Central venous oxygen saturation and carbon dioxide gap as resuscitation targets in a hemorrhagic shock
M. NÉMETH,K. TÁNCZOS,G. DEMETER,D. ÉRCES,J. KASZAKI,A. MIKOR,Z. MOLNÁR

 Acta Anaesthesiologica Scandinavica Volume 58, Issue 5, pages 611–619, May 2014

 In this SV-guided bleeding and fluid resuscitation model, both ScvO₂ and dCO₂ correlated well with changes in SV, but only the dCO₂ returned to its baseline, normal value, while ScvO₂ remained significantly lower than at baseline. These results suggest that dCO₂( venous-to-arterial carbon dioxide gap ) may be a good hemodynamic endpoint of resuscitation, while ScvO₂ is not strictly a hemodynamic parameter, but rather an indicator of the balance between oxygen delivery and consumption.