Key result
Persistent left superior vena cava occurs in ~0.5% of individuals without congenital cardiac disease.
Why the study?
The prevalence and diagnosis of persistent left superior vena cava (PLSVC) require clarification, especially in relation to associated cardiac defects.
Saline contrast echocardiography is a diagnostic tool for persistent left superior vena cava, a congenital anomaly present in up to 10% of patients with other cardiac defects.
Alerts clinicians to PLSVC frequency in congenital cohorts; leaves open prospective validation of contrast echo screening.
The prevalence of persistent left superior vena cava (PLSVC) has been estimated to be 0.5% in the absence of other congenital cardiac disease and 3–10% when associated with other cardiac defects. PLSVC does not affect the normal circulation because the systemic venous return enters the right heart chambers, usually through a dilated …
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Petronzelli et al. (2008) studied this question. Persistent left superior vena cava has an estimated prevalence of 0.5% in the absence of other congenital cardiac disease and 3-10% when associated with other cardiac defects.
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