PubMed · 439429
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T Yamaji, M Ishibashi, S Katayama, A Itabashi. 1979. [Adrenal gland hyperfunction and hypofunction].. https://pubmed.ncbi.nlm.nih.gov/439429/
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The therapeutic benefit of glucocorticoids appears to derive chiefly from their suppression of immunologic and inflammatory responses, but beyond these generalized phenomena, there are a number of tissue-specific effects. Increasing knowledge of these actions is shedding light on such issues as steroid resistance and steroid-induced adrenocortical insufficiency.
Megaesophagus, hypercalcemia, and eosinophilia associated with glucocorticoid deficiency were detected in a 5-year-old neutered female Standard Poodle with concurrent hypothyroidism. Clinical and biochemical abnormalities resolved with glucocorticoid replacement treatment, and the dog was normal 29 months after diagnosis. The dog's breed and sex and the existence of a second endocrinopathy supported an underlying immunologic disorder.
We report two cases of reversible left ventricular dysfunction associated with deep negative T waves during acute adrenal crisis due to isolated deficiency of adrenocorticotrophic hormone. There were no symptoms suggestive of heart disease in either case and left ventricular wall motion abnormalities, present mainly around the left ventricular apex, returned to normal in 1-2 weeks. Deep negative T waves normalized 4 weeks after corticosteroid administration. Acute adrenal crisis should be considered when deep negative T waves are associated with left ventricular dysfunction without cardiac symptoms.