EVALUATION AND ASSOCIATION OF THYROID PROFILE WITH LIVER FUNCTION PARAMETERS AND LDL LEVELS BEFORE AND AFTER I131 THERAPY

Rubaida Mehmood, Sabika Rafiq, Momna Warraich, Dr.Daniyal Warraich, Rida Sana, Dr Rubina Mukhtar, Dr Sidrah Mahmood Ali

Abstract


Abstract

Background: The pathogenesis of liver function abnormalities and cardiac dysfunction in hyperthyroid patients after I131 treatment is still unclear. The aim of this study was to determine the effects of radioiodine I131 on liver function parameters, lactate dehydrogenase(LDH) and low-density lipoproteins(LDL) before and after I131 therapy in hyperthyroidism patients.

Method: Total 52 patients of hyperthyroidism recommended for I131were involved in this study with age ranging from 12–65 years (mean age=38.6±14.8 & BMI=11.5±3.7). The significance of the differences between the results of 1st, 2nd and 3rd time serum analysis was assessed by unpaired student’s t-test. Associations between the parameters were assessed by Spearman correlation analysis. 

Results: Significant variations were observed for thyroid profile FT3(p=0.04), FT4(p=0.01), TSH(p=0.005) during the follow-up treatment. Before taking I131 (serum analyzed at 1st time), negative correlation of FT3 with AST (r=-0.458, p=0.032) and LDL (r=-0.454, p=0.039) were observed. During 2nd time (after stopping carbimazole) no correlation were assessed. Two months after administration of I131 drops, significant negative association of FT3 (r=-0.62, p=0.04) and FT4(r=-0.61, p=0.02) with ALB were observed. FT3(r=-0.82, p=0.00) & FT4 (r=-0.71, p=0.00) also showed negative correlation with LDL after I131 therapy. Whereas TSH showed significant positive association with ALB (r=0.61, p=0.01) and LDL (r=0.70, p=0.00) respectively.

Conclusion: Our findings suggest that the association of TFTs with biochemical parameters in patients with goiter recommended for iodine therapy is an important diagnostic and therapeutic tool.  The increase in transaminases and LDL level after administration of I131 therapy may adversely affect heart and liver function.


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