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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 ]
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.
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]
Postural orthostatic tachycardia syndrome (POTS) is a condition characterized by an abnormally large increase in heart rate upon sitting up or standing. [1] POTS is a disorder of the autonomic nervous system that can lead to a variety of symptoms, [10] including lightheadedness, brain fog, blurred vision, weakness, fatigue, headaches, heart palpitations, exercise intolerance, nausea ...
Orthostatic hypotension, also called postural hypotension, is a common form of low blood pressure. [17] It occurs after a change in body position, typically when a person stands up from either a seated or lying position. [37] It is usually transient and represents a delay in the normal compensatory ability of the autonomic nervous system. [38]
In contrast to orthostatic hypotension (OH) in which neurodegenerative diseases might underlie, postural orthostatic tachycardia syndrome (POTS) in which psychiatric diseases might underlie responds to psychiatric intervention/ medication, or shows spontaneous remission. [44] [45]
Standing, also referred to as orthostasis, is a position in which the body is held in an upright (orthostatic) position and supported only by the feet. Although seemingly static, the body rocks slightly back and forth from the ankle in the sagittal plane , which bisects the body into right and left sides.
Other kinds of dysautonomia may coexist, e.g., postural orthostatic tachycardia syndrome (POTS) is common with this condition, orthostatic hypotension with the BP going both high and low at times due to autonomic dysfunction; Type 2 diabetes [1] Vascular adrenergic hypersensitivity: Orthostatic hypertension can be secondary to this [14]