CONJUNCTIVAL OXYGEN-TENSION MEASUREMENTS FOR ASSESSMENT OF TISSUE OXYGEN-TENSION DURING PULMONARY SURGERY

Conjunctival oxygen tension (PcjO(2)) and routine cardiorespiratory pa rameters were measured in 8 patients during pulmonary surgery. In each patient we found a close relationship between PcjO(2) and arterial bl ood oxygen tension (PaO2), and for all patients the correlation coeffi cient was 0.962. The mean values of the ratio between PcjO(2) and PaO2 in each patient were ranging between 0.46 and 0.55. We conclude that PcjO(2) measurements represent a useful and reliable method for evalua tion of peripheral oxygenation and perfusion during pulmonary surgery. Furthermore, the method has been found useful for estimation of arter ial blood oxygen tension in hemodynamically stable patients during ane sthesia.