Septo Atrial – ABC CARDIOL

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Review Article

The Role of Echocardiography in the Assessment of the Interatrial Septum and Patent Foramen Ovale as an Emboligenic Source

Angele Azevedo Alves Mattoso et al. Joberto Pinheiro Sena Viviane Tiemi Hotta

Abstract

Atrial septal defects (ASD) account for approximately 6%-10% of congenital heart defects, with an incidence of 1 in 1,500 live births.¹ Patent foramen ovale (PFO) is more common and is present in more than 20%-25% of adults.² Clinical syndromes associated with ASD and PFO are variable, and their implications are targeted by pediatric and adult medicine, neurology, and surgery.

Additional interest in the anatomy of the interatrial septum (IAS) has increased substantially over the last two decades. Additionally, percutaneous procedures involving left-sided structural heart disease and electrophysiological procedures have evolved considerably. Ideally, these catheter-based interventions require a direct route to the left atrium (LA) through the IAS, with a full understanding of its anatomy. Also, sophisticated and noninvasive imaging technologies such as two-dimensional transesophageal echocardiography (2D-TEE) and three-dimensional transesophageal echocardiography (3D-TEE), cardiac magnetic resonance imaging (CMR), and computed tomography (CT) have evolved considerably, providing anatomical details of cardiac structures visualized in 2D and 3D format and being key for the diagnosis and treatment of patients with heart diseases.

Therefore, assessing the anatomy of the IAS and any abnormalities requires a standardized and systematic approach, integrating diagnostic modalities and enabling adequate and consistent evaluation for both surgical and transcatheter therapies.

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The Role of Echocardiography in the Assessment of the Interatrial Septum and Patent Foramen Ovale as an Emboligenic Source

Abstract

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