Severity of Fatigue and Its Relationship with TSH before and after Levothyroxine Replacement Therapy in Patients with Primary Hypothyroidism

Background: Fatigue is a common symptom in hypothyroidism; however, the effect of levothyroxine on fatigue has been little studied. The aim of this study was to evaluate the effect of levothyroxine on fatigue in Latino patients with primary hypothyroidism, as well as the association of TSH and free...

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Main Authors: María Guadalupe Ruíz-Pacheco, Irma Hernández, Guadalupe Hernández-Estrella, Lourdes Basurto, Guadalupe Vargas-Ortega, Baldomero González-Virla, Mario Molina-Ayala, Alex Francisco Hernández-Martínez, Rosamaría Luengas-Mondragón, Angel Alejandro Hernández-Allende, Victoria Mendoza-Zubieta, Lourdes Balcázar-Hernández
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/11/3/811
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author María Guadalupe Ruíz-Pacheco
Irma Hernández
Guadalupe Hernández-Estrella
Lourdes Basurto
Guadalupe Vargas-Ortega
Baldomero González-Virla
Mario Molina-Ayala
Alex Francisco Hernández-Martínez
Rosamaría Luengas-Mondragón
Angel Alejandro Hernández-Allende
Victoria Mendoza-Zubieta
Lourdes Balcázar-Hernández
author_facet María Guadalupe Ruíz-Pacheco
Irma Hernández
Guadalupe Hernández-Estrella
Lourdes Basurto
Guadalupe Vargas-Ortega
Baldomero González-Virla
Mario Molina-Ayala
Alex Francisco Hernández-Martínez
Rosamaría Luengas-Mondragón
Angel Alejandro Hernández-Allende
Victoria Mendoza-Zubieta
Lourdes Balcázar-Hernández
author_sort María Guadalupe Ruíz-Pacheco
collection DOAJ
description Background: Fatigue is a common symptom in hypothyroidism; however, the effect of levothyroxine on fatigue has been little studied. The aim of this study was to evaluate the effect of levothyroxine on fatigue in Latino patients with primary hypothyroidism, as well as the association of TSH and free T4 (FT4) with the severity and persistence of fatigue. Methods: A prospective study was performed in 92 patients with primary hypothyroidism. Fatigue severity scale (FSS) scores and clinical and biochemical characteristics before and at 6 months of levothyroxine were evaluated. Results: After 6 months of levothyroxine, a reduction in FSS (53 (47–57) vs. 36 (16–38); <i>p</i> = 0.001) and fatigue frequency (45.7% vs. 26.1%; <i>p</i> = 0.008) was evident. Both before and after 6 months of levothyroxine, there was a positive correlation of the FSS score with TSH and a negative correlation with FT4. Persistent fatigue was associated with a pretreatment FSS score (r = 0.75; <i>p</i> = 0.001) and diabetes (r = 0.40; <i>p</i> = 0.001). An FSS > 34 (RR 3.9 (95% CI 1.43–10.73; <i>p</i> = 0.008)), an FSS > 36 (RR 3.23 (95% CI 1.21–8.6; <i>p</i> = 0.019)), and diabetes (RR 5.7 (95% CI 1.25–9.6; <i>p</i> = 0.024)) before treatment were risk factors for persistent fatigue. Conclusions: Levothyroxine improved fatigue in most patients. Diabetes and an FSS score >34 or >36 before treatment were risk factors for persistent fatigue.
