Significance of leukocyte subtypes and thyroid function tests in differential diagnosis of thyrotoxicosis / 吉林大学学报(医学版)

ABSTRACT

Objective:To explore the differences of leukocyte subtypes and thyroid function of the patients with different thyrotoxicosis diseases,and to clarify the practical significance of leukocyte subtypes and thyroid function tests in the differential diagnosis of Graves disease thyrotoxicosis and destructive thyrotoxicosis.Methods:A total of 33 patients with Graves disease thyrotoxicosis and 30 patients with destructive thyrotoxicosis confirmed by clinical and laboratory examination were selected; the levels of neutrophils (Ne),lymphocyte (Ly),basophils (Ba), eosinophil (Eo)and mononuclear cells (Mo),serum free thyroxine (FT4),three free iodine thyroid former glycine (FT3),and thyroid stimulating hormone (TSH)of the patients in two groups were analyzed and the receiver operator characteristic curve (ROC)was used to evaluate the values of the indicators with statastical significance in the differential diagnosis of Graves disease thyrotoxicosis and destructive thyrotoxicosis.Results:The levels of serum Eo,FT4 and FT3,and the modified data Eo/Mo,Eo × FT3 / Mo of the patients in Graves disease thyrotoxicosis group were significantly higher than those in destructive thyrotoxicosis group (P <0.05);the levels of TSH and Mo of the patients were lower than those in destructive thyrotoxicosis group (P < 0.05).The ROC curve analysis results showed that the sensitivities and specificities of Eo,Eo/Mo,Eo×FT3/Mo in the differential diagnosis of two diseases were good, and the best diagnostic boundaries were 1.54, 0.34, and 3.94. Conclusion:Eo,Mo,TSH,FT3,FT4,Eo/Mo,and EoxFT3/Mo could be regarded as the basis in the differential diagnosis of Graves disease thyrotoxicosis and destructive thyrotoxicosis ,and the practical significances of Eo,Eo/Mo,and Eo×FT3 /Mo in the differential diagnosis of Graves disease thyrotoxicosis and destructive thyotoxicosis are bigger.