POSTURAL HYPOTENSION

Abstract
Normally, the arterial blood pressure in man is maintained relatively stable in spite of marked variations in body posture. Failure of this postural adaptation occasionally occurs, with the production of symptoms which may handicap the patient severely. Bradbury and Eggleston1first described the clinical syndrome of "postural hypotension" in 1925. Since that time a total of twenty-six definite case reports have appeared in the literature,2including reports of cases in which the hypotension occurred in association with tabes dorsalis and Addison's disease. It is questionable whether certain additional cases reported should be included in the total number. Schellong2dcited five cases of postural hypotension but gave insufficient data on three to warrant their inclusion. In two of the cases reported by Laubry and Doumer2i(cases 3 and 5) the fall in blood pressure was so slight, inconstant and transitory that, as Barker2lsuggested, it seems

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