[Laser application in celioscopic surgery].

The laser is certainly one of the most important discoveries of this century. Laser means: Light Amplification by Stimulated Emission of Radiation. The characteristics of laser radiation are coherence (same phase, amplitude and direction), monochromaticity, and collimation. Using by laparoscopy, it is possible to obtain cutting, vaporisation and hemostasis. Each laser is defined by wavelength specific for each different medical application. One should remember, however, that the laser is only an instrument, not a technic.