Left atrial appendage
Updates to Article Attributes
Body
was changed:
The left atrial appendage (LAA) part is a pouch-like projection from the main body of the left atrium.
Pathology
Embryology
It is derived from the left wall of the primary atrium, which forms during the fourth week of embryonic development. It has developmental, ultrastructural, and physiological characteristics distinct from the left atrium proper.
Morphological types
Four main morphological types have been described
- cactus: 30%
- chicken wing: 48%
- windsock: 19%
- cauliflower: 3%.
Practical points
It can be source of source of more than 90% of cardiac-based emboli.
See also
-<p>The<strong> left atrial appendage (LAA)</strong> part of the <a href="/articles/left-atrium-1">left atrium</a>.</p><h4>Pathology</h4><h5>Embryology</h5><p>It is derived from the left wall of the primary atrium, which forms during the fourth week of embryonic development. It has developmental, ultrastructural, and physiological characteristics distinct from the left atrium proper.</p><h5>Morphological types</h5><p>Four main morphological types have been described</p><ul>- +<p>The<strong> left atrial appendage (LAA)</strong> is a pouch-like projection from the main body of the <a href="/articles/left-atrium-1">left atrium</a>.</p><h4>Pathology</h4><h5>Embryology</h5><p>It is derived from the left wall of the primary atrium, which forms during the fourth week of embryonic development. It has developmental, ultrastructural, and physiological characteristics distinct from the left atrium proper.</p><h5>Morphological types</h5><p>Four main morphological types have been described</p><ul>
References changed:
- 4. Beigel R, Wunderlich NC, Ho SY et-al. The left atrial appendage: anatomy, function, and noninvasive evaluation. JACC Cardiovasc Imaging. 2014;7 (12): 1251-65. <a href="http://dx.doi.org/10.1016/j.jcmg.2014.08.009">doi:10.1016/j.jcmg.2014.08.009</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/25496544">Pubmed citation</a><span class="auto"></span>