Surgical Correction of Common Atrium without Noncardiac Congenital Anomalies

Abstract

Long-term survival after surgical correction of CA is good. Routine closure of a cleft in the mitral valve is very important for successful surgery.

Guidelines for the Echocardiographic Assessment of Atrial Septal Defect and Patent Foramen Ovale: From the American Society of Echocardiography and Society for Cardiac Angiography and Interventions

“…Rarely, all components of the atrial septum, including the septum primum, septum secundum, and AV canal septum are absent, resulting in a common atrium. 28,[40][41][42] This is typically seen in association with heterotaxy syndrome. Some remnants of tissue might still be present in these patients.…”

Well-Tolerated and Undiscovered Common Atrium until Late Adulthood

“…Since then, common atrium occasionally has been reported as a cardiac component in patients with Ellis-van Creveld syndrome, trisomy 21, or heterotaxy syndrome with asplenia, whereas it is rare in nonsyndromic patients. 3) 5) 6) The hemodynamic features of shunting in common atrium are very similar to those of a large atrial septal defect. However, in patients with common atrium, pulmonary and systemic venous blood tend to mix more easily, and systemic arterial oxygen saturation tends to be lower than in those with a large atrial septal defect.…”

“… 1) 2) Common atrium is characterized by complete absence of the interatrial septum, and is commonly accompanied by malformation of the atrioventricular valve. 3) Most patients with common atrium experience symptoms during childhood. However, we describe a patient with common atrium who experienced his first obvious symptom at 48 years of age.…”

Single Atrium- A Case Report

“…For reconstruction of a new atrial septum two suturing methods are used. 7 In the first method: the patch was sutured to the base of the mitral anterior valve, and then gradually shifted to the posterior wall of the left atrium and the remaining border of the atrial septum via the posterior border of the coronary sinus. Suture line used in the second method is that the patch was sutured from the middle of the ventricular septal crest, upward to the tricuspid septal valve annulus, and downward to the base of the tricuspid septal valve, to the borderline between the tricuspid septal leaflet and the anterior leaflet, and then via the lateral side or left inner side of the coronary sinus to the wall of the right atrium and the remaining border of the atrial septum.…”