V. Ya Neretin, M. A. Lobov, S. V. Kotov, G.F. Cheskidova, G. S. Mo1chanova and 0.G Safronova. Neurology Department (headed by Prof V. Ya. Neretin), M. F. Viadimirsky Regional Research Institute of Clinical Medicine (Director-G. A. Onopriyenko), Moscow.

Hyperbaric oxygenation (HBO2) was used to treat 64 patients suffering from parkinsonism of diverse etiology. HBO2 sessions were provided daily) 8-12 per course; treatment pressure ranged from 1.3 to 2 atm and exposure time ranged from 40 to 60 minutes. A marked beneficial effect was noted in 55 patients. HBO2 treatment produced better results in the presence of vascillar parkinsonism, in patients under 65 years of age, and when the history of disease ranged from 1 to 5 years. The akineticorigid syndrome regressed to a greater extent, with HBO2 proving to be less effective when trembling hyperkinesis was present Submitted to the editorial office on 03 March 1988.