[Chronic occlusions in patients with coronary heart disease: results of recanalization]. / Rezul'taty rekanalizatsii khronicheskikh okkliuzii u bol'nykh IBS.

The paper analyzes the results of endovascular treatment in 298 patients with chronic occlusions or subtotal stenoses of coronary arteries. The authors show that balloon coronary angioplasty for chronic coronary occlusions is an effective and relatively safe techniques of myocardial revascularization. Successful endovascularization has been achieved in 68.1% of patients with chronic coronary occlusions and in 97.5% of those with subtotal coronary stenoses. The results show a high incidence of restenosis and asymptomatic reocclusion.

[A comparative analysis of the immediate and late results of coronary balloon angioplasty in bifurcation stenoses performed by the traditional method and by the "2-guide" method]. / Sravnitel'nyi analiz blizhaishikh i otdalennykh rezul'tatov ballonnoi korornarnoi angioplastiki bifurkatsionnykh stenozov, provodimoi traditsionnym metodom i metodom "dvukh provodnikov".

To evaluate the efficiency of balloon coronary angioplasty (BCA) for bifurcation stenoses, which had been made by the two-guide method, the results of the angioplasties were examined in 147 patients with coronary heart disease. BCA had been performed routinely in 54 patients and by the two-guide method in 32. Sixty-one patients undergone angioplasty for nonbifurcation lesions served as a control group. In the group of routine BCA procedure, poor results with residual stenosis of the major vessel were seen in 13% of cases, the incidence of complication (dissection of unfavourable types, thrombosis of the major vessel) was 29.6%. In the two-guide BCA, these indices were 15.6 and 2%, respectively, the incidence of restenosis was 46.9% and that of branch lesions was 6.3%. The findings have led to the following conclusions that routine angioplasty of bifurcation stenoses yields poor early and late results of dilatation of lateral branches. The use of the two-guide method substantially reduces the risk of damage to a lateral branch, improves immediate dilatation of the major vessel, yet fails to affect the number of restenosis in the late period.

[Outcomes of balloon coronary angioplasty of bifurcation stenoses in patients with ischemic heart disease]. / Rezul'taty ballonnoi koronarnoi angioplastiki bifurkatsionnykh stenozov u bol'nykh ishemicheskoi bolezn'iu serdtsa.

The study included 322 patients with bifurcation lesion of the coronary bed who had angioplasty by the conventional procedure by employing one balloon. The authors analyze whether there is a correlation of balloon coronary angiographic findings with the following X-ray morphological characteristics: the origin of a lateral branch from the stenotic segment of the coronary artery, that of the branch at a distance of no more than 10 mm proximal or distal to stenosis, the angle of branch origin. Based on the findings, it was concluded that the origin of the branch from the stenotic segment is a factor that limits an angiographic success of dilatation of the great coronary vessel. The origin of the branch 10 mm proximal or distal to stenosis does not affect the angiographic success of the procedure. The risk factors of lateral branch lesion include the origin of the branch from a stenotic segment, an angle of branch origin of over 45 degrees.