Percutaneous oxygenated right ventricular assist device for pulmonary embolism: A case series

Acute right ventricular (RV) failure following massive pulmonary embolism (PE) can have significant hemodynamic consequences and is the mode of death. Temporary mechanical circulatory support can provide tissue perfusion required while thrombectomy or lysis-aimed therapies act to relieve the thrombotic obstruction. Veno-arterial extracorporeal membrane oxygenation (V-A ECMO) has conventionally been the first line MCS. A more selective approach to RV support has been advocated in the form of an extracorporeal right ventricular assist device (RVAD) as it mitigates some of the shortcomings of V-A ECMO. We present the first case series of four patients who received fully percutaneous RVAD, with an integrated oxygenator forming an Oxy-RVAD, for selective right heart support following massive PE, including the application of single-access dual-lumen right atrium to pulmonary artery cannula. All patients achieved RV recovery and were successfully weaned from oxy-RVAD support within 5-10 days demonstrating the feasibility of selective percutaneous right heart support in managing these challenging patients.