Postural tachycardia syndrome. Reversal of sympathetic hyperresponsiveness and clinical improvement during sodium loading

Stephen G. Rosen, Philip E. Cryer

Research output: Contribution to journalArticle

87 Scopus citations

Abstract

A patient with disabling postural tachycardia without postural hypotension had symptoms that included palpitations, weakness, abdominal and leg pain, light-headedness, headache and diaphoresis that occurred only in the upright position. She was shown to have an enhanced sympathetic neural response to standing (exaggerated plasma norepinephrine response), and her cardiovascular responsiveness to released catecholamines was clearly intact. However, she was unable to maintain normal sodium balance and had a measurably reduced plasma volume while consuming normal amounts (120 mmol dally) of dietary sodium. Sodium loading (240 mmol ingested dally plus administration of fluorohydrocortisone, 0.1 mg daily) largely corrected the hemodynamic abnormalities, prevented postural symptoms and caused the compensatory sympathetic response to revert to normal.

Original languageEnglish
Pages (from-to)847-850
Number of pages4
JournalThe American journal of medicine
Volume72
Issue number5
DOIs
StatePublished - May 1982
Externally publishedYes

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