Rapid Aneurysmal Degeneration of CorMatrix Patch Following Coarctation Repair.

We present a case of rapid aneurysmal degeneration and pseudoaneurysm formation following a coarctation repair that utilized an acellular extracellular matrix (ECM) patch. Patch excision and aortic arch reconstruction using aortic homograft were performed. The child recovered without complications. This case questions the durability of ECM patches in arterial reconstruction.