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Hypoxaemia during cardiopulmonary bypass
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  1. A. L. Muir,
  2. I. A. Davidson
  1. Departments of Medicine and Anaesthetics, The University of Edinburgh
  2. The Royal Infirmary of Edinburgh

    Abstract

    Blood oxygenation was studied in patients undergoing cardiopulmonary bypass using the Rygg-Kyvsgaard bubble oxygenator. Oxygenation was satisfactory in perfusions carried out at normothermia and during hypothermia. During the rewarming phase of hypothermic perfusions hypoxaemia occurred. This could be prevented by a ganglion blocking agent (trimetaphan) given during the cooling phase.

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