Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1970-1974  (2)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Graefe's archive for clinical and experimental ophthalmology 188 (1973), S. 221-230 
    ISSN: 1435-702X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Durch die Inhalation CO2-haltiger Gasgemische gelang bei 12 jungen lungengesunden Probanden die Erzeugung verschieden hoher CO2-Spannungen im Blute (paCO2). Es zeigte sich, daß mit dem Anstieg des paCO2 eine Zunahme des Orbitalen Pulsationsvolumens (PV) verbunden war. Zugleich nahm der Blutdruck sowohl in der Arteria ophthalmica als auch in der Arteria brachialis signifikant zu. Die ODG-faßbaren Reaktionen der Orbitalen Gefäße entsprechen somit unter CO2-Atmung den aus experimentellen Untersuchungen bekannten Effekten des CO2 auf den Gehirnkreislauf. Durch die in der gleichen Versuchsreihe mittels O2-Inhalation erzeugten O2-Spannungsänderungen (paO2) wurden — entgegen den Erwartungen — jedoch ebenfalls Zunahmen der Orbitalen Pulsationsvolumina (PV) erzielt. Mit dem Anstieg der O2-Spannung im arteriellen Blut (paO2) ging jeweils eine Zunahme der PV-Werte wie auch der Blutdruckwerte in der A. ophthalmica und der A. brachialis einher. Die erhobenen ODG-Befunde entsprechen also nicht den aus experimentellen Untersuchungen bekannten Effekten des paO2 auf die cerebralen Gefäße.
    Notes: Summary In 12 healthy subjects, inhalation of gas mixtures containing carbon dioxide produced varying degrees of carbon dioxide partial pressures in the arterial blood (paCO2). Increased values of paCO2 were always connected with increased values for orbital volume of pulsation and the orbital blood pressure as well as with increased brachial blood pressure. Thus orbital vascular reactions during inhalation of carbon dioxide as substantiated by ophthalmodynamography (ODG) are similar to cerebral vascular reactions during inhalation of carbondioxide. In the same study, changes of oxygen partial pressures in the arterial blood were produced by oxygen inhalation. Increased paO2 values were always followed by increased values for orbital and brachial blood pressure and volume of pulsation. There is no correlation between the ODG findings during inhalation of oxygen and the effects of paO2 on the cerebral vessels.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 7 (1972), S. 126-128 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...