Left atrial appendage occlusion guided by intracardiac echocardiography in a patient with a 34 mm atrial septal defect occluder: a case report.

This case report illustrates the feasibility of LAAO performed with ICE guidance from the left atrium in a patient with a large Amplatzer Septal Occluder with a small native interatrial septum. It demonstrates that prior atrial septal defect closure should not be considered as a contraindication for LAAO but warrants careful preprocedural planning.