Device Closure is used to close a defect or an opening between the right and left sides of the heart. A heart has four chambers. The upper two chambers are called at Atria. Atria are separated by a wall which is called Atrial Septum. The lower chambers are known as Ventricles- Right and left. Pulmonary Veins supply Oxygenated blood to the Left Atrium. This left atrium, in turn, sends this oxygenated blood to the Left Ventricle through Mitral Valve, for circulation of oxygenated blood in the body.
The walls of the heart are well separated maintaining a good circulation system. But in some congenital heart defect situations, if there are any holes on the heart, either in the atrial wall or the ventricle wall, this can result in disturbed blood circulation resulting in performance failure of the heart. If the holes are particularly small, they can be filled up surgically, with some metal parts. This concept is known as DEVICE CLOSURE. So, in short, in Device Closure, there is a metal device that is surgically placed in the place where there is a whole in a heart, in order to maintain the heart’s performance.