Aim. To evaluate effectiveness of the scleroobliteration in the treatment of small-diameter varicose veins.Materials and Methods. The analysis incorporated the results of sclerotherapy in 135 patients, comprising those with telangiectasias and reticular varicose veins (n=95) and those with varicose dilation of aberrant subcutaneous veins (n=40) with intact trunks of major and/or minor subcutaneous veins of the lower extremities. The sample included 111 women (82.2%) and 24 men (17.8%), with an average age of 35.2±6.5 years.For the obliteration of expanded subcutaneous veins, two sclerotherapy techniques were employed: liquid (n=65) and foam-form (n=70), prepared as per the L. Tessari method. Sclerosants used were a 0.5–3% sodium tetradecyl sulfate solution (“Fibro vein”) (ATC code: C05BB04) (n=69) or a 1-3% polidocanol solution (“Ethoxisclerol”) (ATC code: C05BB02) (n=66).A detailed analysis was carried out of all complications that developed during and at various times post-sclerotherapy, and the effectiveness of the treatment, which depended on the diameter of the expanded veins and the thoroughness of the procedure.Results. The technical success of the procedure was registered at 100%. The overall frequency of complications post-sclerotherapy was 20.7%, including 27.7% with the liquid form and 14.3% with the foam form of sclerosants (p<0.001). Intradermal and subcutaneous hemorrhages were observed in 10 (7.4%) patients, allergic reactions in 8 (5.9%), localized skin necrosis in 3 (2.2%), folliculitis in 3 (2.2%), and localized purulent complications in 2 (1.5%). Micro-air embolism of the pulmonary artery branches due to exceeding the established norm of air volume during foam sclerotherapy was recorded in 2 (2.9%) cases.Following one session, a positive sclerotherapy effect was noted in 45.9% of patients. The necessity for additional sclerotherapy courses was indicated for over half the patients, with the effectiveness rising to 97.8% after 3 or more courses.Conclusion. Sclerotherapy, being an effective minimally invasive method, is significantly impactful in treating reticular varices and telangiectasias. Greater efficiency and a lower rate of complications have been observed with the use of foam form sclerosant. Proper selection of sclerosant volume and concentration is essential for the prevention and reduction of sclerotherapy complications.

Aim. To study features of endogenous intoxication syndrome (EI), oxidative stress (LPO) and antioxidant defence (AOS) in patients with acute lower limb ischemia (LLI).Materials and methods. Some parameters of EI, LPO and AOS were studied. EI syndrome was studied in 86 patients with LLI who underwent complex examination and treatment in 2020-2021 in the Department of Vascular Surgery of the RNCfCS. POL and AOS parameters were studied in 14 patients out of 86. There were 51 (59.3%) men and 35 (40.7%) women, mean age was 56.0±5.8 years. Acute occlusion of the iliofemoral segments was noted in 33 (38.4%) patients, in 32 (37.2%) - the femoral segment, and in 21 (24.4%) - the popliteal and femoral vessels. In all cases, ischemia had a unilateral localization - on the right in 59 (68.6%) cases and on the left in 27 (31.4%) cases. In 52 (58.1%) cases, there were clinical signs of grade II b ischemia, and in 36 (41.9%) cases - grade III A (according to V.S. Saveliev, 1987). The average duration of ischemia was 77.9±28.3 hours.Results and discussion. In all cases of LLI before revascularization, there were signs of acute inflammatory reaction and EI syndrome in the form of increased ESR (42.3±7.1 mm/h), CRP concentration (16.1±4.2 mg/L), fibrinogen (8.5±0.9 g/L) and leukocytosis (12.7±1.5×109/L). Also, all patients had a slight elevation of blood glucose against the background of EI (7.5±1.8 mmol/L), a significant increase of creatinine concentration (128.9±6.1 µmol/L), urea (9.2±0.6 mmol/L) and aminotransferases as compared to normal indices. Results of LPO and AOS indices study in 14 patients showed that in LLI, malondialdehyde (MDA) increases 2.6-fold (3.9±0.1 μmol/L), diene conjugate increases 3.7-fold (0.77±0.04 units a/mL). However, after the elimination of ischemia, there was no significant decrease for 12.2±2.4 days, which confirms the presence of reperfusion syndrome. AOS indices - superoxide dismutase (20,8±1,0 u/l) and catalase (128,9±11,2 μl/l) increased 1,2 and 1,1 times in the examined patients cohort, respectively. Statistically significant associations were established between the following indices: Ischemia level and urea (r=0.89), Ischemia level and white blood cell count (r=-0.82), Hb and Er (r=0.99), Hb and creatinine (r=0.79), Hb and urea (r=0.79), Er and urea (r=0.79), creatinine and Er (r=0.90), ACTV and creatinine (r=-0.77), creatinine and urea (r=0.90).Conclusion. Acute lower limb ischemia is accompanied by ischemia-reperfusion damage manifested by endogenous intoxication syndrome, impaired glucose metabolism and activation of lipoperoxidation processes and antioxidant system. After the elimination of acute ischemia, there is not always a significant decrease in lipid peroxidation and some inflammation parameters. Therefore, prolonged use of antioxidants in the reperfusion period is recommended.

Aim. To assess the capabilities of duplex scanning and study the features of hemodynamics in the vertebral arteries before and after surgical treatment.Material and methods. The results of anatomical and circulatory characteristics of an extracranial segment of the vertebral arteries in 52 patients with various forms of pathological tortuosity were analyzed. Kinking was present in 38 patients, coiling in 8 patients, and Powers anomaly in 6 patients. There were 18 men and 34 women. The mean age of the patients was 45.6±8.7 years.Results and discussion. In all types of PT of VA with ostium stenosis, the diameter of the artery was decreased, and based on tortuosity it contributed both to the reduction and deterioration of arterial blood flow to the vertebrobasilar basin. The decrease or increase in the linear velocity of blood flow, as well as other blood flow parameters, depended on both the type of pathological tortuosity of the PA and on the vessel diameter and the value of angulation. Hypoplasia of the opposite vertebral artery also occurred in 28 patients, which resulted in impaired blood supply to the brain.Vascular examination after reconstructive surgeries resulted in normalization of the parameters of arterial circulation and cerebral perfusion. Primary vascular patency was 96.2%, restenosis was not revealed in any observation.Conclusion. Duplex scanning is a highly informative technique for both diagnosing pathological deformities of the vertebral arteries and assessing the restoration of the hemodynamics of the vertebrobasilar system after reconstructive surgery. This method provides the most accurate information on the anatomical form and localization of pathological deformities of the vertebral artery. It also allows quantitative assessment of cerebral blood flow.