Continuous measurement of arterial oxygen tension during one-lung anaesthesia. A new type of polarograhic oxygen electrode.

A new type of intra-arterial oxygen electrode was evaluated. In 14 patients, undergoing one-lung ventilation for thoracic surgery, the electrode was inserted into the radial artery and changes in PaO2 were recorded continuously. Methods of improving PaO2 during one-lung ventilation were demonstrated.