increased delta P is sign of increased clotting on ECMO

• related: ECMO extracorporeal membrane oxygenation
• tags: #permanent

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Delta P is membrane pressure drop, defined by difference in pressure of blood pre-membrane (ecmo) lung and post-membrane lung.

$\blacktriangle P=P_{Pre}-P_{Post}$

Normal delta P should be <50.¹ $\blacktriangle$P usually increases with time on ECMO. Gradual increase in $\blacktriangle$P is expected as result of fibrin accumulation..² Increased pressure could indicated proper anticoagulation or oxygenator replacement.¹

Links to this note

• ECMO extracorporeal membrane oxygenation
  • increased delta P is sign of increased clotting on ECMO

Footnotes

1. http://icuroom-futurearchive2.blogspot.com/2019/04/delta-p-on-ecmo.html ↩ ↩²

2. https://www.euroelso.net/home/about-pressure-drop/ ↩