Tasty Morsels of Critical Care Tasty Morsels of Critical Care 076 | VV ECMO
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Jan 8, 2024 This podcast discusses VV ECMO, a therapy used in intensive care to support patients with compromised lung function. It explores the process of removing blood from the veins, oxygenating it, and returning it, as well as the challenges in drainage and pipe placement. The chapters cover factors to consider, indications for use, and the role of VVECMO in treating hypoxia and struggling right ventricles.
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How VV ECMO Works
- VV ECMO diverts venous blood to an artificial lung to oxygenate and remove CO2.\n- Oxygenation depends on capturing a significant proportion of venous return for oxygenation.
Cannula and Blood Flow Tips
- Use large bore cannulas (23-27 French) in large vessels for sufficient blood drainage.\n- Avoid excessive negative pressure to prevent vessel collapse and loss of drainage.
Avoiding Recirculation in VV ECMO
- Returning oxygenated blood to venous circulation must be done away from drainage site.\n- This prevents recirculation and maximizes effective oxygenation delivery.