The improvement of arterial oxygenation during one-lung ventilation--effect of different CPAP levels.

Abstract

Authors studied different continuous positive airway pressure (CPAP) levels and their effect on arterial oxygenation during thoracic surgery. Surgical interference of CPAP was studied as well. No significant difference has been found at 4 cm, 7 cm and 10 cm H2O in the improvement of oxygen content during one-lung ventilation. In contract to the lowest CPAP level, 7 cm and 10 cm H2O made the surgical conditions significantly worse.