[Evaluating psychophysiologic adaptation state in operators of Bilibino nuclear power station].

The study revealed that 60% operators of Bilibino nuclear power station suffer from psychosomatic diseases, 41.7% of them are assigned to occupational group of workers, and major part of the examinees with psychosomatic diseases (45.82%) are aged 41-50, high integral level ofpsychophysiologic adaptation is revealed in 5 examinees (12.5%), medium integral level--in 12 examinees (30%). Lower integral level of psychophysiologic adaptation manifested in decrease in psychophysiologic and physiologic levels.

[Contemporary legislation and importance of psychophysiologic examination in system of medical support for workers engaged into production with radiation and nuclear danger].

In accordance with contemporary legislation, the article covers materials on specification and approbation of concept model for psychophysiologic examination in medical establishments during medical examination of workers engaged into production with raidation and nuclear danger. The authors defined methodology, examination methods and designed an order of psychophysiologic examination. The psychophysiologic examination and purpose-oriented rehabilitation appeared efficient.

[Results and prospects of radiation neurology]. / Itogi i perspektivy radiatsionnoi nevrologii.

The article represents main results and prospective goals on a problem concerning neurologic disorders caused by ionizing radiation in atomic industry workers.

[Psychological aftereffects of the disaster at the Chernobyl NPS]. / Psikhologicheskie posledstviia avarii na Chernobyl'skoi AES.

Available are the data on the trend in psychoneurological syndromes demonstrable in all the periods of developing acute radiation disease in the victims of the disaster at the Chernobyl nuclear power station. It is shown that the risk of small-dose ionizing radiation may lead to psychological dysadaptation. Psychogenias are outlined as far as their triggering factors and manifestations in members of the emergency teams are concerned.

[Diagnosis of autonomic-vascular dystonia in persons who participated in the liquidation of the effects of the Chernobyl AES accident]. / O diagnoze vegetativno-sosudistoi distonii u lits, prinimavshikh uchastie v likvidatsii posledstvii avarii na Chernobyl'skoi AES.

The diagnosis of autonomic-vascular dystonia caused by small doses of ionizing radiation can be made only on the basis of the objectivity, completeness, constructive and individual character of data. It gives an opportunity to reflect in the diagnosis cause/effect relationships, to define the main and supplementary factors of a pathological process and to show their interrelationships and interinfluence. It leads to the development of adequate therapeutic-rehabilitation tactics.

[The results and tasks of clinical research in radiation neurology]. / Itogi i zadachi klinicheskikh issledovanii po radiatsionnoi nevrologii.

The paper is devoted to the main stages of development of radiation clinical neurology, paying attention to the contribution of Soviet clinicians in the problem. Neurological disorders in ARS of various degrees of severity at different periods of disease as well as during irradiation at doses, not causing ARS development were described. The importance of clinicophysiological investigations for assessment of CNS function during the development of disease and its aftereffects was shown. The role of psychological investigations and studies on mental abilities of persons, exposed to acute ionizing radiation, was emphasized.

[The psychic status and work capacity of the victims of the accident at the Chernobyl Nuclear Power Station in the period of recovery from and near-term consequences of acute radiation sickness]. / Psikhicheskoe sostoianie i trudosposobnost' postradavshikh pri avarii na Chernobyl'skoi AES v period vosstanovleniia i blizhaishikh posledstvii ostroi luchevoi bolezni.

Analysis of the results of clinicopsychological investigation of persons developing ARS (I-III degree of severity) as a result of the Chernobyl accident has shown that 4-6 mos. after the exposure the psychic status and mental working ability of the affected persons showed close correlation with a degree of ARS. In 12-18 mos. profession and adequate employment played a decisive role in the formation of unfavorable psychic conditions and limited working ability. Later on in 2.5-3 years after exposure a decrease in psychic working ability, the development of unfavorable psychic conditions was noted more frequently in patients with ARS of more severe types and in examinees of older age. At all stages of rehabilitation personality traits of the affected persons play an important role in the revival of working abilities.

