True about 1 year old child with PDA is-

Ans. is 'a' i.e., Symptoms similar to aoopulmonary window Before comparing the symptoms of PDA & Aoopulmonary window let me discuss the C/F of PDA. o Patent ductus aeriosus is a communication between pulmonary aery and Aoa after fetal life. PDA results in left to right shunt from the aoa to the pulmonary aery. The flow occurs both during systole and diastole as a pressure gradient is present throughout the cardiac cycle between the 2 great aeries. This flow of blood results in continuous murmur it is usually heard at 2nd left interspace. In patients with large left to right shunt a low pitched mitral mid diastolic murmur is audible at the apex, owing to the increased volume of blood flow across the mitral valve. o There are other conditions which can produce systolic and diastolic murmur in the pulmonary area such as Aoopulmonary window defect.