Left atrial diverticulum
A left atrial diverticulum (LAD) refers to a pouch-like structure with a saclike shape with a broad-based ostium and a smooth contour to its body. They are considered an anatomical variant.
- some suggest that there may be a possible latent relationship between LA diverticulum and systemic embolic events during AF ablation 2.
Possible considerations include:
- 1. Abbara S, Mundo-Sagardia JA, Hoffmann U et-al. Cardiac CT assessment of left atrial accessory appendages and diverticula. AJR Am J Roentgenol. 2009;193 (3): 807-12. doi:10.2214/AJR.08.2229 - Pubmed citation
- 2. Nagai T, Fujii A, Nishimura K et-al. Large thrombus originating from left atrial diverticulum: a new concern for catheter ablation of atrial fibrillation. Circulation. 2011;124 (9): 1086-8. doi:10.1161/CIRCULATIONAHA.110.000315 - Pubmed citation
- 3. Peng LQ, Yu JQ, Yang ZG et-al. Left atrial diverticula in patients referred for radiofrequency ablation of atrial fibrillation: assessment of prevalence and morphologic characteristics by dual-source computed tomography. Circ Arrhythm Electrophysiol. 2012;5 (2): 345-50. doi:10.1161/CIRCEP.111.965665 - Pubmed citation