Anomalous glucose and insulin responses in patients with insulinoma: Caveats for diagnosis Journal Article


Authors: Dons, R. F.; Hodge, J.; Ginsberg, B. H.; Brennan, M. F.; Cryer, P. E.; Kourides, I. A.; Gorden, P.
Article Title: Anomalous glucose and insulin responses in patients with insulinoma: Caveats for diagnosis
Abstract: Two patients with insulinomas had unusual glucose and insulin-secretory dynamics in response to prolonged fasting. In patient 1, low insulin values persisted throughout three separate supervised fasts without a steady rise in the insulin-glucose ratio. In patient 2, a rising insulin-glucose ratio during a fast returned to normal after a documented catecholamine surge following a transient hypoglycemic episode. While patient 1 had clearly elevated proinsulin values of 52% to 57%, patient 2 had a near-normal value of 23%. The diagnosis of an insulinoma can usually be made by obtaining simultaneous glucose and insulin values during a prolonged supervised fast. Rarely, however, anomalous results may be obtained during supervised fasts of patients with insulinoma, and a broader range of diagnostic tests will be required to establish the correct diagnosis. © 1985, American Medical Association. All rights reserved.
Keywords: aged; middle aged; prednisone; case report; pancreatic neoplasms; diagnosis; insulin; hypoglycemia; glucose; blood glucose; drug monitoring; drug blood level; leucine; catecholamines; fasting; insulinoma; endocrine system; adenoma, islet cell; diazoxide; caloric restriction; humans; human; female; priority journal; tolbutamide
Journal Title: Archives of Internal Medicine
Volume: 145
Issue: 10
ISSN: 0003-9926
Publisher: American Medical Association  
Date Published: 1985-10-01
Start Page: 1861
End Page: 1863
Language: English
DOI: 10.1001/archinte.1985.00360100127021
PUBMED: 2994586
PROVIDER: scopus
DOI/URL:
Notes: Article -- Export Date: 26 October 2021 -- Source: Scopus
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  1. Murray F Brennan
    1059 Brennan