EVH is the name of a procedure that in the last 10 years in some countries and hospitals has replaced the method of vein removal from the leg as open or the same. EVH in fact, the abbreviation of the wordr ovesting is that by means of a lens and using only two or three holes in the leg, the large saphenous vein is removed from the leg and used to transplant the coronary heart arteries. a special course must be taken to perform this procedure. It is important to know that by performing this procedure, the patient will tolerate less pain after the operation, and the infection and inflammation caused by the open procedure after the operation will be noticeably reduced for the patient.