Transient severe aortic regurgitation and left ventricular dysfunction due to a stuck leaflet in a patient undergoing percutaneous transcatheter aortic valve implantation.

We report the case of a 78-year-old patient who underwent transcatheter aortic valve implantation. During the deployment, the leaflets of the implanted valve appeared to be stuck in calcium protruding from the native aortic leaflets, resulting in transient severe aortic regurgitation leading to cardiac arrest with successful cardiac resuscitation. Transient severe aortic regurgitation secondary to the mechanical failure of the deployed valve can lead to serious clinical consequences.