Dr. Smita Mishra, Paediatric Cardiologist, Associate Director - Jaypee Hospital, will talk about valvular heart disease in this video. Rheumatic heart disease is the major cause of valvular heart disease. In this the valves don not function properly. The valves are present in between the chambers of heart and they open in one direction to avoid backflow of the blood. She will further explain the importance of the valves.