Your mitral valve acts like a door that controls how blood moves between different parts of your heart. Mitral valve stenosis narrows this valve, making it hard for blood to flow properly through the heart.
You may experience mitral valve stenosis as the result of:
- Calcium deposits around the valve
- Certain medications
- Drug use
- Radiation treatment in the chest
- Rheumatic fever (linked to untreated strep throat or scarlet fever)
If left untreated, mitral valve stenosis can lead to serious heart problems. It can also cause blood clots that lead to strokes, high blood pressure, irregular heartbeats and even heart failure.