Vertebral triangle of doctor A.N. Kazantsev - double vertebral artery in V3 segment.

We have described a variant of the structure of the vertebral artery. In the V3 segment, the vertebral artery bifurcated and then joined again. This building looks like a triangle.

The results of thrombectomy from the arteries of the lower extremities in patients infected with SARS-CoV-2 Omicron variant with different severity of respiratory failure.

Goal: Analysis of the results of thrombectomy from the arteries of the lower extremities in patients with COVID-19 against the background of different severity of respiratory failure.

Materials And Methods: This retrospective, cohort, comparative study for the period from 05/01/2022 to 20/07/2022 included 305 patients with acute thrombosis of the arteries of the lower extremities against the background of the course of COVID-19 (SARS-CoV-2 Omicron variant). Depending on the type of oxygen support, 3 groups of patients were formed: group 1 ( = 168) - oxygen insufflation through nasal cannulas; group 2 ( = 92) - non-invasive lung ventilation; and group 3 ( = 45) - artificial lung ventilation.

Computer Modeling of Carotid Endarterectomy With the Different Shape Patches and Prediction of the Atherosclerotic Plaque Formation Zones.

The article describes a method for constructing geometric models of the carotid bifurcation and computer simulation of endarterectomy surgery with the patches of various configurations. The purpose of this work is to identify the areas of the greatest risk of restenosis in the constructed models and to conduct a comparative analysis of risk factors when using the patches of different widths and shapes. The method is demonstrated on a reconstructed model of a healthy vessel.

Mathematical Model for the Choice of Tactics of Revascularization in Case of Combined Lesions of the Carotid and Coronary Arteries.

Based on the assessment of the long-term results of various surgical treatment strategies for patients with combined hemodynamically significant lesions of the coronary basin and internal carotid arteries, to develop a model for choosing the optimal revascularization strategy for patients with multifocal atherosclerosis. In 391 patients with combined hemodynamically significant atherosclerotic lesions of the coronary bed and internal carotid arteries, various options for reconstructive operations were performed. 1 - Staged surgery in the volume of coronary artery bypass grafting followed by carotid endarterectomy (n = 151, 38.