title: Non-obstructive membranes of the left atrial appendage.
abstract: The left atrial appendage (LAA) is a blind-ending, complex structure distinct from the body of the left atrium and is sometimes regarded as a minor extension of the atrium. However, it should routinely be analysed as part of a  transoesophageal echocardiographic examination. In this study we describe the presence of a non-obstructive membrane traversing the cavity of the LAA, found incidentally on transoesophageal echocardiography.
authors.affiliation: Istitute of Cardiology, University of Brescia, Spedali Civili Brescia, Italy. tbordonali@libero.it
authors.forename: Tania
authors.initials: T
authors.lastname: Bordonali
authors.forename: Alberto
authors.initials: A
authors.lastname: Saporetti
authors.forename: Enrico
authors.initials: E
authors.lastname: Vizzardi
authors.forename: Antonio
authors.initials: A
authors.lastname: D'Aloia
authors.forename: Ermanna
authors.initials: E
authors.lastname: Chiari
authors.forename: Livio
authors.initials: L
authors.lastname: Dei Cas
mesh_terms: D000368:Aged; D020517:Atrial Appendage / Q000648:ultrastructure*; D001281:Atrial Fibrillation / Q000150:complications / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D017548:Echocardiography, Transesophageal; D006331:Heart Diseases / Q000000981:diagnostic imaging / Q000209:etiology; D006801:Humans; D008297:Male; D008566:Membranes / Q000000981:diagnostic imaging; D013927:Thrombosis / Q000000981:diagnostic imaging / Q000209:etiology*