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The search for a more advanced and effective method of tissue separation is continuously ongoing. In present-day surgery, the key to a successful extensive resection of a parenchymal organ is the use of a wide array of medical devices such as modern generators, surgical instruments, and anesthetic equipment. In this regard, water-jet dissectors as a tool for resection of parenchymal organs can take their place in the list of equipment used in pediatric surgery and pediatric oncology in particular, and contribute to improving patient outcomes. Here we present our experience of using water jet dissection in surgery for renal tumors in children. The work is based on the analysis of clinical material of 48 children with kidney tumors. The study was approved by an Independent Ethics Committee and the Scientific Council of the V.F. Voyno-Yasenetsky Scientific and Practical Center of Specialized Medical Care for Children. All diagnoses were confirmed by histological examination. All patients were divided into two groups: the experimental group (n = 19) and the control group (n = 29). In the experimental group (n = 19), the water jet dissection method was employed, while the children in the control group (n = 29) were operated on using standard techniques. The average duration of the surgery was 200 ± 51 minutes in the experimental group and 198 ± 92 minutes in the control group (p = 0.5). The total volume of intraoperative blood loss differed significantly between the groups: 137.3 ± 101 ml in the experimental group, and 268.1 ± 217.5 mL in the controls (p = 0.05). The patients from the experimental group stayed at the intensive care unit for a shorter period of time: 2.2 ± 0.8 days, compared to 3.5 ± 1.0 days (p = 0.04) in the control group. What is more, the children from the experimental group did not develop any complications after the surgery, while in the control group, complications were registered in 17.1 % of patients. The use of water jet surgery for resection led to reduced blood loss during parenchymal transection. The most important result of the use of water jet dissection was a significant reduction in the frequency of intraoperative blood loss, duration of surgery, and postoperative complications (from 17.1 to 0 %).

From 1990 to 2009, at the Research Institute for OBCs were examined and treated 62 children with testicular germ cell tumors. The average age of our patients was 3.7 years (range 3 months to 15 years). All children performed a study of tumor markers titer, ultrasound. In 14 children identified metastases. Surgical treatment is the first stage in the volume orhifunikulektomii conducted all 62 children. Retroperitoneal limfoadenektomiya made in 4 children and 5 children underwent thoracotomy with removal of metastases in the lung. Drug treatment was performed in 47 children with malignant germ cell tumor. Using a combined method in the treatment of malignant testicular tumors led to 100 % relapse-free and overall survival.

The routes of the spread of cholera were analyzed in 273 patients and Vibrio carriers during the outbreak of cholera in a mountainous region of Daghestan during the period of July 18 to September 4, 1994. Cholera was found to spread mainly after funeral repasts and condolence visits accompanied by the dispensation of foodstuffs, transmission being realized through alimentary and contact routes. Under the conditions of the absence of the centralized water supply system in mountain villages and the contamination of water in open reservoirs it was found to be expedient to use, in addition to the recommended complex of antiepidemic measures, small automatic filtration units.

Retrospective analysis of epidemic cholera manifestations was made in Daghestan using the data of operative epidemic analysis of the break in 1994. Unexpected prolongation of epidemic process of cholera for Daghestan, which was imported by pilgrims from Southern-Western Asia, has been shown using climate-geographical social-demographical and sanitary-hygienic peculiarities. Common laws of development of epidemic complications were demonstrated, as well as the main ways of infection transmission of great number of Daghestan settlements in epidemic process. The importance of antiepidemic means and significant role of created specialized antiepidemic groups have been emphasized in rapid carrying out of means in infection focus, including massive investigation of people in settlements.