Value of ScvO2 Monitoring in PICU - The Canadian Association of ...

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Has been considered a surrogate for cardiac output / index in pediatrics Tibby et al Arch Dis Child 2003
“Adequate” oxygenation can only be defined when tissue O 2 supply matches tissue O 2 demand Usually consumption (VO 2) independent of delivery (DO 2) DO 2I= CO x SaO 2 x Hgb x 1.34 x 10 = 650 + 50 ml/min/m 2 VO 2I= CO x (SaO 2-SvO 2) x Hgb x 1.34 x 10 = 120-200 ml/min/m 2 If VO 2 increases or DO 2 decreases, tissue oxygenation is maintained by increasing oxygen extraction O 2ER = VO 2/DO 2 x 100 = 25 + 2% If DO 2 drops below a critical level, oxygen extraction becomes exhausted resulting in VO 2 dependent on DO 2 or oxygen debt Tissue hypoxia occurs! Note: O 2ER increases well before lactate begins to accumulate
Page 1 and 2: The Value of Continuous ScvO 2 Moni
Page 3 and 4: Objective The goal in PICU is to ma
Page 5 and 6: Reflection vs Transmission Spectrop
Page 7 and 8: Using continuous ScvO 2 monitoring
Page 9 and 10: Uncorrected imbalances • Shift in
Page 11 and 12: ScvO 2 Oxygen Delivery Oxygen Consu
Page 13: Regional oxygen saturation from upp
Page 17 and 18: Factors to be considered in Oxygena
Page 19 and 20: Normal O O2 ER DO 2 O 2ER may incre
Page 21 and 22: Oxygen Saturation Values Site Acyan
Page 23 and 24: When is Change Significant? • Cha
Page 25 and 26: Causative Factors Increased O 2 con
Page 27 and 28: Understanding the clinical signific
Page 29: Thank You! “Hypoxia not only stop

Value of ScvO2 Monitoring in PICU - The Canadian Association of ...

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