A 58-year-old white male with a history of stroke and deep vein thrombosis presented with an interatrial intraseptal mass. Cardiac-computed tomography demonstrated a thin-walled, well-demarcated cyst in the inferior border of the fossa ovalis protruding into both atria. Removal of the interatrial intraseptal cyst was performed using a minimally invasive three-dimensional endoscopic periareolar approach.
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The interatrial septum (IAS), a fibromuscular structure separating the right (RA) and left (LA) atrium, plays an important role in both intra- and interatrial conduction. Electropathological changes in the IAS such as discordant activation of the right and left septal layer and conduction disorders may facilitate intraseptal re-entry and promote development of atrial tachyarrhythmias such as atrial fibrillation (AF). Various experimental studies have emphasized the importance of the IAS in AF initiation and perpetuation.
View Article and Find Full Text PDFA 58-year-old white male with a history of stroke and deep vein thrombosis presented with an interatrial intraseptal mass. Cardiac-computed tomography demonstrated a thin-walled, well-demarcated cyst in the inferior border of the fossa ovalis protruding into both atria. Removal of the interatrial intraseptal cyst was performed using a minimally invasive three-dimensional endoscopic periareolar approach.
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Laboratoire d'Energétique et de Cardiologie Cellulaire, INSERM, Faculté de Pharmacie, Dijon, France.
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