Atrial Septal Aneurysm in Adult Patients

195 adult patients with atrial septal aneurysm (ASA) defined by TEE as protrusion >10 mm beyond the plane of the atrial septum, mean age 54.6 +/- 16.0 years. Excluded: mitral stenosis or prosthesis, prior cardiothoracic surgery involving the atrial septum.

Transesophageal echocardiography (TEE)

Transthoracic echocardiography (TTE) for diagnosis; patients without previous cardiogenic embolism for morphological comparison

Morphological characteristics of ASA, incidence of ASA-associated abnormalities, and association with previous events compatible with cardiogenic embolismsurrogate