Is coarectation if the aorta severe?

Coarctation of aorta: Coarctation of the aorta (coa) is a relatively common defect that accounts for 5-8% of all congenital heart defects. The diagnosis of coarctation of the aorta may be missed and diagnosis is often delayed until the patient develops congestive heart failure (chf), which is common in infants, or hypertension, which is common in older children. Coa is a lifelong disease with a guarded prognosis.