Nd:YAG laser has been used in the treatment of colorectal cancer since the 80s. Since January of 1988 our clinic uses laser in therapeutic program. In clinical treatments laser with the wavelength of 1064 micrometer and power of 40 - 50 W is used. Only in rare cases do we use power over 50 W. the ratio of energy for one treatment depends only on clinical effect, there are no other limits. In the first period of our clinical practice, from 1988 to 1991, all the laser treatments were held under short-term anesthesia. Our patients were hospitalized for 2 or 3 days. For the actual treatments, we used the rigid endoscopic technique and also the flexible technique (coloscop). We preferred the flexible technique definitely. Since January of 1991 we practice almost all treatments in ambulant schedule without general anesthesia. Only in the cases where treatments reach under linea dentata, we choose short-term inhale anesthesia. The patients are hospitalized for one day. In the actual treatments we take advantage of Nd:YAG laser. We try to vaporize most of the tumor masses during great hemostasis. The hemostasis is defined by the zone of coagulation.
"Nd:YAG laser in the treatment of colorectal cancer", Proc. SPIE 2623, Medical Applications of Lasers III, (19 January 1996); doi: 10.1117/12.230365; https://doi.org/10.1117/12.230365