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  2. Orthostatic hypotension - Wikipedia

    en.wikipedia.org/wiki/Orthostatic_hypotension

    Orthostatic hypotension, also known as postural hypotension, [2] is a medical condition wherein a person's blood pressure drops when they are standing up (orthostasis) or sitting down. Primary orthostatic hypotension is also often referred to as neurogenic orthostatic hypotension. [ 3 ]

  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 three minutes of standing or being upright to 60 degrees on the head-up tilt table.

  4. Pacemaker syndrome - Wikipedia

    en.wikipedia.org/wiki/Pacemaker_syndrome

    Hypotension - Seizure, mental status change, diaphoresis, and signs of orthostatic hypotension and shock. Low cardiac output - Fatigue, weakness, dyspnea on exertion, lethargy, and lightheadedness. Hemodynamic - Pulsation in the neck and abdomen, choking sensation, jaw pain, right upper quadrant (RUQ) pain, chest colds, and headache.

  5. Orthostatic vital signs - Wikipedia

    en.wikipedia.org/wiki/Orthostatic_vital_signs

    Orthostatic vital signs are also taken after surgery. [7] A patient is considered to have orthostatic hypotension when the systolic blood pressure falls by more than 20 mm Hg, the diastolic blood pressure falls by more than 10 mm Hg, or the pulse rises by more than 20 beats per minute within 3 minutes of standing [5] [7]

  6. Pure autonomic failure - Wikipedia

    en.wikipedia.org/wiki/Pure_autonomic_failure

    The majority of symptoms that patients with PAF exhibit are associated with neurogenic orthostatic hypotension, or orthostatic hypotension brought on by severe sympathetic failure. Within three minutes of standing up straight, orthostatic hypotension is defined as a drop in systolic blood pressure of at least 20 mm Hg or a drop in diastolic ...

  7. Baroreceptor - Wikipedia

    en.wikipedia.org/wiki/Baroreceptor

    At normal resting blood pressures, baroreceptors discharge with each heart beat. If blood pressure falls, such as on orthostatic hypotension or in hypovolaemic shock, baroreceptor firing rate decreases and baroreceptor reflexes act

  8. Blair Grubb - Wikipedia

    en.wikipedia.org/wiki/Blair_Grubb

    He was among the first researchers in the United States to employ head upright tilt table testing for the diagnosis of vasovagal (neurocardiogenic) syncope. He is also widely considered one of the world's leading experts on postural orthostatic tachycardia syndrome (POTS) and orthostatic hypotension. He has also pioneered new wound closure ...

  9. Vertebrobasilar insufficiency - Wikipedia

    en.wikipedia.org/wiki/Vertebrobasilar_insufficiency

    In reality, orthostatic hypotension can cause vague symptoms (e.g. dizziness) which are similar to those caused by VBI; VBI should only be considered where the stenosis is severe and/or there are focal neurological symptoms specific to the posterior circulation. [6] VBI may also result from altered blood flow as seen in subclavian steal syndrome.