[Nervous system function in persons receiving irradiation at different dose ranges during the cleanup after the accident at the Chernobyl Atomic Electric Power Station]. / Sostoianie nervnoi sistemy u lits, poluchivshikh obluchenie v razlichnom diapazone doz pri likvidatsii posledstvii avarii na Chernobyl'skoi AES.

The paper is concerned with the results of neurological examination of 113 patients who developed acute radiation sickness of various degrees of severity during the elimination of the effects of the accident at the Chernobyl Nuclear Power Station. A clinical picture of neurological disorders at different periods of ARS was described. CNS specific and nonspecific lesions were defined.

[The effect of small doses of ionizing radiation on the development of vascular brain diseases]. / K voprosu o vliianii malykh doz ioniziruiushchei radiatsii na razvitie sosudistykh zabolevanii golovnogo mozga.

Overall 1,104 persons exposed to industrial radiation were examined for the effect of minor doses of ionizing radiation on the development of the initial forms of cerebrovascular diseases (CVD). Use was made of an original method of five-factorial screening prediction of the development of CVD. As a result of the examination, 603 persons (54.6%) made up a group at greater risk for cerebrovascular insufficiency. Arterial hypertension was found to be the leading risk factor while the age 45-49 years turned out most dangerous from the standpoint of the onset of the diseases under consideration. No relationship was established between the total dose of external radiation and the risk of the development of cerebrovascular disorders. 96 persons at greater risk for CVD were subjected to a thorough clinical and instrumental examination. Of these, 79.2% appeared to have initial manifestations of brain circulatory insufficiency and stage I dyscirculatory encephalopathy.

[The cerebral hemodynamics in acute radiation sickness developing in the victims of the accident at the Chernobyl Atomic Electric Power Station]. / Tserebral'naia gemodinamika pri ostroi luchevoi bolezni, razvivshei u postradavshikh pri avarii na Chernobyl'skoi AES.

Cerebral hemodynamics was investigated on the basis of rheoencephalography findings in persons with ARD of various degrees of severity in the latent period and during rehabilitation. The data obtained showed correlation of cerebral hemodynamics and a degree of gravity of ARD and a period of development of disease. A decrease in pulse rate, a tendency to increased peripheral resistance and vein tone and an increased rate of cerebral dystonia were marked at the time of rehabilitation of patients with ARD, II-III degree.

[Status of the nervous system in victims of the accident at the Chernobyl atomic power plant]. / Sostoianie nervnoi sistemy u postradavshikh pri avarii na Chernobyl'skoi atomnoi élektrostantsii (ChAES).

Under neurological investigation were 113 patients with different degrees of severity of acute radiation disease (ARD). The patients were relatively evenly irradiated by beta- and gamma-rays as a result of CPP accident. The onset time and markedness of the signs of primary reaction were related to ARD severity. Early appearance of the signs of disturbances in the central nervous system functional state suggested a stronger affliction, malignant course and fatal outcome of the disease. Ii ARD patients with IV-th and III-rd degree of severity the syndromes observed were these: acute radiation encephalopathy immediately caused by the ionizing irradiation of the CNS, and a secondary radiation-toxic encephalopathy. The hemorrhagic lesioning of CNS and cerebral hemispheres were noted in terminal stages. In rehabilitation phases, neurasthenic and neurovascular syndromes appeared irrespective of the ARD severity.

[Problem of clinico-psychological evaluation and prognosis of mental and physical work capacity of persons with a history of acute radiation injuries of moderate severity]. / K voprosu o kliniko-psikhologicheskoi otsenke i prognozirovanii umstvennoi rabotosposobnosti i trudosposobnosti lits, perenesshikh ostruiu luchevuiu bolez'n legkoi stepeni tiazhesti.

The analysis of 4 examples of the development of various psychic states in patients having acute radiation sickness of minor degree during the rehabilitation period in 7-9 months following the disaster at the Chernobyl APS showed the correlation of disease outcome with a complex of psychological factors characteristic of the disaster and the disease itself, personality and occupational characteristics of those exposed before the disaster. The findings of the complex psychological study can be used for expert appraisal and forecast of health state, mental and work capacity of the patients, their professional fitness. They can be also used for the development of rehabilitation activities.