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spelling doaj.art-b1e349b11fd8476d85835b7b29526ae72023-11-17T09:45:55ZengMDPI AGBiomedicines2227-90592023-03-0111381110.3390/biomedicines11030811Severity of Fatigue and Its Relationship with TSH before and after Levothyroxine Replacement Therapy in Patients with Primary HypothyroidismMaría Guadalupe Ruíz-Pacheco0Irma Hernández1Guadalupe Hernández-Estrella2Lourdes Basurto3Guadalupe Vargas-Ortega4Baldomero González-Virla5Mario Molina-Ayala6Alex Francisco Hernández-Martínez7Rosamaría Luengas-Mondragón8Angel Alejandro Hernández-Allende9Victoria Mendoza-Zubieta10Lourdes Balcázar-Hernández11Centro Médico Nacional Siglo XXI, Department of Endocrinology, Hospital de Especialidades, Instituto Mexicano del Seguro Social, Mexico City 06720, MexicoCentro Médico Nacional Siglo XXI, Department of Endocrinology, Hospital de Especialidades, Instituto Mexicano del Seguro Social, Mexico City 06720, MexicoUnidad de Medicina Familiar No. 69, Department of Family Medicine, Instituto Mexicano del Seguro Social, Calle José María Morelos 210-232, Centro, Texcoco 56100, MexicoEndocrine Diseases Research Unit, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City 06720, MexicoCentro Médico Nacional Siglo XXI, Department of Endocrinology, Hospital de Especialidades, Instituto Mexicano del Seguro Social, Mexico City 06720, MexicoCentro Médico Nacional Siglo XXI, Department of Endocrinology, Hospital de Especialidades, Instituto Mexicano del Seguro Social, Mexico City 06720, MexicoCentro Médico Nacional Siglo XXI, Department of Endocrinology, Hospital de Especialidades, Instituto Mexicano del Seguro Social, Mexico City 06720, MexicoCentro Médico Nacional Siglo XXI, Department of Endocrinology, Hospital de Especialidades, Instituto Mexicano del Seguro Social, Mexico City 06720, MexicoFaculty of Medicine, Universidad Nacional Autónoma de México, Mexico City 04510, MexicoFaculty of Medicine, Universidad Nacional Autónoma de México, Mexico City 04510, MexicoCentro Médico Nacional Siglo XXI, Department of Endocrinology, Hospital de Especialidades, Instituto Mexicano del Seguro Social, Mexico City 06720, MexicoCentro Médico Nacional Siglo XXI, Department of Endocrinology, Hospital de Especialidades, Instituto Mexicano del Seguro Social, Mexico City 06720, MexicoBackground: Fatigue is a common symptom in hypothyroidism; however, the effect of levothyroxine on fatigue has been little studied. The aim of this study was to evaluate the effect of levothyroxine on fatigue in Latino patients with primary hypothyroidism, as well as the association of TSH and free T4 (FT4) with the severity and persistence of fatigue. Methods: A prospective study was performed in 92 patients with primary hypothyroidism. Fatigue severity scale (FSS) scores and clinical and biochemical characteristics before and at 6 months of levothyroxine were evaluated. Results: After 6 months of levothyroxine, a reduction in FSS (53 (47–57) vs. 36 (16–38); <i>p</i> = 0.001) and fatigue frequency (45.7% vs. 26.1%; <i>p</i> = 0.008) was evident. Both before and after 6 months of levothyroxine, there was a positive correlation of the FSS score with TSH and a negative correlation with FT4. Persistent fatigue was associated with a pretreatment FSS score (r = 0.75; <i>p</i> = 0.001) and diabetes (r = 0.40; <i>p</i> = 0.001). An FSS > 34 (RR 3.9 (95% CI 1.43–10.73; <i>p</i> = 0.008)), an FSS > 36 (RR 3.23 (95% CI 1.21–8.6; <i>p</i> = 0.019)), and diabetes (RR 5.7 (95% CI 1.25–9.6; <i>p</i> = 0.024)) before treatment were risk factors for persistent fatigue. Conclusions: Levothyroxine improved fatigue in most patients. Diabetes and an FSS score >34 or >36 before treatment were risk factors for persistent fatigue.https://www.mdpi.com/2227-9059/11/3/811fatiguehypothyroidismthyrotropinlevothyroxine
spellingShingle María Guadalupe Ruíz-Pacheco
Irma Hernández
Guadalupe Hernández-Estrella
Lourdes Basurto
Guadalupe Vargas-Ortega
Baldomero González-Virla
Mario Molina-Ayala
Alex Francisco Hernández-Martínez
Rosamaría Luengas-Mondragón
Angel Alejandro Hernández-Allende
Victoria Mendoza-Zubieta
Lourdes Balcázar-Hernández
Severity of Fatigue and Its Relationship with TSH before and after Levothyroxine Replacement Therapy in Patients with Primary Hypothyroidism
Biomedicines
fatigue
hypothyroidism
thyrotropin
levothyroxine
title Severity of Fatigue and Its Relationship with TSH before and after Levothyroxine Replacement Therapy in Patients with Primary Hypothyroidism
title_full Severity of Fatigue and Its Relationship with TSH before and after Levothyroxine Replacement Therapy in Patients with Primary Hypothyroidism
title_fullStr Severity of Fatigue and Its Relationship with TSH before and after Levothyroxine Replacement Therapy in Patients with Primary Hypothyroidism
title_full_unstemmed Severity of Fatigue and Its Relationship with TSH before and after Levothyroxine Replacement Therapy in Patients with Primary Hypothyroidism
title_short Severity of Fatigue and Its Relationship with TSH before and after Levothyroxine Replacement Therapy in Patients with Primary Hypothyroidism
title_sort severity of fatigue and its relationship with tsh before and after levothyroxine replacement therapy in patients with primary hypothyroidism
topic fatigue
hypothyroidism
thyrotropin
levothyroxine
url https://www.mdpi.com/2227-9059/11/3/811
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