Temporary adrenal dysfunction with descending thoracic aortic occlusion (Journal article)

Anagnostopoulos, P. V./ Toumpoulis, I. K./ Shepard, A. D./ Drossos, G. E./ Tsatsoulis, A./ Anagnostopoulos, C. E.


BACKGROUND: We sought to determine whether descending thoracic aortic occlusion (DTAOC) induced ischemia results in adrenal dysfunction. METHODS: Eight pigs underwent DTAOC for 45 min. Six control pigs underwent a sham procedure. Serum cortisol and adrenocorticotropic hormone (ACTH) were measured at baseline, at the end of DTAOC, 30 and 60 min after restoration of flow, and 24 hours later. Statistical analysis was performed using repeated measures ANOVA and t-test. RESULTS: In the study group, cortisol levels decreased during DTAOC (p=0.048) and 30 min after flow restoration (p=0.004). In the control group there was no change in serum cortisol levels. In the study group the drop in serum cortisol was associated with an increase in ACTH levels during DTAOC (p=0.040) and 30 minutes after flow restoration (p=0.070). The increase in ACTH was also significant when compared to the controls during DTAOC (p=0.030) and 30 min after blood flow restoration (p=0.040). CONCLUSIONS: There is a transient period of adrenal dysfunction associated with DTAOC that results in stimulation of the pituitary-adrenal axis.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών Υγείας. Τμήμα Ιατρικής
Keywords: Adrenal Glands/*blood supply/*physiopathology,Adrenal Insufficiency/blood/etiology/*physiopathology,Adrenocorticotropic Hormone/blood,Animals,*Aorta, Thoracic,Balloon Occlusion/adverse effects,Disease Models, Animal,Hydrocortisone/blood,*Ischemia/etiology,Pituitary-Adrenal System/*physiopathology,Swine
URI: http://olympias.lib.uoi.gr/jspui/handle/123456789/24690
ISSN: 1401-7431
Link: http://www.ncbi.nlm.nih.gov/pubmed/17680513
http://informahealthcare.com/doi/abs/10.1080/14017430701227754
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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