The left atrial appendage (LAA) 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.
heart.bmj.com/cgi/content/abstract/82/5/547
Left atrial appendage - Wikipedia, the free encyclopedia
The left atrial appendage (LAA) (left auricular appendix, auricula,
en.wikipedia.org/wiki/Left_atrial_appendage
Left atrial appendage occlusion - Wikipedia, the free encyclopedia
Left atrial appendage occlusion is a treatment strategy to prevent blood clot formation in atrial fibrillation (AF). In this heart rhythm disorder, blood clots form in the left atrial appendage (LAA)...
en.wikipedia.org/wiki/Left_atrial_appendage_occlusion
BACKGROUND: The study was conducted to evaluate the relationship of left atrial appendage function to left ventricular function and to analyze, if left ventricular dysfunction predisposed to left atrial appendage thrombus formation even in the presence of sinus rhythm. ... Atrial Appendage [physiology]
www.medscape.com/medline/abstract/15586736
Controversy exists regarding the effect of defibrination on spontaneous echo contrast and flow dynamics in left atrial appendage (LAA) in atrial fibrillation. ... Controversy exists regarding the effect of defibrination on spontaneous echo contrast and flow dynamics in left atrial appendage (LAA) in atrial fibrillation.
www.medscape.com/medline/abstract/10513780
The WATCHMAN Left Atrial Appendage System for Embolic PROTECTion in Patients With Atrial Fibrillation (PROTECT AF) study was designed to demonstrate the safety and efficacy of the WATCHMAN device in patients with nonvalvular AF who are eligible for long-term OAC.
stroke.ahajournals.org/cgi/content/abstract/38/2/624
The left atrial (LA) appendage is a common source of cardiac thrombus formation associated with systemic embolism. Transesophageal echocardiography allows a detailed evaluation of the structure and function of the appendage by two-dimensional imaging and Doppler interrogation of appendage flow.
content.onlinejacc.org/cgi/content/abstract/34/7/1867
May 27, 2009 ... Interest in nonsurgical closure of the left atrial appendage has spawned development ... The Watchman Left Atrial Appendage Closure Device. ...
content.nejm.org/cgi/content/full/360/25/2601
Perspective from The New England Journal of Medicine -- Left Atrial Appendage Occlusion -- Closure or Just the Beginning? ... Left Atrial Appendage Occlusion — Closure or Just the Beginning...
content.nejm.org/cgi/content/short/360/25/2601
The left upper pulmonary vein is adjacent to the left atrial appendage. They are separated by a fold of tissue which can be quite visible on both transthoracic and transesophageal echocardiography. A persistent left superior vena cava occupies this space when it is present.
www2.umdnj.edu/~shindler/appendage.html www2.umdnj.edu/~shindler/appendage.html
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