Question

Congenital heart disease with L-->R shunting, such as VSDs, AV canal defects, and anomalous pulmonary venous often manifest with heart failure at approx ___ age:

a) 1-2 days
b) 6-8 weeks
c) 6-12 months
d) 5-10 years

Answer 1

Congenital heart diseases such as VSDs, AV canal defects, and anomalous pulmonary venous return typically present with signs of heart failure at around 6-8 weeks of age.

Step-by-step explanation:

Congenital heart disease with left-to-right (L→R) shunting, such as Ventricular Septal Defects (VSDs), AV canal defects, and anomalous pulmonary venous return, often manifest with heart failure at approximately 6-8 weeks of age. These conditions can cause increased pulmonary blood flow, leading to pulmonary hypertension and congestive heart failure if not treated promptly. For instance, patent ductus arteriosus, one of the conditions mentioned, can result in significant morbidity if left untreated, as it allows blood to flow from the higher-pressure aorta into the lower-pressure pulmonary artery, overloading the lungs with circulation and leading to heart failure.