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Arterial hypoxaemia
  1. R. M. M. Fordham,
  2. Leon Resnekov
  1. Department of Anaesthetics, St. Thomas' Hospital, London, S.E.1
  2. Institute of Cardiology, National Heart Hospital, London, W.1

    A side-effect of intravenous isoprenaline used after cardiac surgery


    Intravenous administration of isoprenaline following cardiac surgery has been shown to cause an increase in existing arterial hypoxaemia. This is considered to be due to an increase in venous admixture following interference with the normal compensatory mechanism which in the presence of alveolar hypoxia tends to maintain normal ventilation-perfusion relationships.

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