Utility of Adjunctive Impella Support to Venoarterial Extracorporeal Membrane Oxygenation for a Refractory Electrical Storm
Yusuke Akazawa, Haruhiko Higashi, Toru Miyoshi, Shinji Inaba, Osamu Yamaguchi

TL;DR
This case study shows how combining Impella support with VA-ECMO can help manage a severe heart condition unresponsive to standard treatments.
Contribution
The study presents a novel approach using Impella to reduce left ventricular strain during VA-ECMO in refractory electrical storms.
Findings
VA-ECMO alone increases left ventricular afterload and pressure.
Adding Impella support may improve outcomes by unloading the left ventricle.
The combination was effective in a case resistant to defibrillation.
Abstract
Venoarterial extracorporeal membrane oxygenation (VA-ECMO) stabilizes hemodynamics in an electrical storm leading to cardiogenic shock. However, adverse effects of VA-ECMO are increased left ventricular (LV) afterload and LV end-diastolic pressure due to retrograde blood return. These adverse effects could be ameliorated by LV unloading with Impella insertion. This case illustrates the possible efficacy of adjunctive Impella insertion for a refractory electrical storm that is resistant to defibrillation under mechanical support with VA-ECMO for cardiogenic shock.
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Taxonomy
TopicsCardiac Arrest and Resuscitation · Mechanical Circulatory Support Devices · Cardiac electrophysiology and arrhythmias
