[Brain glioma and the concomitant encephalopathy studied from the epidemiological aspect].

Based on an analysis of 1,255 cases of brain gliomas operated during 30 years, a relative constancy of the disease incidence together with enhancement of its expressivity was discovered. As compared with the typical forms, the growth of malignant tumors of the astrocytic type was revealed, as was a great number of patients with neoplasms spreading to several lobes of the brain as well as of patients manifesting the neurological symptomatology since the first days of life. As compared to the tumor disease incidence in the population, noticeable predominance of oncological diseases was established in the families of patients with brain gliomas. Some meteorological phenomena correlate with certain epidemiological parameters in brain gliomas. 75% of patients with gliomas were found to have diseases that possess an immunodepressive action. It is not excluded that these diseases may be among the causes of encephalopathy progression in the postoperative period.