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Purpose: Inflammation plays a critical role in the progression of COVID-19. Nonthyroidal illness syndrome (NTIS) has been increasingly recognized in affected patients. We aim to evaluate the correlation of thyroid hormones with markers of inflammation and association with disease outcome in hospitalized patients with COVID-19, and in two profiles of NTIS (low T3-normal/low FT4 vs low T3-high FT4). Methods: prospective study of 55 patients (50.9% men, median age 56 years) admitted to a non-intensive care unit for COVID-19. Infection was mild in 22%, moderate in 27.1% and severe in 50.8%; 7.41% died. T4, T3, FT4, FT3 and their ratios (T3/T4, FT3/FT4) were correlated with albumin, ferritin, fibrinogen, erythrocyte sedimentation rate [ESR], C-reactive protein [CRP], lactate dehydrogenase [LDH] and D-dimer. Results: Albumin correlated positively with T3 and hormones ratios, but negatively with FT4. T3, FT3, T3/T4 and FT3/FT4 ratios correlated inversely with ferritin, fibrinogen, ESR, CRP, LDH and D-dimer. FT4 showed direct correlation with fibrinogen and ESR. T3/T4 ratio was lower in severe compared to mild/moderate disease [7.5 (4.5-15.5) vs 9.2 (5.8-18.1); p=0.04], and lower in patients who died than in those discharged [5 (4.53-5.6) vs 8.1 (4.7-18.1); p=0.03]. A lowT3/high FT4 profile was associated with lower albumin, higher ferritin, and severity. Conclusion: In this cohort, thyroid hormones correlated with inflammation and outcome. T3 and T3/T4 ratio correlated inversely with inflammatory markers; a low T3/T4 ratio was associated with severity and poor prognosis. Patients with low T3 but high FT4 had higher ferritin, lower albumin, and more severe disease at presentation.

Purpose Inflammation plays a critical role in the progression of COVID-19. Nonthyroidal illness syndrome (NTIS) has been increasingly recognized in affected patients. We aim to evaluate the correlation of thyroid hormones with markers of inflammation and association with disease outcome in hospitalized patients with COVID-19, and in two profiles of NTIS (low T3-normal/low FT4 vs. low T3-high FT4). Methods consecutive patients admitted to a nonintensive care unit for COVID-19 were recruited. Infection was mild in 22%, moderate in 27.1% and severe in 50.8%; 7.41% died. T4, T3, FT4, FT3, and their ratios (T3/T4, FT3/FT4) were correlated with albumin, ferritin, fibrinogen, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), lactate dehydrogenase (LDH), and D-dimer. Results Fifty five patients (50.9% men, median age 56 years) were included. Albumin correlated positively with T3 and hormones ratios, but negatively with FT4. T3, FT3, T3/T4, and FT3/FT4 correlated inversely with ferritin, fibrinogen, ESR, CRP, LDH, and D-dimer. FT4 showed direct correlation with fibrinogen and ESR. T3/T4 was lower in severe compared to mild/moderate disease [7.5 (4.5–15.5) vs. 9.2 (5.8–18.1); p = 0.04], and lower in patients who died than in those discharged [5 (4.53–5.6) vs. 8.1 (4.7–18.1); p = 0.03]. A low T3/high FT4 profile was associated with lower albumin, higher ferritin, and severity. Conclusion In this cohort, thyroid hormones correlated with inflammation and outcome. T3 and T3/T4 correlated inversely with inflammatory markers; a low T3/T4 ratio was associated with severity and poor prognosis. Patients with low T3 but high FT4 had higher ferritin, lower albumin, and more severe disease at presentation.

ResumenLa infección por el virus de inmunodeficiencia humana produce una enfermedad sistémica crónica. El tratamiento con fármacos antirretrovirales altamente activos ha modificado la evolución de estos pacientes incrementando la sobrevida. En contraposición, asociadas a su enfermedad y/o a la medicación antirretroviral, se describen múltiples enfermedades crónicas que comprometen aún más la calidad de vida de estos pacientes. Nuestro objetivo es describir las alteraciones endocrinometabólicas en nuestros pacientes ambulatorios con infección por el virus de inmunodeficiencia humana y realizar una actualización del tema.AbstractThe human immunodeficiency virus causes a chronic systemic disease. Treatment with highly active antiretroviral drugs has changed the evolution of the disease, and increasing the rate of survival. However, due to the disease and/or the antiretroviral drugs, there are other multiple chronic diseases that compromise the quality of life of the patients even more. The aim of this study is to present endocrine and metabolic changes in outpatients with human immunodeficiency virus, and present an update of the related literature.