Technical report demonstrates simplified in situ venous cannula puncture recovers 400–600 ml of autologous blood during ECMO weaning, suggesting reduced need for donor transfusions.
Salvaging residual circuit blood upon extracorporeal membrane oxygenation (ECMO) discontinuation is a clinically valuable blood conservation strategy, mirroring standard cardiopulmonary bypass protocols. We describe a simplified technique using an 8F vascular sheath inserted into the venous cannula via the Seldinger technique. Post-weaning, crystalloid infusion displaces 400–600 ml of sequestered autologous blood back to the patient at low pump speeds. This “off-the-shelf” method requires no prior circuit modification, maintains system integrity, and effectively reduces transfusion needs. It offers a safe, reproducible, and cost-effective approach for perioperative blood preservation in ECMO patients.
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Yan et al. (2026) studied this question.
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