[Response of the cardiovascular system to acetylcholine test in patients with bronchial asthma].

The response of cardiovascular system to acetylcholine inhalation has been studied in 10 patients with bronchial asthma in remission. With the threshold dose of the drug, i.e.

[The effect of verapamil on external respiratory function in bronchial asthma patients during high-altitude speleotherapy].

To study the effect of speleotherapy on external respiration (ER) in asthma, ER was investigated in 2 randomized groups of 20 asthma subjects each. Speleotherapy was conducted in 24-day courses in salt caves of Chon-Tuz (2100 m above the sea level). The overall exposure lasted 160 hrs.

[External respiratory function in healthy subjects under joint exposure to conditions of a central highlands and a salt mine microclimate].

Spirographic examinations have been performed in 20-25-year-old healthy men randomized into two groups. Group I subjects underwent a 24-day adaptation to the climate of moderate altitudes (2100 m above the sea level). In addition, group II subjects spent a few hours daily (day 5-23, altogether 170 hours) in a salt mine Chon-Tuz.

[Features of the ECG in acute altitude sickness].

Using the Minnesota Code, we analysed ECGs of 58 subjects with smooth adaptation to high altitude (3.600 m) and of 70 patients with acute mountain sickness. In both groups, the 30-day sojourn at high altitude was characterized by ECG signs of the right heart overload; these signs were more marked in patients with acute mountain sickness.

[T- and B-components of immunity in acute altitude sickness].

Immunological aspects of the adaptation process were investigated in 57 male test subjects that stayed for 30 days at an altitude of 3600 m above sea level (Eastern Pamir Mountain Range). The uneventful development of adaptation was accompanied by a short-term decrease in the number and activity of T-lymphocytes. An acute mountain disease led to a distinct deficiency of T-cell immunity which still persisted on test day 30.