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  • Title: Changes in thyroid hormones in surgical trauma.
    Author: Arunabh, Sarda AK, Karmarkar MG.
    Journal: J Postgrad Med; 1992; 38(3):117-8. PubMed ID: 1303410.
    Abstract:
    A prospective study of 20 patients who underwent elective surgery, is presented reporting the effect of surgical trauma on circulating thyroid hormone levels. Although no increase in the serum T4 levels was observed following surgery, serum T3 values were found to decrease and serum rT3 values were found to increase in the post-operative period, representing activation of an alternate pathway in the peripheral conversion of T4 to T3. Since trauma induces a hypermetabolic state due to hypersecretion of cortisol, alterations in thyroid hormone levels were concluded to represent an appropriate response in trauma to counter the effects of trauma-induced cortisol hypersecretion.
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