12-Year Experience of CO2 Laser Application in Surgeries on Hollow Organs of Gastro-Intestinal Tract

The laser as the surgical instrument has found an especially wide application in surgery on parenchymatous organs, in endoscopy, in pus surgery. The application of the laser scalpel on hollow organs is limited by the coplexity of laser beam manipulation in the depth of the wound, by the danger of damaging adiacent tissues and organs and by the overheating of tissues in the area of the incision. The tissue overheating takes place because the energy of the laser beam is absorbed by the blood flowing into the wound. Boiling blood leads to thermal damage of the surrounding tissue with the formation of large area of coagulation necrosis and with the inhibited regeneration processes. To avoid this we have developed a new and original technique of laser dissection of hollow organ’s wall to which the blood supply is temporaly stopped with the help of special instruments. These latter have two jaws. Lower jaw serves as a screen and the upper onehas a through lengthwise slot for laser beam. The instrument permits an accurate gradual transmission of the light beam and allows to perform quick and bloodless tissue cutting. It causes minimal thermal tissue damage, asepticity and the so-called “the effect of biological tissue welding”. The latter means tissue coagulation along the incision and layers’ adhesion.