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Cited by 75Pituitary Gland Disorders and TreatmentsAdrenal Hormones and DisordersStress Responses and Cortisol

A comparison of the insulin tolerance/glucagon test with the short ACTH stimulation test in the assessment of the hypothalamo‐pituitary‐adrenal axis in the early post‐operative period after hypophysectomy

Mukherjee, J. J., Jacome de Castro, J., Kaltsas, G., Afshar, F., Grossman, A. B., Wass, J. A. H., Besser, G. M.·1997·Clinical Endocrinology
DOI 10.1046/j.1365-2265.1997.2151035.x
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Abstract

OBJECTIVE: The insulin tolerance test (ITT) is the established reference test for assessing the hypothalamo‐pituitary‐adrenal (HPA) axis. Various authorities, however, have suggested that the 250 μg short ACTH stimulation test may be used to assess the HPA axis in place of the ITT in suspected hypopituitarism, although a number of other studies have suggested that the test may be unreliable in this setting. In this study, the ITT (or glucagon test) has been compared with the 250 μg short ACTH stimulation test in patients with pituitary tumours pre‐operatively and within 2 weeks of trans‐sphenoidal hypophysectomy. DESIGN: An ITT, or a glucagon test when the ITT was contraindicated, and the 250 μg short ACTH stimulation test, were performed in all the patients before (an ITT in 18 and a glucagon test in three patients) and within 2 weeks after trans‐sphenoidal hypophysectomy (an ITT in 16 and a glucagon test in five patients). PATIENTS: Twenty‐one patients with pituitary disorders (15 with acromegaly, one with a prolactinoma and five with non‐functioning tumours) were studied; four had a microadenoma, two a mesoadenoma and 15 a macroadenoma. MEASUREMENTS: Serum cortisol was measured by radioimmunoassay. A normal response was defined as a rise in serum cortisol to 580 nmol/l or above for all the tests. RESULTS: Before surgery, three of 18 patients (17%) had a discrepancy between the ITT and the 30 minute short ACTH stimulation test and one of three between the glucagon test and the 30 minute short ACTH stimulation test. Combined together, pre‐operatively, four of 21 patients (19%) had discrepant results. In the early post‐operative period, the discrepancy between ITT and the 30 minute short ACTH stimulation test was higher with four of 16 patients (25%) showing discordant results; one of the five patients tested had a discrepancy between the glucagon test and the 30 minute short ACTH stimulation test. On combining the tests, the post‐operative discrepancy was five of 21 patients (24%). CONCLUSIONS: The 250 μg short ACTH stimulation test produces discordant results from the ITT in a clinically significant proportion of affected patients when assessing the HPA axis, although the rate of discordance varies according to the criteria used for normality for both the tests. We suggest that the ITT should remain the preferred test for assessing ACTH secretory capacity compared with the standard 250 μg short ACTH stimulation test, both in the pre‐operative and in the early post‐trans‐sphenoidal hypophysectomy period.

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Crossref · 10.1046/j.1365-2265.1997.2151035.x

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  • It is not possible to be certain that the five patients who failed the GST but passed the SST have intact corticotrophic function because of well-reported false-pass results with the SST.

    “However, it is not possible to be certain that the five patients who failed the GST but passed the SST have intact corticotrophic function because of well-reported falsepass results with the latter test (45)(46)(47)(48).”

    From Anterior Pituitary Dysfunction in Survivors of Traumatic Brain Injury (2004) · cites this paper as [45]

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Authors
Mukherjee, J. J., Jacome de Castro, J., Kaltsas, G., Afshar, F., Grossman, A. B., Wass, J. A. H., & Besser, G. M.
Affiliations
St Bartholomew's Hospital (GB)
Corresponding author
Besser, G. M.
ORCID
Venue
Clinical Endocrinology
Publisher
Wiley
Published
1997-07
Volume
47
Issue
1
Pages
51-60
ISSN
  • 0300-0664 (ISSN-L)
  • 1365-2265
DOI
10.1046/j.1365-2265.1997.2151035.x
OpenAlex
W2011962936
Cited by
74
References
0
Citations by year
2024: 2 · 2022: 2 · 2021: 4 · 2020: 2 · 2019: 1 · 2018: 2 · 2016: 2 · 2015: 5 · 2013: 3 · 2012: 3
FWCI
4.29
Type
journal article
Language
en
Open access
closed
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor, 2311 d)
Locations
  • Clinical Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Pituitary Gland Disorders and Treatments
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
insulin tolerance test, glucagon stimulation test, hypothalamic-pituitary-adrenal axis, hypopituitarism, transsphenoidal hypophysectomy, pituitary tumors, acromegaly, serum cortisol, postoperative evaluation, test agreement, pituitary macroadenoma, pituitary microadenoma, prolactinoma
MeSH terms
Adenoma, Adrenocorticotropic Hormone, Female, Glucagon, Humans, Hypophysectomy, Hypothalamo-Hypophyseal System, Insulin, Male, Middle Aged, Pituitary Neoplasms, Pituitary-Adrenal System, Postoperative Period, Predictive Value of Tests

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