Key result
A persistent left superior vena cava occurs in 0.5% of the normal population and 3% to 43% of patients with congenital heart anomalies.
Persistent left superior vena cava is associated with congenital heart anomalies and potential abnormalities of the cardiac conduction system.
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Alerts clinicians to PLSVC in congenital cases during interventions; leaves conduction risks and screening value open.
The embryological development of the superior vena cava (SVC) is complex. If the left common cardinal vein fails to occlude it can, along with the left duct of Cuvier form a left SVC, which frequently drains into the coronary sinus. This may result in abnormalities in the anatomy of this structure. A persistent left SVC occurs in 05% of the normal population, and 3% to 43% of patients with congenital heart anomalies.
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David Morgan (2002) studied Anomalies of cardiac venous drainage. A persistent left superior vena cava occurs in 0.5% of the normal population and 3% to 43% of patients with congenital heart anomalies.
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