Congenital Complete Heart Block A Case Report

Congenital complete heart block or thirddegree congenital atrioventricular block (CAVB) is seen in a fetus or in a neonate younger than 28 days. CAVB can occur in a structurally normal heart (isolated CAVB) or with congenital heart disease (complex CAVB with congenital heart defects). Congenital complete heartblock occurs in approximately 1 per 15,000- 20,000 live births. Structural congenital heart block is rare, but with a higher proportion of fetal loss. Patients with isolated CAVB typically have a better overall outcome than do infants with complex structural cardiac defects and or ventricular dysfunction.