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  2. Aortic stenosis - Wikipedia

    en.wikipedia.org/wiki/Aortic_stenosis

    It is unclear why aortic stenosis causes syncope. One theory is that severe AS produces a nearly fixed cardiac output. [14] When a person with aortic stenosis exercises, their peripheral vascular resistance will decrease as the blood vessels of the skeletal muscles dilate to allow the muscles to receive more blood to allow them to do more work ...

  3. What Is Heart Disease? Everything You Need to Know - AOL

    www.aol.com/heart-disease-everything-know...

    Stenosis causes your heart valves to narrow or harden, limiting blood flow and putting extra stress on the heart muscle because it needs to squeeze harder to move blood forward. Regurgitation or ...

  4. Heyde's syndrome - Wikipedia

    en.wikipedia.org/wiki/Heyde's_syndrome

    Heyde's syndrome; A stenotic aortic valve: Specialty: Cardiology, general surgery, Hematology: Symptoms: Aortic valve stenosis symptoms: Chest pain (angina) or tightness Shortness of breath, especially during exertion or when lying down Fatigue or weakness Irregular heartbeat or heart palpitations Dizziness or fainting episodes Gastrointestinal bleeding symptoms: Occult (hidden) or overt ...

  5. Syncope (medicine) - Wikipedia

    en.wikipedia.org/wiki/Syncope_(medicine)

    Aortic stenosis and mitral stenosis are the most common examples. Major valves of the heart become stiffened and reduce the efficiency of the hearts pumping action. This may not cause symptoms at rest but with exertion, the heart is unable to keep up with increased demands leading to syncope.

  6. Dizziness vs. vertigo: What the difference is and why ... - AOL

    www.aol.com/dizziness-vs-vertigo-difference-why...

    What causes vertigo and dizziness? “Dizziness is generally a more neurological cause or a potential cardiac cause. For example, it could be a blood flow issue or stenosis of a carotid artery ...

  7. Is It Normal to Feel Lightheaded Every Day? - AOL

    www.aol.com/normal-feel-lightheaded-every-day...

    Woman experiencing lightheadedness and dizziness. Feeling lightheaded and woozy can really throw you for a loop—it can be tough to focus when you feel like you’re going to fall or faint at any ...

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