Experience of endovenous high-frequency electric welding in the treatment of chronic diseases of the lower extremities veins.

Objective: Aim: The purpose was to improve the results of treatment of chronic diseases of the lower extremities veins by using endovenous high-frequency electric welding in automatic mode, and to evaluate the obtained results..

Patients and methods: Materials and methods: The results of treatment of 146 patients with chronic diseases of the lower extremities veins in the period from 2018 to 2023 were analyzed. There were 87 women (59.59%) and 59 men (40.41%). Reflux in the great saphenous vein was observed in 124 (84.93%) patients, in the small saphenous vein - in 22 (15.07%). Elimination of reflux in the great and small saphenous veins was performed by the method of endovenous high-frequency electric welding using the device «High-frequency electrocoagulator EK-300M» (Ukraine) in automatic mode. The stability of occlusion in the great and small saphenous veins after endovenous high-frequency electric welding was assessed on the basis of ultrasound examination at 7 days, 1, 3, 6, 12 months and more.

Results: Results: The postoperative pain along the treated vein was noted in 2 (1.36%) patients, discomfort - in 124 (84.93%), feeling of a pull on the inner surface of the thigh - in 65 (44.52%), paresthesias in the thigh or lower leg - in 6 (3.57%), inflammatory infiltration along the treated vein - in 1 (0.68%), recurrence of the disease - in 2 (1.19%). Сomplete ablation was achieved in 146 (100%) operated patients. Complete ablation of veins was achieved due to the fact that the parameters of endovenous high-frequency electric welding, which, unlike endovasal laser ablation and radiofrequency ablation, are generated automatically based on the principle of feedback between the device itself and a specific level of impedance of the venous wall, ensure high-quality thermal treatment of all layers of the vein in each individual segment. The gentler energy effect of endovenous high-frequency electric welding on the vein walls compared to endovasal laser ablation and radiofrequency ablation reduces the manifestations of side effects and complications from the paravascular tissues.

Conclusion: Conclusions: The method of endovenous high-frequency electric welding is an effective treatment of chronic diseases of the lower extremities veins, leading to complete vein ablation in 100% of cases within a follow-up period of 12 months or more.