There are several endovascular options for temporary mechanical circulatory support in patients with refractory cardiogenic shock. These devices are often utilized in tandem to provide maximal support, including the combination of venoarterial extracorporeal membrane oxygenation with the Impella device, termed ECPELLA. An underappreciated characteristic of mechanical circulatory support is whether they provide cardiac "replacement" and/or cardiac "assistance." Within this framework, we propose an evolution in the approach to ECPELLA utilizing the Impella 5.5, with a focus on the Impella 5.5 as the primary support device.
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