Final answer:
The congenital heart disease that causes 2° hypertension is coarctation of the aorta, where the aorta is abnormally narrowed, leading to high blood pressure. It is treated with surgical repair or angioplasty.
Step-by-step explanation:
The congenital heart disease that causes secondary (2°) hypertension is coarctation of the aorta. Coarctation of the aorta is an abnormal narrowing of the aorta that significantly restricts blood flow, leading to high blood pressure upstream of the constriction. This condition may be life-threatening if severe and detected in infancy, but milder forms may not be diagnosed until later in life. Symptoms can range from difficulty breathing and poor feeding in infants to dizziness and nosebleeds in older individuals. Treatments typically involve surgical repair or angioplasty to improve blood flow.
Other congenital heart diseases mentioned, like patent ductus arteriosus and Tetralogy of Fallot, can cause other complications, such as increased pulmonary pressure or cyanosis, but they do not typically cause secondary hypertension.