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[Nervous disorders in those engaged in the cleanup of the accident at the Chernobyl Atomic Electric Power Station subjected to ionizing radiation exposure at low doses].

Neurological, psychiatric, somatic and immune status were studied in 256 patients subjected to ionizing radiation at the dose of 10-45 cGy during liquidation of aftermath of the Chernobyl accident. In 61% of them neurocirculatory dystonia was found, 39% of patients revealed dyscirculatory encephalopathy. Alongside with dystonic disorders structural changes of vessels were detected. Asthenoneurosis diagnosed in 97% of patients was recognized as a key syndrome in 53%, while in 23%--obsessional-phobic syndrome dominated, in 7%--depressive syndrome and in 14%--psycho-organic syndrome were at the foreground. Somatic status in most patients (67%) was burdened by diseases of digestive tract. 191 patients revealed considerable immune imbalance. In 95 patients (33%) it was less pronounced and consisted in moderate decrease of TPR/TPS ratio. Degrees of immune and neurological disorders correlated closely. The conclusion was made that low-dose radiation induces primary damage of immunity and vessels with secondary nervous system involvement. That is why connection between neurological symptoms and radiation in subjects who took part in liquidation of Chernobyl accident aftermath may be considered probable only in association with immune and circulatory disorders.