Impella 5.0 repositioning across the aortic valve without a guidewire
using rapid ventricular pacing: A case report
Abstract
Background Displacement of Impella 5.0 secondary to patient movement or
transportation is a well known complication. Typically, repositioning of
an Impella across the aortic valve is attempted over a guidewire. We
present the first case, to our knowledge, of repositioning a dislodged
Impella 5.0 without a guidewire under transesophageal echocardiography
(TEE) guidance, by inducing rapid ventricular pacing to cross the aortic
valve. Case presentation: A 70-year-old man with low left ventricular
ejection fraction underwent off-pump coronary artery bypass grafting
(OPCABG). On 2nd postoperative day a low cardiac output state developed
with increasing lactate levels and consequently the patient was taken to
the cardiac catheterization laboratory for insertion of an Impella 5.0.
Suddenly the Impella system failed with a rapid hemodynamic
deterioration and it was successfully bedside repositioned inducing
rapid ventricular pacing. Conclusions: In case of accidental Impella
dislodgement and fast deterioration of patient’s hemodynamic status,
rapid pacing may be an option to “open” the aortic valve thus aiding
quick replacement of Impella 5.0 through the aortic valve into the left
ventricle under TEE guidance.