating, were included in the study between 1989 and 2005. Coronarography was repeated in 358 patients one year after surgery. The patients were divided into two groups. The first group consisted of 161 patients, to who 180 stents were implanted. The second group consisted of 197patients, in who 226 angioplasty procedures were performed. Data were processed using standard variational statistical methods, i.e. the calculation of mean values and standard deviation. Statistical calculations were carried out using Analysis ToolPak- VBA software of Microsoft Excel 2000. The study found that one year after either intervention the number of patients without anginal symptoms fell significantly compared with this number during the in-hospital period. In group 2 the frequency of restenosis was higher and the number of patients with anginal symptoms was significantly bigger than in group 1; the number of asymptomatic patients was significantly bigger in group 1. Initial morphological characteristics of CA lesion had a significant effect on the long-term frequency of restenosis following endovascular treatment. Restenosis was 2 to 2.5 times more frequent in patients with C type CA lesion vs. patients with A type regardless the method of endovascular intervention. The results of the study demonstrate the importance of taking into account initial morphological characteristics of CA lesion; CAS is more preferable than angioplasty, especially in patients with C type CA lesion.

[Comparison of the long-term results of endovascular treatment and coronary artery bypass grafting for 5-year follow up].

UNLABELLED: The aim of the work was to compare the long-term results of angioplasty and coronary artery bypass grafting for 5-year follow up, to evaluate the effect of dyslipidemia, diabetes and systemic inflammation on the recurrence of angina during 5 years following operation. MATERIAL AND METHODS: Between 1939 and 2005 an analysis was made of the long-term results obtained in 793 patients after coronary artery bypass grafting and in 272 patients after angioplasty followed up for 5 years. The statistical calculations were performed using Analysis ToolPak - VBA entering superstructures of the electron table Microsoft Excel 2000. RESULTS: AS compared to the hospital period, there was a significant rise of the number of patients with the recurrence of angina, which was recorded five years after surgical treatment. The incidence of the recurrence of angina in the long-term period after operation was influenced by an increase in the content of total cholesterol, low density lipoproteins, alpha lipoprotein, C-reactive protein as well as by the presence of diabetes mellitus. CONCLUSION: It has been demonstrated that as compared to the conservative treatment, the quality of life was better after surgery; the number of patients in functional class 3-4 angina and the lethality were minimized. During five years of the follow up, repeated endovascular intervention turned out not inferior to coronary artery bypass grafting. However, it is necessary to foresee the possibility of performing 2,6 repeated procedures of angioplasty.