Keywords: EMI, electromagnetic interference; Electromagnetic interference; Heart failure; Hemodynamic instability; ICD, implantable cardioverter defibrillator; LAO, left anterior oblique; LVEF, left ventricular ejection fraction; Magnetic navigation; PVAD, percutaneous ventricular assist device; RAO, right anterior oblique; SMN, Stereotaxis magnetic navigation; TH, TandemHeart; VT, ventricular tachycardia; Ventricular tachycardia.