Patent ductus arteriosus is a type of congenital heart defect. Typically, the ductus arteriosus is expected to close on its own, but if it remains open over time and is larger than about five centimeters, it is crucial to seek surgical treatment at a hospital promptly. Currently, there are no particularly effective medications to improve this condition since it is a congenital heart disease. Early surgical intervention is recommended. This condition is considered serious, and during this period, it is important to actively prevent upper respiratory infections, as they can repeatedly lead to pulmonary inflammation.