[New approaches to the evaluation of pulmonary circulation in surgical patients with tuberculosis]. / Novye podkhody k otsenke legochnogo krovotoka u ftiziokhirurgicheskikh bol'nykh.

Prior to and following surgery, 70 patients were examined for pulmonary tuberculosis who were divided into 2 groups: 1) 27 patients with limited processes (tuberculomas, infiltrating, cavernous tuberculosis in 1-2 segments) and 2) 43 patients with disseminated tuberculosis in 4 lobes or more. A comprehensive examination including studies of pulmonary circulation by radiotracer techniques (scanning, scintigraphy) and an original contactless study of pulmonary circulation (CSPC). There was a correlation between the results obtained by the two methods. The findings indicate a high validity of CSPC6 which makes it possible to recommend it as a screening technique for detection of pulmonary circulatory disorders.

[Study of mineral saturation of lumbar vertebral bones in th course of systemic exposure to +Gz accelerations]. / Issledovanie mineralnoi nasyshchennosti kostnoi tkani poiasnichnykh pozvonkov v protsesse sistematicheskogo vozdeistviia peregruzok +Gz.

Of a pressing aspect of pilots' exposure to high levels of head-to-seat accelerations (+Gz) is the high risk of vertebral traumatization. In this connection, mineral saturation of the lumbar vertebral in test subjects systematically exposed to +Gz accelerations on centrifuge over two months and pilots of highly manouevrable fighters has been investigated. Results of the study point it out that systematic flight g-loads bring about an increase in vertebral bone mineralization. Thus, following a series of +Gz exposures of the test subjects the integrated content of mineral substances and the density of structural composition of vertebrals Z2-Z4 showed the average rises by 4.6% and 4.15%, respectively; however, the same parameters in the pilots were higher than in the control group by 8.8% and 10.6%, respectively. The paper discusses possible mechanisms underlying these phenomena.