Modern treatments destroy the incompetent vein, which causes varicose veins, inside the body. To do this, it is necessary to insert a catheter into this vein under ultrasound guidance. Then, the vein is closed by heating (laser, radiofrequency), sealing it with glue or mechanicochemically destroying it. Laser is the first method used for this purpose and is still the most preferred one in the world. Laser and subsequent radiofrequency and steam therapies heat the internal surface of the vessel, which is then eliminated by the body’s own natural mechanism. The methods of destruction in MOCA and glue treatments are slightly different. In MOCA, the vessel wall is destroyed by a rotating wire and chemical substance. In the glue method, the vessel is closed by injecting a special adhesive.

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