Arterial O2-Partial Pressure at Positve Endexpiratory Pressure in Hyperoxia for Verification of Patent Foramen Ovale?

  • Ludwig Brandt
  • Friedrich Mertzlufft
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 277)


As a rule, during anaesthesia a time dependent increase in pulmonary shunting occurs even in states of normal lung function. Therefore positive end-expiratory pressure ventilation (PEEP) is often used to decrease intrapulmonary right/left shunting (RL shunt) and thus to increase arterial O2 partial pressure (paO2) without increasing the inspiratory oxygen fraction.


Left Atrium Left Atrial Pressure Contrast Echocardiography Interatrial Septum Posterior Cranial Fossa 
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Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • Ludwig Brandt
    • 1
  • Friedrich Mertzlufft
    • 1
  1. 1.Department of Anaesthesiology, University HospitalJohannes Gutenberg University MainzMainzGermany

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