When divided by unified atomic mass units or daltons to form a pure numeric ratio, the atomic mass of an atom becomes a dimensionless value called the relative isotopic mass (see section below). Thus, the atomic mass of a carbon-12 atom is 12 u or 12 daltons (Da), but the relative isotopic mass of a carbon-12 atom is simply 12.
Most people who have mitral valve prolapse (MVP) donât need treatment because they donât have symptoms and complications. Even people who do have symptoms may not need treatment. The presence of symptoms doesnât always mean that the backflow of blood through the valve is significant. People who have MVP and troublesome mitral valve backflow may be treated with medicines, surgery, or both. The goals of treating MVP include:
Mitral valve prolapse is a condition in which the two valve flaps of the mitral valve do not close smoothly or evenly. Mitral valve prolapse is also known as click-murmur syndrome, Barlow's syndrome or floppy valve syndrome.ymptoms, which in some cases may be related to leaking of the mitral valve, can include: 1  Chest pain (not caused by coronary artery disease or a heart attack). 2  Dizziness. 3  Fatigue. 4  Sensation of feeling the heart beat (palpitations). 5  Shortness of breath with activity or when lying flat (orthopnea).