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Aortic Stenosis (Narrowed Aortic Valve)
The main outflow valve of the heart becomes narrowed, so the heart must work harder to push blood to the body. It is common in older adults and can cause fainting and breathlessness.
Causes & risk factors
- Age-related calcium build-up on the valve
- Rheumatic heart disease
- A bicuspid (two-flap) valve present from birth
- High cholesterol and calcium deposits
Common symptoms
- Chest pain on exertion
- Breathlessness
- Fainting, especially with activity
- Fatigue
- Palpitations
- Heart murmur
Tests & diagnosis
- Echocardiogram
- ECG
- Chest X-ray
- Cardiac catheterisation (selected cases)
Treatment & management
- Regular monitoring for mild disease
- Managing blood pressure and other risk factors
- Valve replacement surgery for severe disease
- Catheter-based valve replacement (TAVI) in selected patients
- Avoiding strenuous exertion if advised
When to see a doctor urgently
- Call emergency services for fainting, severe chest pain or breathlessness
- See a cardiologist if a murmur is found or symptoms appear
- Report fainting with exertion promptly — it can be a warning sign
Not a diagnosis. MedDroid gives general educational information about aortic stenosis (narrowed aortic valve). It cannot examine you, diagnose or prescribe — always confirm with a qualified doctor.
Frequently asked questions
Is aortic stenosis serious?
Severe stenosis with symptoms is serious and usually needs valve replacement, but mild cases are simply monitored.
Can medicines cure a narrowed valve?
No medicine reopens the valve; severe cases need surgical or catheter valve replacement.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.