Amulet device implantation following incomplete left atrial appendage closure with Watchman legacy device

Abstract Peri‐device leak after left atrial appendage closure (LAAC) is often treated with endovascular coils, plugs, or second occluders. This is the first study reporting the Amulet device used for peri‐device leak. An 80‐year‐old male with paroxysmal atrial fibrillation and recurrent falls with head trauma who underwent LAAC with a 24 mm Watchman 2.5 device 3 years ago at another institution was referred to our clinic for management of the peri‐device leak. Transesophageal echocardiogram showed persistent residual peri‐device leak with 5 mm width along the Coumadin ridge aspect of the device. Computed tomography (CT) also showed the peri‐device leak with width of 6 mm and complete opacification of left atrial appendage (LAA). Importantly, CT demonstrated that the Watchman 2.5 device was deployed at distal LAA, leaving the proximal part of LAA with length of 10 mm from ostium. Under general anesthesia, a 22 mm Amulet device was deployed successfully with complete sealing of LAA. Procedure planning is the key to minimize the risk of peri‐device leak or device‐related thrombosis. Careful assessment of LAA anatomy using multimodality images for peri‐device leak after LAAC helped optimal treatment strategy including second LAAC with different type of devices.