ESPE2015 Poster Category 3 Thyroid (64 abstracts)
aPaediatric Endocrinology, Diyarbakir Childrens State Hospital, Diyarbakir, Turkey; bPaediatrics, Diyarbakir Childrens State Hospital, Diyarbakir, Turkey
Background: Euthyroid sick syndrome (ESS), also known as non-thyroidal illness or low T3 syndrome, is defined as low T3, low/normal T4 and inability of rise in TSH due to extrathyroidal diseases. Any condition resulting stress such as infectious diseases, sepsis, metabolic disorders and severe malnutrition can associate to ESS. Patients presented with type 1 diabetes mellitus (T1DM) are usually being screened for other autoimmune diseases including autoimmune thyroiditis from the blood samples collected at presentation.
Objective and hypotheses: Diabetic ketoacidosis (DKA) is characterised with metabolic decompensation that produces a profound stress. The aim of the present study is to evaluate the development of ESS in patients with T1DM who presented with DKA.
Methods: Patients presented with T1DM at the Diyarbakir Childrens State Hospital Paediatric Endocrinology Clinic between the years 2011-2013 were included. Thyroid function test (TFT), blood gases analysis, leukocyte count and C-reactive protein (CRP) level were measured at the time of the presentation.
Results: Study included 83 patients (47 females) with T1DM. The mean age of the diagnosis was 8.8±4.2 years (range: 0.517 years). Number of patients who had DKA at presentation was 54 (65.1%). In total 38 out of 83 (45.8%) patients had ESS. The frequency of ESS in patients with DKA (n=32/54; %59.3) was higher than those of patients without DKA (n=6/29; %20.7) (P<0.0001). The frequency of ESS in the patients with elevated CRP (46.1%) was not statistically different from those of patients with normal CRP (43.9%) (P=0.887). In all patients who had ESS at presentation, TFTs recovered to normal range during follow up with no need of thyroid hormone replacement.
Conclusion: ESS was more prevalent in patients who presented with DKA. Of which all became euthyroid with no need of treatment. Having or not having infection at presentation has not statistically significant impact on the development of ESS. These results suggested postponing the evaluation TFTs till recovery of DKA.