[Pathogenesis, treatment, and prevention of erosive-ulcerative lesions in the mucous membrane of the upper digestive tract].

The authors present results of examination and treatment of 698 patients with erosive-ulcerative lesions in the mucous membrane of the upper digestive tract that accounted for 39.49% of all subjects with gastrointestinal hemorrhage. These lesions were diagnosed in 73.

[Combined mini-invasive operations in gastroduodenal ulcers].

The authors' experiences show that at the present-day stage of the development of mini-invasive surgery the combined method of operating consisting of laparoscopic and mini-laparotomic steps is a perspective alternative. In addition, the authors note high efficiency of combined operations having all advantages of mini-invasive surgical technologies which was confirmed by investigations of the effects of access on microcirculation of the peritoneum in different surgical accesses used in their clinic.

[Minimally invasive and organ-saving operations in abdominal trauma].

Results of surgical treatment with modern minimally invasive methods of 968 patients with isolated and combined abdominal trauma were analyzed. These methods permitted to make topic diagnosis earlier and to perform adequate surgery on injured organs in 82.0% patients, including in 34.

[Perspectives of using radiofrequency surgery in operations on the major duodenal papilla].

The article presents the results of an experimental study of the possibility of using radiofrequency surgery for performing papillosphincterotomy. A generator of radiowaves of a high frequency range was used for the generation of the electromagnetic field, which when acting upon the living tissues makes a cut and destruction of the tissue. The experiment was made in 20 dogs divided into two groups for acute and chronic experiments.

[The minimally invasive surgery of gallstones and their complications].

The article analyzes results of treatment of 963 patients with cholelithiasis and with the complications of this disease. Operations on these patients were performed using the following methods: laparoscopy (422), minilaparotomy (373), wide (traditional) laparotomy (168). Recommendation for different ways of operations on biliary ducts are discussed as well as the necessity of taking into consideration the results of sonographical examinations, pathomorphological and rheographic changes when choosing a particular method of surgical treatment.