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  • Title: [Is it possible to predict the development of Nelson's syndrome in Cushing's disease after bilateral adrenalectomy?].
    Author: Horký K, Kanka J, Gregorová I, Tomsová Z, Dvoráková J.
    Journal: Cas Lek Cesk; 1990 May 25; 129(21):645-9. PubMed ID: 2164450.
    Abstract:
    A detailed analysis of clinical and laboratory findings in a group of 66 patients with Cushing's disease treated with bilateral adrenalectomy, out of whom 15 developed Nelson's syndrome, gave evidence that Nelson's syndrome mostly affects children and young patients compared to older persons. Bilateral adrenalectomy performed in patients aged over 40 years was never accompanied by Nelson's syndrome. Basal plasma ACTH values prior to adrenalectomy (30.9 +/- 4.53 pmol/l in the absence of Nelson's syndrome and 31.3 +/- 5.41 pmol/l in patients with Nelson's syndrome) as well as the degree of their suppressibility with 8 mg dexamethane (to 18.8 +/- 3.43 pmol/l in Nelson's syndrome and 19.0 +/- 3.44 pmol/l in patients without it) did not provide sufficient evidence for the prediction of later development of Nelson's syndrome. The same is true of the plasma cortisol concentrations. A tendency to a significant plasma ACTH increase after adrenalectomy within a 6-month period, and especially its lesser suppressibility raises a strong suspicion of an incipient development of Nelson's syndrome. These findings will have to be taken into account when deciding on the surgical treatment of Cushing's disease.
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