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A study of the hemodynamics during oxygen respiration under excess pressure

  • Pathological Physiology and General Pathology
  • Published:
Bulletin of Experimental Biology and Medicine Aims and scope

Summary

To investigate the shifts occurring in hemodynamics during oxygen respiration under excessive pressure, the authors studied the electrocardiograms, ballistocardiograms, and plethysmograms and determined the pulse wave velocity. Respiration under a pressure of 8–15 mm Hg produced hemodynamic shifts manifested in the increase of the volume of extremities and pulse wave velocity and reduction of systolic complex of the ballisto-cardiogram; however, these changes were insignificant. With a pressure of 20–25 mm Hg, the shifts were pronounced in all the persons tested. With a pressure of 30–40 mm Hg, counter-pressure exerted on the body had a marked effect on normalization of circulation. With respiration under 50–60 mm Hg pressure or more, hemodynamic disturbances could not be completely eliminated, even by counter-pressure on the body.

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Authors and Affiliations

  1. Institute of Experimental Biology and Medicine of the Siberian Division of the Akad. Nauk SSSR, Novosibirsk

    Yu. A. Vlasov, V. S. Gurfinkel', D. I. Ivanov, V. B. Malkin, E. O. Popova & M. L. Shik

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  1. Yu. A. Vlasov
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  2. V. S. Gurfinkel'
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  3. D. I. Ivanov
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  4. V. B. Malkin
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  5. E. O. Popova
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  6. M. L. Shik
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Vlasov, Y.A., Gurfinkel', V.S., Ivanov, D.I. et al. A study of the hemodynamics during oxygen respiration under excess pressure. Bull Exp Biol Med 51, 408–412 (1961). https://doi.org/10.1007/BF00779523

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  • DOI: https://doi.org/10.1007/BF00779523

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