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Baroreflex and autonomic pathways normally ensure that blood pressure is maintained despite various stimuli, including postural change. The precise mechanism of orthostatic hypertension remains unclear, but alpha-adrenergic activity may be the predominant pathophysiologic mechanism of orthostatic hypertension in elderly hypertensive patients. [5]
Orthostatic hypotension is more frequent in elderly patients because of multiple factors such as supine hypertension, age-related changes in baroreflexes and vasoconstrictor responses and a decrease in muscle tone, cardiac and vascular compliance. Neurogenic orthostatic hypotension showed a prevalence of 18% in patients older than 65 years and ...
For most people, recommendations are to reduce blood pressure to less than or equal to somewhere between 140/90 mmHg and 160/100 mmHg. [2] In general, for people with elevated blood pressure, attempting to achieve lower levels of blood pressure than the recommended 140/90 mmHg will create more harm than benefits, [3] in particular for older people. [4]
The effect of treatment of blood pressure between 130/80 ... For patients having hypertension, ... aged 3 years and older have blood pressure measurement at ...
Two systematic reviews identified that indapamide with or without perindopril significantly reduced all cause mortality in young-elderly patients with a history of stroke, cardiovascular disease and type 2 diabetes mellitus, when greater reductions in mean office blood pressure are achieved, significant cardiovascular benefit was only observed ...
A hypertensive emergency is not based solely on an absolute level of blood pressure, but also on a patient's baseline blood pressure before the hypertensive crisis occurs. Individuals with a history of chronic hypertension may not tolerate a "normal" blood pressure, and can therefore present symptomatically with hypotension , including fatigue ...
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]
Syncope occurs in approximately 1% of patients given an initial dose of 2 mg prazosin or greater. This adverse effect is self-limiting and in most cases does not recur after the initial period of therapy or during subsequent dose titration. [3] The alpha blocker prazosin (Minipress) is most notorious for producing a first dose phenomenon.
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