Abstract
Cor triatriatum is a rare congenital heart defect in which the left or right atrium of the heart is divided into two compartments by a membrane, resulting in a triatrial heart. Cor triatriatum sinister is a condition characterized by the presence of a membrane in the left atrium (LA). This membrane restricts the orifice, leading to an obstruction of pulmonary venous drainage. Consequently, pulmonary arterial and venous hypertension can occur, potentially resulting in congestive heart failure. In this condition, a membrane tissue divides the left atrium (LA) into two parts. The proximal chamber is located super posteriorly, while the distal chamber, where the mitral valve and left atrial appendage are situated, is positioned anteroinferiorly [1].
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References
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Shiraishi H, Silverma NH. Echocardiographic spectrum of double inlet ventricle: evaluation of the interventricular communication. J Am Coll Cardiol. 1990;15:1401–8.
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Norwood WI. Hypoplastic left heart syndrome. Cardiol Clin. 1989;7:377–85.
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Tsai, SK., Wang, JK., Chen, SJ. (2023). Cardiac Chamber Anomalies. In: Transesophageal Echocardiography in Pediatric Congenital Cardiac Surgery and Catheter Intervention. Springer, Singapore. https://doi.org/10.1007/978-981-99-6582-3_6
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DOI: https://doi.org/10.1007/978-981-99-6582-3_6
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