What causes a diastolic murmur?
What causes a diastolic murmur?
Diastolic heart murmurs may occur because of problems with your heart valves. Heart valve problems that can lead to a diastolic murmur include:
- Aortic regurgitation: The aortic valve that lets blood travel from your heart to your aorta doesn’t close tightly, causing leaks.
- Pulmonic regurgitation: The pulmonary valve, which connects your heart and lungs, doesn’t close tightly, causing leaks.
- Mitral stenosis: The mitral valve, which connects the top left chamber of your heart (left atrium ) to the bottom left chamber of your heart (left ventricle) is narrowed.
- Tricuspid stenosis: The tricuspid valve, which connects the top right chamber (right atrium) to the bottom right chamber (right ventricle) is narrowed.
You may also develop a diastolic heart murmur if you have:
- Certain types of congenital heart disease (heart disease you are born with).
- Endocarditis, an infection in your heart’s inner lining and/or valves.
- Long-term effects from rheumatic fever.