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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 ...
The drop in blood pressure may be sudden (vasovagal orthostatic hypotension), within 3 minutes (classic orthostatic hypotension) or gradual (delayed orthostatic hypotension). [4] It is defined as a fall in systolic blood pressure of at least 20 mmHg or diastolic blood pressure of at least 10 mmHg after 3 minutes of standing.
There is an ongoing medical debate over what is the optimal level of blood pressure to target when using drugs to lower blood pressure with hypertension, particularly in older people. [ 13 ] Blood pressure fluctuates from minute to minute and normally shows a circadian rhythm over a 24-hour period, [ 14 ] with highest readings in the early ...
Etilefrine, sold under the brand name Effortil among others, is a sympathomimetic medication used as an antihypotensive agent to treat orthostatic hypotension. [1] It is usually used by mouth, but is also available as an injectable. [3] [4] Side effects of etilefrine include nausea, tremors, and palpitations, among others. [5]
Midodrine, sold under the brand names ProAmatine and Orvaten among others, is an antihypotensive medication used to treat orthostatic hypotension (low blood pressure when standing) and urinary incontinence. [3] [5] [1] It is taken by mouth. [3] [1]
When mechanisms for the degradation of bradykinin are impaired, the peptide builds up and causes hypotension. Angiotensin converting enzyme (ACE) is primarily responsible for its degradation (75%) but can be inhibited by administration of blood pressure medications called ACE inhibitors .
Angiotensin II (Ang II) is a medication that is used to treat hypotension resulting from septic shock or other distributive shock. It is a synthetic vasoconstrictor peptide that is identical to human hormone angiotensin II [ 3 ] and is marketed under the brand name Giapreza .
Permissive hypotension or hypotensive resuscitation [1] is the use of restrictive fluid therapy, specifically in the trauma patient, that increases systemic blood pressure without reaching normotension (normal blood pressures). The goal blood pressure for these patients is a mean arterial pressure of 40-50 mmHg or systolic blood pressure of ...