[Long-term follow-up use of "cypher" sirolimus-eluting stents in patients with coronary heart disease after coronary artery bypass grafting with occlusive lesions of the coronary artery].

UNLABELLED: The aim of this study is to assess the 1 and 2-year follow-up of treatment with Cypher drug- eluting stents (Cordis, Johnson & Johnson, USA) for chronic symptomatic coronary artery occlusions in CHD patients after coronary artery bypass graft. That was a retrospective study that included 51 patients who had been implanted Cypher stents. A control group comprised 65 symptomatic patients with coronary heart disease (CHD) after coronary artery bypass grafting with occlusive lesions of the coronary artery, who was carried out only conservative treatment (without PTCA). Patients received standard medicamentous treatment. The groups did not differ in clinical characteristics. 79 stenoses in the eluting stent groups were subject to revascularization. The immediate cure rate was 84.3%. During the follow-up, one patient (2.3%) died and 4 (9.3%) underwent coronary bypass surgery in the drug- eluting stent group; there were 3 (4.6%) deaths and 10 (15.4%) patients had coronary bypass surgery in the control group. After stenting we noted a reliable decrease of patients with anginal attacks, of the used nitrates, increase the average physical tolerance by stress- testing (p < 0.05) than by patients in control group. CONCLUSION: stenting chronic coronary artery occlusions in patients with coronary heart disease (CHD) after coronary artery bypass grafting with the use of Cypher drug- eluting stents (Cordis, Johnson & Johnson, USA) is an effective procedure from the viewpoint of long-term results, with low frequency of recurrent angina and repeated myocardial revascularization.

[Endovascular embolization of arteriosinusoidal fistula with new coil type]. / Endovaskuliarnaia émbolizatsiia arterio-sinusnogo soust'ia novym tipom spiralei.

A case report for endovascular embolization of cerebral arteriosinusoidal fistula with new coil type is presented. Endovascular procedure enabled to avoid extensive surgical intervention and provided the evidence of its effectiveness for management of patients with cerebral arteriovenous malformations.

[A quick method for estimation of fractal dimensions of macromolecular coils of biopolymers in solutions]. / Ekspress-metod otsenki fraktal'noi razmernosti makromolekuliarnykh klubkov biopolimerov v rastvore.

The viscometric measurements were used to assess the fractal dimensions of macromolecular coils in solutions. The relationships between the fractal dimensions and other hydrodynamic properties were determined. These data were used to determine the parameters of the Mark-Houwink equation.