The CHB full form in medical context is Complete Heart Block. It is a severe form of heart block where the electrical signals from the atria (the heart’s upper chambers) are completely blocked from reaching the ventricles (the heart’s lower chambers). Hence, this condition is connected to the chambers of the heart. This disconnection means that the atria and ventricles beat independently of each other, leading to a lack of coordination in the heart’s rhythm and significantly affecting its ability to pump blood effectively.