Hiroki Niikura1, MD; Marcus Burns1, DNP; Richard Bae1, MD; Paul Sorajja1, MD
1. Valve Science Center at the Minneapolis Heart Institute Foundation, Abbott Northwestern Hospital, Minneapolis, MN, USA
Figure 1. Transcatheter mitral valve repair after prior MitraClip therapy and atrial septal defect closure. A) Transoesophageal echocardiography (TEE) showing prior atrial septal occluder (ASO) and no space posterior to the ASO for safe transseptal puncture. B) Fluoroscopy showing a transseptal puncture through an ASO (arrow). C) Fluoroscopy showing predilatation with 12 × 40 mm balloon (arrow). D) TEE with three-dimensional (3D) imaging shows a steerable guide catheter through the ASO (arrow). E) Fluoroscopy showing deployment of an additional clip (arrow) through the ASO. F) TEE showing trivial MR (arrows) after additional clips. G) 3D-TEE showing new iatrogenic defect (arrow). H) ...