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Atrial septal defect with cyanosis without pulmonary hypertension or anomalous systemic venous drainage to the left
International Journal of Cardiology
|December 1, 1988
Insights
A rare case of cyanosis in a 29-year-old was caused by a right-to-left shunt through an atrial septal defect and anomalous left superior caval vein. Surgical correction resolved the cyanosis, highlighting the importance of anatomical understanding.
Area of Science:
- Cardiology
- Congenital Heart Disease
- Medical Case Reports
Background:
- Cyanosis in adults can stem from complex congenital heart defects.
- Right-to-left shunts alter normal blood oxygenation.
- Anomalous venous connections can predispose to intracardiac shunting.
Abstract:
A case of a 29-year-old patient with cyanosis due to a right-to-left shunt is reported. This patient presented an atrial septal defect within the oval fossa and an anomalous left superior caval vein. The direction of this shunt is explained by the anatomical relationship between the oval fossa and the dilated coronary sinus, draining venous blood into the left atrium across the atrial septal defect. Cyanosis disappeared after surgical correction of the defect.