Van Praagh S, O'Sullivan J, Brili S, Van Praagh R
Department of Cardiology, Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.
Am Heart J. 1996 Aug;132(2 Pt 1):391-402. doi: 10.1016/s0002-8703(96)90438-x.
Juxtaposition of the morphologically left atrial appendage (JLAA) was analyzed for the first time primarily morphologically, rather than primarily positionally. In a series of 18 postmortem cases, JLAA with solitus atria occurred in 16 (89%) cases, and JLAA with inversus atria was found in 2 (11%) cases. JLAA with solitus atria was always right-sided, whereas JLAA with inversus atria was left-sided. Thus the sidedness of the malposed (juxtaposed) LAA depended on the atrial situs, not on the type of ventricular loop (contrary to what was formerly thought). The anatomic features associated with JLAA are essentially the opposite of those with JRAA. JLAA was characterized by left atrial outlet obstruction (69%), left ventricular hypoplasia (67%), and aortic outflow tract obstruction (39%). JLAA usually has a hypoplastic left ventricle and normal conus, whereas JRAA typically has a hypoplastic right ventricle and abnormal conus.
首次主要从形态学而非主要从位置方面对形态学上的左心耳并置（JLAA）进行了分析。在一系列18例尸检病例中，心房位置正常时的JLAA出现在16例（89%）中，心房反位时的JLAA出现在2例（11%）中。心房位置正常时的JLAA总是位于右侧，而心房反位时的JLAA位于左侧。因此，错位（并置）左心耳的侧别取决于心房位置，而非心室襻的类型（与以前的观点相反）。与JLAA相关的解剖特征基本上与JRAA相反。JLAA的特征为左心房出口梗阻（69%）、左心室发育不全（67%）和主动脉流出道梗阻（39%）。JLAA通常有发育不全的左心室和正常的圆锥部，而JRAA典型地有发育不全的右心室和异常的圆锥部。
