Imaging for Patient's Selection and Guidance of LAA and ASD Percutaneous and Surgical Closure

JACC Cardiovasc Imaging. 2021 Jan;14(1):3-21. doi: 10.1016/j.jcmg.2019.06.032. Epub 2020 Jul 15.


This review comprises 2 main subjects: the percutaneous and surgical closure of the left atrial appendage (LAA) and atrial septal defect (ASD). The aim of the authors was to provide a detailed description of: 1) anatomy of LAA, normal interatrial septum, and the various types of ASD as revealed by noninvasive imaging techniques; 2) preprocedure planning of secundum ASD and LAA percutaneous closure; 3) key steps of the procedural guidance emphasizing the role of 2-dimensional/3-dimensional transesophageal echocardiography; and 4) surgical closure of LAA and ASD.

Keywords: atrial septal defect; left atrial appendage; percutaneous closure; surgical closure.

Publication types

  • Review

MeSH terms

  • Atrial Appendage* / diagnostic imaging
  • Atrial Fibrillation
  • Cardiac Catheterization
  • Echocardiography, Transesophageal
  • Foramen Ovale, Patent
  • Heart Septal Defects, Atrial*
  • Humans
  • Predictive Value of Tests
  • Treatment Outcome