Abstract
In patients with normal liver function, patients with acute or chronic thyroid disease are more likely to develop liver dysfunction. Although the mechanisms underlying this process are not yet fully understood, it has been shown that hypothyroidism can lead to hepatic injury. We evaluated haematological function trends in patients with differentiated thyroid cancer (DTC) at baseline and approximately 4 weeks after l-thyroxine withdrawal before radioactive iodine ablation. This is a retrospective study, and 157 patients were enrolled. Logistic regression analysis was used to find significant predictors. Four weeks after LT4 withdrawal, 64 patients belonged to the group of liver injury, and 93 patients belonged to the group of normal liver function. Univariate analysis determined that platelet count (PC) (P=0.005), mean platelet volume (MPV) (P=0.013), platelet distribution width (PDW) (P=0.039) and absolute lymphocyte count (ALC) (P=0.008) were responsible risk factors for liver injury in DTC patients after withdrawal of levothyroxine (l-thyroxine). Multivariate analysis showed that slight increases in PC (OR: 2.243, P: 0.024) and ALC (OR: 0.398, P: 0.017) were closely associated with liver injury in DTC patients after 4 weeks LT4 withdrawal before radioactive iodine ablation. Our results suggest that PC and ALC are independent predictors of hypo-related liver injury. Our study is the first to suggest that haematological indices can be used for predicting the development and progression of hypo-related liver disorders.
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