What is the typical treatment approach for pediatric ventricular septal defect depending on pulmonary hypertension severity?

• A. Surgery between 4-6 months if pulmonary hypertension is severe; otherwise diuretics and potentially surgery 1-4 years.
• B. Immediate surgery within the first month of life.
• C. Observation with no intervention ever.
• D. Only diuretics with no surgery ever.

Answer: (A)

Timing of repair for a pediatric VSD depends on how much the pulmonary circulation is affected by the defect. If pulmonary hypertension is severe, repairing the defect early—often around 4–6 months—helps reduce the left-to-right shunt and protect the developing lungs. If pulmonary hypertension is not severe, initial medical management with diuretics to control heart failure can be used while monitoring, with the goal of planning closure later, typically around 1–4 years when the child is better able to tolerate surgery. In Eisenmenger physiology, closure is not done because the pulmonary vasculature has become irreversibly damaged. The other options don’t fit this approach, as they either push for early surgery in all cases, or advise no intervention or surgery-only with no plan for eventual defect closure.