What is a heart murmur? Heart murmurs are sounds during your heartbeat cycles such as the roar or noise that is made by the turbulent blood at or near the heart. This sound can be heard with a stethoscope. A normal heartbeat makes it sound like “lubb-dupp” (sometimes described as “lub-DUP”), which is the sound of the heart valve closing.
Often, a heart murmur is not harmful (innocent) and does not require treatment. Heart murmurs may require follow-up tests to ensure the murmur is not caused by a serious heart condition. Treatment, if necessary, is directed at the cause of your heart murmur.
if you have any signs or symptoms, may indicate a heart problem:
- Skin that appears blue, especially on your fingertips and lips
- Sudden swelling or weight gain
- Hard to breathe
- Chronic cough
- Liver enlargement
- Enlarged blood vessels in the neck
- Poor appetite and failure to grow normally (in infants)
- Weight sweats with little to no energy
- Chest pain
There are two types of heart murmurs: innocent heart murmurs and abnormal murmurs. Someone with an innocent murmur has a normal heart. This type of heart murmur is common in infants and children.
Normal cardiac murmur is more serious. In children, abnormal murmurs are usually caused by congenital heart disease. In adults, abnormal whispers are most often due to heart valve problems obtained.
Heart murmur is innocent
An innocent heart murmur can occur when blood flows faster than normal through the heart. Conditions that can lead to rapid blood flow through the heart, resulting in innocent heart murmurs, including:
- Physical activity or exercise
- Not having enough healthy red blood cells to bring enough oxygen to your body tissues (less blood)
- Excessive amounts of thyroid hormones in the body (hyperthyroidism)
- Rapid growth phase, such as adolescents
Cardiac Murmurs are not normal
Here is what causes heart murmurs:
- Holes in the heart or heart of the shunts. Known as Septum Defects, the holes in the heart may or may not be serious, depending on the size of the hole and its location. Cardiac shunts occur when there is abnormal blood flow between the chambers of the heart and blood vessels, which can lead to a heart murmur.
- Heart valve abnormalities. Congenital heart valve abnormalities present at birth, but sometimes not found until much later in life. Examples include valves that do not allow enough blood through them (stenosis) or those that do not close properly and leak (regurgitation), such as mitral valve prolapse.
- Valve calcification. Hardening or thickening of the valve, as in mitral stenosis or aortic valve stenosis, this can occur as you age. The valve may be narrowed (stenotic), making it difficult for blood to flow through your heart, resulting in murmurs.
- Infection of the liver layer and valve usually occurs when bacteria or other germs from other parts of the body, such as your mouth, spread through the bloodstream and lodge in your heart.
- Rheumatic fever. Rheumatic fever is a serious condition that can occur if you do not receive prompt or complete treatment for a sore throat infection.
risk factors that increase heart murmurs:
- The family history of congenital heart. If the sibling has a heart defect, which increases your chances or your child may also have heart defects and heart murmurs.
- Certain medical conditions, including hypertension, uncontrolled hyperthyroidism, cardiac infections (endocarditis), high blood pressure in the lungs (lung hypertension), carcinoid syndrome, hypereosinophilic syndrome, systemic lupus erythematosus, rheumatoid arthritis, muscle a weakened heart or history of rheumatic fever, may increase the risk of later heart murmurs in life.
Factors that increase your baby’s risk of developing a heart murmur include:
- Diseases during pregnancy. Having multiple conditions during pregnancy, such as uncontrolled diabetes or rubella infection, increases your baby’s risk of developing a heart defect and a heart murmur.
- Taking certain drugs or drugs during pregnancy. The use of drugs, alcohol or certain drugs can harm the developing baby, causing heart defects.