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Complete A-V block: incidental or a part of cor triatriatum dexter
1Koşuyolu Heart, Education & Research Hospital, Cardiology Clinic, Istanbul-TR, Turkey.
Insights
Cor triatriatum dexter (CTD) is a rare heart defect where the right atrium is split by a membrane. This case highlights CTD associated with complete atrioventricular block.
Area of Science:
- Cardiology
- Congenital Heart Disease
- Cardiac Anatomy
Background:
- Cor triatriatum dexter (CTD) is an exceptionally rare congenital cardiac anomaly.
- It involves the division of the right atrium into two chambers by a persistent membrane, stemming from the right valve of the sinus venosus.
- CTD often coexists with other abnormalities of the right heart.
Observation:
- The clinical presentation and necessity for intervention in CTD depend on membrane fenestrations, associated anomalies, and arrhythmias.
- This report details a specific case involving a patient diagnosed with CTD.
Findings:
- The patient presented with a coexisting condition of complete atrioventricular (A-V) block.
- The interplay between CTD and complete A-V block was observed.
Implications:
- Understanding CTD's association with arrhythmias like complete A-V block is crucial for diagnosis and management.
- This case contributes to the limited literature on CTD, particularly its complex presentations.
- Further research into CTD and associated conduction abnormalities may improve patient outcomes.
Abstract:
Cor triatriatum dexter (CTD) is an extremely rare cardiac anomaly in which the right atrium is divided into two distinct chambers by a membrane. The persistence of the right valve of sinus venosus results in a complete septation of the right atrium. This anomaly is frequently associated with other right-sided cardiac abnormalities. Its clinical manifestation and the need for intervention are determined by the number and the size of the fenestrations on the membrane, associated cardiac anomalies and arrhythmias. We describe a case of CTD in a patient with complete atrioventricular (A-V) block.
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