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  • Title: The spectrum of endocrine dysfunction in active pulmonary tuberculosis.
    Author: Post FA, Soule SG, Willcox PA, Levitt NS.
    Journal: Clin Endocrinol (Oxf); 1994 Mar; 40(3):367-71. PubMed ID: 8187301.
    Abstract:
    OBJECTIVE: Substantial variation in the prevalence (0-55%) of hypoadrenalism in tuberculosis (TB) has been reported. The aim of this study was to prospectively evaluate adrenal, thyroid and gonadal function in patients presenting with active pulmonary TB. DESIGN: A prospective study of 50 patients admitted to a single hospital. PATIENTS: Fifty hospitalized adults with newly diagnosed sputum positive pulmonary TB (mean age 38 years, mean body mass index 18 kg/m2, mean albumin 28 g/l) were studied. MEASUREMENTS: Adrenal reserve was assessed by intravenous tetracosactrin administration with measurement of basal and stimulated cortisol concentrations. Basal ACTH, thyroid and gonadal hormones were also measured. RESULTS: The mean basal serum cortisol was 625 nmol/l (range 394-1185). Basal plasma ACTH was undetectable (< 4.4 pmol/l) in 32, normal in 17 (mean 11.45, range 4.4-24.9 pmol/l) and elevated in one (54.2 pmol/l) subjects and did not correlate with cortisol. The mean increment in cortisol following tetracosactrin was 256 nmol/l (range 0-650) and was unrelated to basal cortisol or ACTH. All 50 patients had a stimulated plasma cortisol exceeding 550 nmol/l, indicating intact adrenal reserve. Ninety-two per cent of patients had the sick euthyroid syndrome, 72% of males had hypogonadotrophic hypogonadism and 4% of patients tested positive for the human immunodeficiency virus. CONCLUSIONS: Hypoadrenalism is uncommon in active pulmonary TB despite frequent dysfunction of the thyroid and gonadal axes.
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