The first results of a comparative study of a modified and standard fiber in an animal experiment

Backgraund: the unsolved problems of the endovenous laser obliteration are carbonized of the radial fiber and its clinging to the vein’s wall, and recanalization of the veins as well. Order to address these problems we developed the new type of fiber is cylindric diffusor with non-stick covering. Aim: to improve the results of the endovenous laser obliteration by increasing the time of exposure to laser emission on a vein wall and eliminating fiber clinging to a vein. Methods: There was 15 sheeps in the study. Endovenous laser obliteration was performed for a saphenous vein of the sheep’s limbs using a Biolitec radial fiber (group 1, n = 11) and the modified cylindrical fiber (group 2, n = 12). The operations were done under both the general and tumescent anesthesia. The parameters of the laser obliteration were 1470 nm, 6 Wt, and speed of traction 0,75 cm/sec. The changes in the venous wall were investigated in 5 hours after laser surgery using both the microscopy and the differential scanning calorimetry...