Extracorporeal membrane oxygenation‐assisted emergency percutaneous treatment of left ventricular assist device graft occlusion

Abstract

Abstract End‐stage heart failure is more often treated with Implantable left ventricular assist device (LVAD), even if the prolonged use may increase the risk of complications. In this case, a 51‐year‐old male patient presented to our emergency department showing acute heart failure signs and symptoms and a dramatic reduction of LVAD flow. Laboratory tests ruled out significant haemolysis, usually associated with pump thrombosis. The echocardiogram and the computed tomography were not able to clarify the correct diagnosis. We immediately placed a veno‐arterial extracorporeal membrane oxygenation, followed by a selective retrograde angiography of the pump. The images showed stenosis of the LVAD‐outflow graft, suggesting a twist. Through a hand‐made J‐tip guidewire, we performed multiple dilatations of the occlusion using peripheral balloons. Finally, we implanted an aortic coarctation covered‐stent, re‐establishing an adequate cardiac output to the patient. Our case indicates that catheter‐based approach in extracorporeal membrane oxygenation assistance provides an important therapeutic alternative to treat outflow graft stenosis, especially in the case of acutely unstable patient.

Keywords

• Heart failure
• Heart transplantation
• Ventricular assist device
• Outflow graft obstruction
• Extracorporeal membrane oxygenation