[Treatment of neurological postoperative disorders after surgical intervention for head and neck tumors using low-intensity laser radiation].

Objective: To evaluate the efficacy of low-intensity laser radiation in rehabilitation treatment of patients undergoing radical treatment for head and neck tumors.

Material And Methods: The study included 134 patients (39 (29.1%) men, 95 (70, 9%) women), aged from 23 to 78 years old, with an average age of 54.

[A combined method for wound treatment based on low intensity irradiation and ultrasound ].

A new combined photoultrasonic technique is suggested for the treatment of infectious injuries. The experiments were implemented on 70 male chinchilla rabbits (7 groups). The dynamics and nature of injuries' healing were analyzed by clinical pathomorphological and histochemical data as well as by biopsy samplings and capillaroscopy of injuries' edges.

[Ten-year experience with the use of laser in surgical endoscopy in cancer patients].

The calculation data are presented on a critical temperature area (45-60 deg. C) located in the wall of the gastrointestinal tract, following exposure to continuous laser radiation (1.06(m).

[The potentials for the organ-preserving treatment of early stomach cancer].

The oncological substantiation of endoscopic and economical surgical treatment of T1N0-1M0 gastric carcinoma in 46 patients was appraised. The results were studied with due regard for the peculiarities of early gastric carcinoma (EGC) revealed in 290 patients after standard surgical management. It was established that organ-preserving treatment of ECG is possible--5-years survival was 96.

[Use of 250 W YAG-Nd laser in endoscopic surgical treatment of cancer patients].

The clinical use of a fiber-laser device based on continuous 250-W YAG-Nd laser allows the pathological tissue to be treated by exposure in various energy regimens, from its coagulation to intensive evaporation; the conditions of treatment created in this case for the patient are more comfortable than those with the use of less powerful laser devices. The elaboration and manufacturing of a new design for guiding the beam into a fiber wave guide with a light-guiding lead of 600 and more microns in accordance with the model of the used endoscope even without gas injection ensures reliable functioning of the fiber-laser device. Overheating of the in put and out put ends of the fiber wave guide in exploitation at large power regimens is excluded despite soiling of the distal end of the wave guide which is inevitable during the operation.

[Effects of continuous laser irradiation with crater formation on the tissues of the digestive tract].

Experiments on operative tissues of the small and large intestine showed that energy density of the order of 1,000 J/cm2 was necessary for heating the biological tissue to yield crater formation. A laser method was developed for forming a canal in the neoplastic tissue obstructing the digestive tract.