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Updated: May 17, 2026

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
Published on: February 8, 2022
Double inter-atrial septum: a rare cause of cardioembolic stroke
Daniel Robaei1, Stefan Buchholz, Michael Feneley
1St Vincent's Hospital, Sydney, Australia. daniel.robaei@gmail.com
Abstract:
Double inter-atrial septum is an exceedingly rare congenital cardiac abnormality. We describe a case of transient ischaemic attack in a 53 year-old female found to have double inter-atrial septa on transthoracic and transoesophageal echocardiography. The midline inter-atrial chamber enclosed by the two septa was found to be continuous with the left atrium, with stasis in this accessory chamber predisposing to thrombus formation and cardio-embolic events. The case highlights the importance of transoesophageal echocardiography in the investigation of stroke, particularly in younger individuals.
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