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  • Title: Computed tomography features of cor triatriatum: an institutional review.
    Author: Goel A, Viswamitra S, Reddy BN, Gaduputi J.
    Journal: Br J Radiol; 2021 Mar 01; 94(1119):20201252. PubMed ID: 33400560.
    Abstract:
    OBJECTIVES: Cor Triatriatum is a rare anomaly that can either involves the left atrium (Cor Triatriatum Sinister-CTS) or the right atrium (Cor Triatriatum Dexter- CTD). Preoperative identification of this anomaly is important in determining patient treatment course. The objective of this paper is to understand imaging findings, classification and to familiarise the reader with other associated congenital cardiac anomalies that influence patient management. METHODS: From the hospital electronic health records (EHR) database, we identified 10 patients of Cor Triatriatum out of 974 patients who underwent cardiac CT between 15 July 2014 and 20 March 2020 for congenital heart disease. Medical records and imaging findings were reviewed retrospectively. RESULTS: Out of 10 patients, nine patients had CTS (90%) and only one patient had CTD (10%). Five out of nine patients (55.5%) had CTS type II and four (44.4%) had CTS type III. The mean of the membrane orifices in CTS type III was 18.5 mm and was 5.78 mm in CTS type II. Pulmonary veins were dilated in all patients of CTS type II (62.5%), two patient of CTS type III (25%) and in only patient with CTD (12.5%). Ostium secundum atrial septal defect was the most common (66%) associated cardiac anomaly, followed by ventricular septal defect (44%). CONCLUSIONS: CT allows excellent pre-operative evaluation of Cor Triatriatum and associated cardiac anomalies. ADVANCES IN KNOWLEDGE: CT is excellent in making a diagnosis and classifying Cor Triatriatum and for identification of cardiac anomalies and complications associated with it.
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