56: Pressors, Fluid, or Flow – Optimizing ECMO Physiology

This podcast explores the physiological nuances of ECMO (Extracorporeal Membrane Oxygenation) management, particularly in cardiac arrest scenarios. It emphasizes the critical balance between restoring systemic perfusion and preventing complications like pulmonary edema and Harlequin syndrome. Key considerations include assessing left ventricular function recoverability, optimizing mean arterial pressure to facilitate ejection, and understanding the impact of ECMO flow on oxygen delivery versus using vasopressors. Marc Dickstein elucidates the importance of an ejecting heart to avoid thrombosis and the utility of tools like PA catheters and echocardiography in guiding volume status and preemptive interventions. Adjuncts like balloon pumps and Impella devices are discussed for their potential to reduce afterload and decompress the left ventricle, while VVA ECMO is considered as a solution for Harlequin syndrome.