Left Atrial Thrombus-Are All Atria and Appendages Equal?

Interv Cardiol Clin. 2022 Apr;11(2):121-134. doi: 10.1016/j.iccl.2021.11.005. Epub 2022 Mar 10.

Abstract

Although the left atrial appendage (LAA) seems useless, it has several critical functions that are not fully known yet, such as the causes for being the main origin of cardioembolic stroke. Difficulties arise due to the extreme range of LAA morphologic variability, making the definition of normality challenging and hampering the stratification of thrombotic risk. Furthermore, obtaining quantitative metrics of its anatomy and function from patient data is not straightforward. A multimodality imaging approach, using advanced computational tools for their analysis, allows a complete characterization of the LAA to individualize medical decisions related to left atrial thrombosis patients.

Keywords: Appendage occlusion; Atrial fibrillation; Atrial thrombosis; Computational tools; Left atrial appendage.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Atrial Appendage* / diagnostic imaging
  • Atrial Appendage* / surgery
  • Atrial Fibrillation* / complications
  • Heart Atria / diagnostic imaging
  • Heart Diseases* / diagnosis
  • Heart Diseases* / surgery
  • Humans
  • Thrombosis* / diagnosis
  • Thrombosis* / etiology