<unk>  or postural<unk>  is defined as a reduction of systolic blood pressure of at least 20 mm Hg or 10 mm Hg in diastolic blood pressure within 3 minutes of standing. A similar fall during head-up tilt test at 60 degrees also defines<unk> .<unk>  may be asymptomatic or may cause symptoms of lightheadedness, dizziness, blurred vision or cognitive impairment. It may have acute or chronic causes. Management of<unk>  may be challenging, in particular in patients with<unk>  and concomitant supine hypertension.
Orthostatic hypotension
Carotidynia
Intracranial hypotension
Oscillopsia
Hyperpathia
Myotonia
Cataplexy
Asterixis