Pulmonary regurgitation

The pulmonary valve is a heart valve located between the right ventricle and the pulmonary artery. It acts as a one-way valve, preventing blood from flowing back from the pulmonary artery into the right ventricle. If the pulmonary valve cannot close completely, allowing blood to flow back from the pulmonary artery into the right ventricle, it is called pulmonary regurgitation. It is important to note that physiological pulmonary regurgitation, which causes mild backflow, is very common in healthy individuals and generally does not require any treatment or progress further. The symptoms of this condition are non-specific and difficult to distinguish from the symptoms of the primary disease. Main symptoms include cough, chest pain, palpitations, and susceptibility to respiratory infections. As the disease progresses, symptoms of right heart failure may appear, such as edema, hepatomegaly, and dyspnea.