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  2. Orthostatic hypotension - Wikipedia

    en.wikipedia.org/wiki/Orthostatic_hypotension

    Severe drops in blood pressure can lead to fainting, with a possibility of injury. Moderate drops in blood pressure can cause confusion/inattention, delirium, and episodes of ataxia. Chronic orthostatic hypotension is associated with cerebral hypoperfusion that may accelerate the pathophysiology of dementia. [5]

  3. Orthostatic syncope - Wikipedia

    en.wikipedia.org/wiki/Orthostatic_syncope

    Orthostatic syncope refers to syncope resulting from a postural decrease in blood pressure, termed orthostatic hypotension. [1] Orthostatic hypotension occurs when there is a persistent reduction in blood pressure of at least 20mmHg systolic or 10mmHg diastolic within 3 minutes of standing or being upright to 60 degrees on the head-up tilt ...

  4. Syncope (medicine) - Wikipedia

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

    Depends on underlying cause [2] Frequency. ~5 per 1,000 per year [1] Syncope, commonly known as fainting or passing out, is a loss of consciousness and muscle strength characterized by a fast onset, short duration, and spontaneous recovery. [1] It is caused by a decrease in blood flow to the brain, typically from low blood pressure. [1]

  5. Why do we faint? A newly discovered link between the heart ...

    www.aol.com/news/why-faint-newly-discovered...

    A sudden restriction of blood flow to the brain. ... the skull send signals from the heart to the brain that trigger a drop in heart rate, blood pressure and breathing rate. That, in turn, may ...

  6. What Does It Mean To Have a Sense of Impending Doom? - AOL

    www.aol.com/does-mean-sense-impending-doom...

    This response involves a sudden drop in blood pressure and vasodilation—a decrease in blood flow throughout the body. Various conditions and diseases trigger a sense of impending doom and the ...

  7. Hypotension - Wikipedia

    en.wikipedia.org/wiki/Hypotension

    Hypotension, also known as low blood pressure, is a cardiovascular condition characterized by abnormally reduced blood pressure. [1] Blood pressure is the force of blood pushing against the walls of the arteries as the heart pumps out blood [2] and is indicated by two numbers, the systolic blood pressure (the top number) and the diastolic blood pressure (the bottom number), which are the ...

  8. Reflex syncope - Wikipedia

    en.wikipedia.org/wiki/Reflex_syncope

    Reflex syncope. Reflex syncope is a brief loss of consciousness due to a neurologically induced drop in blood pressure and/or a decrease in heart rate. [5][6][7][8][9][10][2] Before an affected person passes out, there may be sweating, a decreased ability to see, or ringing in the ears. [1] Occasionally, the person may twitch while unconscious. [1]

  9. Cerebrospinal fluid leak - Wikipedia

    en.wikipedia.org/wiki/Cerebrospinal_fluid_leak

    A cerebrospinal fluid leak (CSF leak or CSFL) is a medical condition where the cerebrospinal fluid (CSF) that surrounds the brain and spinal cord leaks out of one or more holes or tears in the dura mater. [1] A CSF leak is classed as either spontaneous (primary), having no known cause (sCSF leak), or nonspontaneous (secondary) where it is ...

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