CHANGES IN ARTERIAL OXYGEN TENSION DURING ONE-LUNG ANAESTHESIA

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Abstract
While offering undoubtedly superior conditions for the thoracic surgeon and in many instances greater safety for the patient, “one-lung anaesthesia” has been generally reserved for so-called difficult or special cases. The reluctance to adopt the technique as a routine in anaesthesia for thoracic surgery is mainly attributable to the belief that unacceptable hypoxaemia results. The present work suggests that there is no evidence to suggest that the degree of hypoxaemia encountered is greater than that produced by surgical retraction and indeed oxygen levels are generally higher than the patient's resting level breathing air preoperatively.

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