In the absence of structural heart disease (including a normal ECG), syncope is most often of neurally mediated reflex origin or orthostatic hypotension. As a rule, reflex etiologies predominate in ...

This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they ...

Have you ever felt dizzy or lightheaded after getting up from a seated or lying position? Did you feel as though gravity was pulling you down into a state of unconsciousness? If that's something ...

PATIENTS with idiopathic orthostatic hypotension demonstrate various hemodynamic abnormalities in response to standing. Reflex peripheral vasoconstriction fails to occur normally, 1 venous return to ...

Orthostatic hypotension, also known as postural hypotension, happens when blood vessels in the body fail to constrict (narrow) in response to gravity. This causes a decrease in blood pressure and ...

November 27, 2001 -- Bethesda, Md. — The American Journal of Physiology: Heart and Circulatory Physiology, one of the 14 peer-reviewed journals published by the American Physiological Society (APS), ...

Neurogenic orthostatic hypotension (NOH) is an orphan disease that primarily affects patients with neurodegenerative disorders such as Parkinson’s disease and multiple system atrophy. The first step ...

Citation: Lowry M et al (2024) Orthostatic hypotension 1: the physiology of blood pressure regulation. Nursing Times [online]; 120: 11. This article is the updated version of Lowry M et al (2016) ...

The problem, a brief but precipitous drop in blood pressure that causes lightheadedness or dizziness when standing up, is called orthostatic hypotension. By Jane E. Brody Orthostatic hypotension — to ...

Orthostatic, or postural, hypotension is defined as a sudden drop in blood pressure resulting from a change in posture, such as when a person stands up quickly. When a person stands up after sitting ...