Value of ScvO2 Monitoring in PICU - The Canadian Association of ...
Value of ScvO2 Monitoring in PICU - The Canadian Association of ...
Value of ScvO2 Monitoring in PICU - The Canadian Association of ...
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SvO 2 or ScvO 2: What’s the difference?<br />
• PA catheter or central l<strong>in</strong>e<br />
• Global or regional<br />
– SvO 2 represents mixed venous blood from:<br />
• SVC ≅ 70%<br />
• CS ≅ 37%<br />
• IVC ≅ 80%<br />
– <strong>ScvO2</strong> represents blood return<strong>in</strong>g from upper or<br />
lower body (depend<strong>in</strong>g on site)<br />
• Normal values:<br />
– SvO 2 (60-80%)<br />
– ScvO 2 (70-75%)<br />
• ScvO 2 usually runs ~7% higher than SvO 2<br />
• Difference can widen <strong>in</strong> shock states when<br />
perfusion redistribution occurs
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