CARL S. GOLDSTEIN, M.D.; SETH BRAUNSTEIN, M.D., Ph.D.; STANLEY GOLDFARB, M.D.
To the editor: We previously described the case of an 88-year-old man with the syndrome of inappropriate antidiuretic hormone secretion (SIADH), without any associated disease (1). On the basis of 17 months of follow-up, we advocated that this patient had a truly idiopathic form of SIADH, expressed as chronic, asymptomatic, hypotonic hyponatremia.
We are writing to extend this observation, now after a follow-up of 3 years. The patient remains hyponatremic, with serum sodium concentrations ranging from 122 to 132 meq/L. Since our original report, he has had cystoscopy to evaluate incontinence, but the test revealed no malignancy. Esophagogastroscopy was done
GOLDSTEIN CS, BRAUNSTEIN S, GOLDFARB S. Syndrome of Inappropriate Antidiuretic Hormone Secretion in Advanced Age. Ann Intern Med. ;102:563. doi: 10.7326/0003-4819-102-4-563_1
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Published: Ann Intern Med. 1985;102(4):563.
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