What question did this study set out to answer?

The aim is to explore the efficacy of parallel dual-lumen venovenous ECMO following ECPR to address severe differential hypoxemia.

April 10, 2026

Parallel Dual-Lumen Venovenous Extracorporeal Membrane Oxygenation Following Extracorporeal Cardiopulmonary Resuscitation

Key Points

The aim is to explore the efficacy of parallel dual-lumen venovenous ECMO following ECPR to address severe differential hypoxemia.
Described two cases of parallel VV-ECMO post-ECPR using a dual-lumen bicaval cannula.
Decannulation of arterial support at 4 and 7 days, respectively.
Reconfiguration to high-flow VV-ECMO model after ECPR.
Both cases revealed successful management of differential hypoxemia.
Potential improvement in neurological outcomes was noted post-implementation of VV-ECMO.
This approach may serve as a viable alternative to hybrid VA-ECMO.

Abstract

Differential oxygenation may complicate extracorporeal cardiopulmonary resuscitation (ECPR) either due to the initial pathology or subsequent lung injury. The dual circulation phenomenon inherent to peripheral venoarterial extracorporeal membrane oxygenation (VA-ECMO) risks poorly oxygenated blood preferentially supplying the cerebral circulation. This may be deleterious to neurological outcomes and survival in this cohort. We describe two novel cases of parallel VV-ECMO support following ECPR, using a dual-lumen bicaval cannula to salvage severe differential hypoxemia. Decannulation of arterial support occurred at 4 and 7 days, respectively, with initial reconfiguration to high-flow VV-ECMO. This unique approach offers an attractive alternative to hybrid VAVECMO and may provide a necessary escalation following successful ECPR to facilitate neuroprotection. https://links.lww.com/ASAIO/B896

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Parallel Dual-Lumen Venovenous Extracorporeal Membrane Oxygenation Following Extracorporeal Cardiopulmonary Resuscitation

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