Use of Central Venous Oxygen Saturation to Guide Therapy
American Journal of Respiratory and Critical Care Medicine, 01/04/2011
Walley KR – The use of pulmonary artery catheters has diminished so that other technologies are emerging. Central venous oxygen saturation measurement, SCVo2, as a surrogate for mixed venous oxygen saturation measurement, SVo2, is simple and clinically accessible. In order to maximize the clinical utility of SCVo2 (or SVo2) measurement it is useful to review what the measurement means in a physiologic context, how the measurement is made, important limitations, and how this measurement may be helpful in common clinical scenarios. Compared to cardiac output measurement, SVo2 is more directly related to tissue oxygenation.