title: [Atrial septal aneurysm and paroxysmal atrial fibrillation].
abstract: A 48-year-old man was admitted because of treatment-resistant, paroxysmal atrial fibrillation. Transthoracic, 2-dimensional echocardiography revealed a "mass" within the left atrium, thought to be a tumor. Transesophageal echocardiography showed it to be an atrial septal aneurysm. There is a relationship between atrial septal aneurysm and atrial supraventricular tachyarrhythmias and systemic emboli.
authors.affiliation: Dept. of Medicine F and Heart Institute, Chaim Sheba Medical Center, Tel Hashomer.
authors.forename: A
authors.initials: A
authors.lastname: Livneh
authors.forename: P
authors.initials: P
authors.lastname: Langevitz
authors.forename: Z
authors.initials: Z
authors.lastname: Vered
mesh_terms: D001281:Atrial Fibrillation / Q000150:complications*; D003937:Diagnosis, Differential; D017548:Echocardiography, Transesophageal; D006322:Heart Aneurysm / Q000000981:diagnostic imaging*; D006325:Heart Atria / Q000000981:diagnostic imaging; D006338:Heart Neoplasms / Q000175:diagnosis; D006346:Heart Septum / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged