Using Multimaterial 3-Dimensional Printing for Personalized Planning of Complex Structural Heart Disease Intervention

A 56-year-old woman presented with dyspnea 6 months after percutaneous closure of atrial septal defect with a Cocoon Septal Occluder. Transesophageal echocardiography revealed partial device prolapse and recurrent left-to-right interatrial shunt through a crescent-shaped, tunnel-like peridevice