Dr. K K Aggarwal, President Heart Care Foundation of India and Group Editor in Chief MEDtalks, will talk about the intervention in pulmonary stenosis in this video. Pulmonary stenosis can be mild, moderate or severe. Dr. Aggarwal will explain the gradients respectively. If the pulmonary valve velocity is less than 3 meters, it is mild. If it is more than 4 meters per second then it is severe. And in between 3-4 meters per second then it is moderate. The patient has to be reevaluated every three months. If it is mild, then do not intervene immediately.