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  • Title: [Lower-body negative pressure tolerance of pilots with hypertensive-type neurocirculatory dystonia].
    Author: Suvorov PM, Artamonov NN, Tarnovskiĭ BN, Bykova IuI.
    Journal: Kosm Biol Aviakosm Med; 1981; 15(3):70-2. PubMed ID: 7289549.
    Abstract:
    Cardiovascular function and LBNP tolerance were studied in 68 pilots with hypertensive neurocirculatory dystonia and 26 healthy test subjects (controls). The studies demonstrated that most dystonic subjects had distinctly peculiar features of cardiovascular compensatory reactions during LBNP tests and that 86.8+/-4.1 % of them showed high tolerance to the exposure. Their cardiovascular function was compensated at the expense of a greater than in the controls increase in the arterial tone. There were, however, fairly many cases (13.2+/-4.1%) who displayed failures of cardiovascular compensatory reserves and who lost the ability to maintain long a high arterial tone in response to the exposure. The use of provocative tests is the only method that can help identify compensatory capabilities of the cardiovascular system of pilots with hypertensive neurocirculatory dystonia and thus qualify them for their professional activities.
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