Huge Interatrial Septum Aneurysm

Aneurysm of the Interatrial Septum and Mitral Valve Proplapse—An Aetiological Association?

Aneurysm of the interatrial septum and mitral valve prolapse-SUMMARY Mitral valve prolapse is common but aneurysm of the interatrial septum is rare. We report a case in which these two abnormalities of myocardial structure occurred and postulate a common aetiological mechanism.

Interatrial septal aneurysm with mitral valve prolapse in a patient with Marfan syndrome—a caveat of note

An interatrial septal aneurysm is a localized segment of the interatrial septum that bulges into either or both the left and right atrium [1,2]. The clinical importance of such an interatrial septal aneurysm is that itmay be confusedwith an atrial tumor [2], it may be the cause of supraventricular arrhythmias [3] and it has a strong association with cryptogenic stroke in the young [4]. A review...

A picture is worth a thousand words: giant aneurysm of the interatrial septum.

A closed interatrial septum aneurysm, filled with blood, mimicking a tumour in the right atrium.

We report the case of a 70-year-old woman with rheumatic mitral stenosis and a transient ischaemic attack. Transoesophageal echocardiography revealed a cystic mass in the right atrium, hanging to the interatrial septum by a pedicle, not circulating. The mass was heterogeneous and suggested a tumour (myxoma) or a thrombus. Surgical resection showed it was an interatrial septal aneurysm, closed o...

Windsock deformity of interatrial septum

Classical "Windsock deformity" is associated with ruptured aneurysmal sinus of Valsalva. The echocardiographic definition for Atrial septal aneurysm (ASA) in children based on dimensions is lacking. Rupture of an ASA, though uncommon, may lead to cardiac failure due to acute RV volume overload. An untreated ASA may be complicated with thrombus formation.