ASD Occluder Used to Close a Mustard Baffle Leak.

Baffle leaks are a known complication of the atrial switch for D-looped transposition of the great arteries. A 46-year-old woman with D-looped transposition of the great arteries who underwent an atrial switch (Mustard) presented with a hemodynamically significant baffle leak in close proximity to the systemic tricuspid valve. This report details the first-in-human percutaneous closure of a large baffle leak using a newest generation closure device, the GORE CARDIOFORM ASD Occluder (GCA). Baffle leaks are traditionally managed with either surgery or percutaneously with catheter-based devices. The location of the leak in this case was close to the tricuspid valve, and so the newer, softer GCA device was used. This is the first-in-human percutaneous closure of a baffle leak after an atrial switch using the GCA device. The GCA is the newest generation of closure devices that may convey an advantage over previous technology when closing leaks adjacent to important cardiac structures.