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Abstract
Background. Acute adrenal insufficiency after a surgical procedure or trauma is rarely reported.
In recent years, however, we have treated seven patients with acute primary adrenal
insufficiency and three patients with secondary adrenal insufficiency who presented
with shock after a surgical procedure or trauma. The standard cosyntropin test was
misleading for the diagnosis of corticotropin deficiency.
Methods. In this study we measured serum cortisol in patients older than 65 years who had
unexplained hypotension after an abdominal surgical procedure. If the serum cortisol
was less than 15 μg/dl, we performed 1 μg and standard (250 μg) cosyntropin tests
and measured thyroxine, thyrotropin, leutinizing hormone in all patients, and free
testosterone in men.
Results. We identified five (5%) of 105 patients after an operation who displayed evidence
of corticotropin deficiency (i.e., serum cortisol <15 μg/dl during hypotension, prompt
hemodynamic improvement with glucocorticoid therapy, and normal response to standard
dose cosyntropin). In these patients 1 jug cosyntropin produced abnormal peak cortisol
levels. These patients also had thyrotropin or leutinizing hormone deficiency. After
recovery the low hormone levels improved or became normal.
Conclusions. Postoperative adrenal insufficiency, particularly that caused by transient corticotropin
deficiency, is more common in patients than currently recognized. The 1 μg cosyntropin
test may be more sensitive than the standard test for identifying secondary adrenal
insufficiency.
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Article info
Footnotes
☆Supported by a grant from the Gundersen Medical Foundation
☆☆Presented at the Fifteenth Annual Meeting of the American Association of Endocrine Surgeons, Dearborn, Mich., April 17–19, 1994.
Identification
Copyright
© 1994 Published by Elsevier Inc.