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The Lab

Intervention workflows

How do I use V-A ECMO and the Impella models?

Select device flow in Mechanical support and inspect the native/device contributions.

Overview

Mechanical support contains V-A ECMO, Impella 2.5, Impella CP and Impella 5.0. The selector uses illustrative flow targets in L/min, not device-console P-levels or guaranteed clinical flows.

The summary separates native heart and device contributions. Device flow is limited by filling, pressure head and selected valve severity. Mild stenosis does not inherit the severe lesion’s full obstruction penalty. Significant aortic regurgitation reduces useful forward support through recirculation and can worsen LV loading. Displayed effective flow is illustrative, not a manufacturer pump curve.

Read the Support physiology explanation and paused device reference. The model includes selected loading and contraindication interactions but does not simulate cannulation technique, anticoagulation or every complication.

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