As an ECMO specialist, I often find myself dealing with a variety of terms used to describe ECMO circuit components. I found out that different centers, teams, and even individual providers may use different language for the same part of the ECMO circuit. To ensure clear communication and avoid confusion, it’s helpful to recognize the most commonly used terms and be aware of less common alternative names.
ECMO Drainage vs. Return: What’s the Difference?
The ECMO circuit consists of two primary functions: drainage and return.
Drainage: Deoxygenated blood is withdrawn from the patient into the ECMO circuit, usually via a venous cannula.
Return: Oxygenated blood is returned to the patient via a vein (VV-ECMO) or an artery (VA-ECMO).
There are many names for these functions, so I compiled a chart to clarify the most commonly used terminology, along with less common alternatives.
Why Does This Matter?
Clear communication is critical in ECMO management. If team members use different terminology, it can lead to misunderstandings during patient handoffs, troubleshooting, and emergencies.
The most commonly used terms align with ELSO guidelines and ECMO specialist training manuals.
The less common terms may still be used in certain ECMO centers, among perfusionists, or in specialized discussions.
If you work in an ECMO center that uses alternative terms, it’s worth clarifying and ensuring everyone on the team understands the same terminology.
Final Thought:
Whether you’re new to ECMO or a seasoned specialist, having a clear grasp of ECMO circuit terminology ensures effective collaboration and patient safety. If you’re ever unsure, ask for clarification—communication is just as important as technical skills in ECMO care!
Learn more
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I built a Custom GPT, AI ECMO Educator. It is free to use and provides evidence-based ECMO and ECPR guidance for ICU clinicians and trainees, covering physiology, cannulation, anticoagulation, circuit management, and troubleshooting. Built on sources like ELSO, PubMed, AmSECT, and leading centers. Version 5.2 | Supports 50+ languages.
Disclaimer
This content is for educational purposes only and does not replace clinical judgment, institutional protocols, or consultation with your ECMO team.