Introduction. Chronic venous disease significantly reduces quality of life and often leads to complications. The only way to eliminate hemodynamically significant blood flow disorders is the surgical method, incl. its latest modification is the VenaSeal.Objective of the study. To study the immediate and long-term results of the use of VenaSeal adhesive technology to obliterate the incompetent major saphenous veins, as well as the potential benefits in special groups of patients based on three-year experience in using VenaSeal Glue Procedure.Materials and methods. Over a 3-year period, we have treated 104 patients with VenaSeal. The average age was 59.6 ± 14.97 years, the CEAP class was 3.2 ± 1.09. 101 patients had varicose veins, in three cases - post-thrombotic. The intervention was performed on 117 incompetent main veins: GSV – 107, SSV – 10.Results and discussion. Clinical evaluation and ultrasound imaging of veins immediately after the intervention of vein occlusion throughout the intervention. There was no pronounced pain syndrome after surgery. Complications occurred in 3 patients in the form of chemical phlebitis. Long-term results up to 3 years were studied clinically and using ultrasound in 72 patients (76 veins): recanalization was noted in 2 GSV (2.6%), which in one case was accompanied by the formation of a recurrent varicose veins. To study the effect of VenaSeal on the quality of life in a comparative aspect, a non-randomized, single-center, open-label study was carried out; it included patients, incl. with GSV occlusion using RFA and EVLT. In the group of patients after VenaSeal, the quality of life indicators were better values. In addition, the absence of the need for elastic compression made the surgical treatment of patients with chronic venous disease and concomitant lesions of the peripheral arterial bed. In groups of elderly and senile patients, patients with weeping eczema, with obesity, additional advantages were found in the form of a decrease in the invasiveness of the intervention and the possibility of correcting reflux as a hemodynamic basis for the development of trophic disorders with the aim of their faster and more effective relief.Conclusions. Non-thermal obliteration of incompetent major saphenous veins using VenaSeal in varicose veins and post-thrombotic disease is highly effective: the immediate results assessed with clinical methods and using ultrasound duplex scanning confirmed the occlusion of the target vein in all cases. The study of long-term results revealed recanalization of two veins out of 76, which accounted for 2.6%.