Chronic ischemia of the brain, as a result of pathogenous crimpiness of carotid arteries causes serious disorder of cognitive functions. Surgical restoration of adequate blood supply to the brain is accompanied with a considerable improvement of parameters which can serve as an objective criterion for effectiveness of patients’ rehabilitation after reconstructing operations at the carotid arteries.

The object of the research: residents of Gomel Oblast. The aim of the research - definition of comparative frequency of transitory ischemic attacks at liquidators and in other groups of population, studying of percentage of patients with disability caused by ischemic stroke.

As the object of an investigation there were 8 patients (1man, 8 women) with primary hyperparathyroidism which were the residents of Gomel’s and Mogilev’s regions contaminated by radioactive nuclides for the period from 2003 to 2008. The all patients had the considerable hypercalcemia obstruction, tumor mass (lightcell adenoma) of one parathyroid gland, clinical presentations of primary hyperparathyroidism. For the patients made the parathyroidectomy, surgical removal of parathyroid gland adenoma. It was marked off the normalization of laboratory indices and the opposite development of clinical presentations during 3 and 30 days accordingly.

Using questioning method there was studied the quality of life of patients with chronic cerebrovascular deficiency at liquidators and the Chernobyl-affected persons before and after surgical restoration of an adequate blood flow in a carotid extracranial section. There was used a questionnaire Medical Outcome Study Short Form-36 (SF-36) to estimate the quality of life.