About Aortic Stenosis
The causes of aortic stenosis include:
- Congenital heart defects: Some people are born with aortic stenosis due to a heart problem present at birth, such as a bicuspid aortic valve.
- Calcium buildup: Excess calcium can accumulate on the heart valve, leading to aortic stenosis. This can happen over time or as a result of conditions like end-stage kidney disease.
- Inflammation and scarring: Conditions like rheumatic heart disease resulting from rheumatic fever can cause inflammation and scarring in the heart valves, leading to aortic stenosis.
The non-modifiable risk factors for aortic stenosis cannot be changed or controlled. This includes:
- Age: Being older, especially over 60 years old, is a risk factor for aortic stenosis due to calcium buildup in the valve and scarring.
The modifiable risk factors for worsening aortic stenosis can be influenced or changed. These include:
- Smoking: Smoking is associated with an increased risk of developing aortic valve stenosis.
- Hypercholesterolemia: High cholesterol levels can contribute to the development of aortic stenosis.
- Hypertension: High blood pressure is also considered a modifiable risk factor for aortic stenosis.
It's important to note that these risk factors may vary from person to person. For personalized information and guidance, it's best to consult with your healthcare professional.
The most common early symptoms of aortic stenosis include:
- Difficulty breathing during physical activity
- Getting tired more easily when exercising
- Light-headedness/dizziness during physical activity
- Chest pain during physical activity
As aortic stenosis progresses to later stages or higher severity, the following symptoms may occur:
- Heart failure
- Fainting
- Chest pain
It's important to note that some individuals may not experience any symptoms, especially during a period without noticeable symptoms, which can last as long as 10 to 20 years. If you suspect you may have aortic stenosis or are experiencing any concerning symptoms, it is crucial to consult with a healthcare professional for an accurate diagnosis and appropriate management.
To diagnose aortic stenosis, the following examinations, tests, and procedures are commonly performed:
- Physical exam: The healthcare provider will conduct a thorough physical exam to look for physical signs of the condition including heart murmurs.
- Lab tests: Specific lab tests, including blood draws, may be recommended to assess overall health and check for conditions that could impact heart health.
- Imaging studies: Various imaging studies may be ordered to visualize the heart and assess the severity of aortic valve stenosis. These may include:
- Echocardiogram: This test uses sound waves to create images of the heart and evaluate the condition of the heart chambers and valves, specifically checking for narrowing in the aortic valve.
- Chest X-ray: A chest X-ray provides an image of the chest, which can show the size and shape of the heart and detect signs of fluid buildup around the lungs.
- Chest MRI (magnetic resonance imaging) or CT (computed tomography) scan: These imaging techniques can provide detailed images of the heart's structure and function, helping to evaluate the aortic valve and surrounding blood vessels.
To determine the severity of aortic valve stenosis, additional examinations, tests, and procedures may be performed:
- Cardiac catheterization: To determine the severity of aortic valve stenosis, a cardiac catheterization may be done. This procedure involves inserting a thin tube (catheter) into a blood vessel to measure pressure in the heart chambers and assess blood flow across the aortic valve.
- Stress test: A stress test evaluates how well your heart functions during physical activity or under stress, which can help identify symptoms related to aortic stenosis and assess the heart’s response to increased demand.
It's important to note that these examinations, tests, and procedures should be recommended by your healthcare provider based on your specific symptoms and medical history.
The goals of treatment for aortic stenosis are to extend life and improve the quality of life for patients. The following treatments and strategies can help achieve these goals:
- Medication: Antibiotics may be given prior to certain procedures to reduce the risk of developing an infection on the aortic valve.
- Heart-healthy lifestyle: For patients with no or mild symptoms, maintaining a heart-healthy lifestyle is recommended. This includes adopting a heart-healthy diet, engaging in regular physical activity, maintaining a moderate weight, avoiding smoking, getting treatment for any severe sore throat to prevent rheumatic fever, and practicing proper dental hygiene.
- Valvuloplasty: This minimally invasive procedure repairs the existing valve and can be an option for some patients.
- Other surgical procedures:
- Transcatheter aortic valve replacement (TAVR): This minimally invasive procedure replaces the damaged valve with one made from animal tissue.
- Surgical aortic valve replacement (SAVR): This open-heart surgery replaces the damaged valve with a mechanical valve or a valve from a cow, pig, or human donor.
It's important to note that the specific treatment approach may vary depending on the severity of the condition and individual patient factors. It's best to consult with a healthcare professional to determine the most appropriate treatment plan for your specific situation.
Medication dosing may be affected by many factors. Check with your health care professional about dosing for your individual situation. Side effects can occur. Check with your health care professional or read the information provided with your medication for side effect information.