[The use of laser and phototherapy in the comprehensive treatment of malignant tumors and leukemia in children].

The report deals with the development of procedures, evaluation of laser application and prevention of complications involved in intensive chemoradiation therapy of neoplasms of hemopoietic and lymphoid tissue in childhood. The clinical data on 548 patients, aged 2 months-15 years, with leukemia and solid tumor were evaluated. Laser application for treatment of different complications of chemoradiation therapy of pediatric leukemia proved a valuable innovation.

[Treatment and prognosis of lymphoblastic lymphosarcoma in children].

Analysis was made of the results of the treatment of 18 children afflicted with lymphoblastic lymphosarcoma, with estimation of predictors influencing the patients' survival (from 1980 to 1986). The most important predictors influencing the 2-year relapse-free survival were found to be the stage, localization of the process, the presence of the symptoms of intoxication and biological activity. The data obtained were used later in the treatment of 160 children during 1986 to 1989.

[Results of neuroleukemia prevention in children with acute lymphoblastic leukemia].

The follow-up of 318 children with acute lymphoblastic leukemia given program therapy that included different treatments including chemo- and radioprevention of neuroleukemia demonstrated the high efficacy of the measures carried out, which reduced the incidence of neuroleukemia to 5.6%. No gross changes on the part of the neuropsychic status were revealed in the course of the follow-up of children who received the combined prophylaxis of neuroleukemia.

[Evaluation of 5-year results of the scheduled treatment of lymphogranulomatosis in children].

A total of 186 children and adolescents aged 2.5 to 16 years with Hodgkin's disease were placed under observation. According to the accepted classification (Ann Harbour, 1971) they were divided into two groups.