Efecto del consumo concomitante de inhibidores de bomba protones y levotiroxina : revisión sistemática y metaanálisis


Autoria(s): Guzmán Prado, Yuli; Sierra Arango, Fernando; Kattah Calderon, William
Contribuinte(s)

Molina, Carlos Federico

Data(s)

22/09/2016

31/12/1969

Resumo

Estudios afirman que la acidez gástrica es importante en la absorción de levotiroxina (LT4) con resultados controversiales sobre la interacción entre inhibidores de bomba de protones (IBP) y LT4. El objetivo del estudio fue establecer el efecto del uso concomitante de LT4 e IBP en los niveles de TSH en pacientes adultos con hipotiroidismo primario. Se realizó una revisión sistemática mediante búsqueda en Medline, Embase, Lilacs, Bireme, Scielo, Cochrane y Universidad de York, Access Pharmacy, Google Scholar, Dialnet y Opengray. La búsqueda no se limito por lenguaje. Se evaluó el efecto en la diferencia de medias de TSH luego del consumo de LT4 y luego del consumo concomitante con IBP. Se hizo un metaanálisis, análisis de subgrupos y análisis de sensibilidad utilizando el programa Review Manager 5.3. Se eligieron 5 artículos para el análisis cualitativo y 3 para el metaanálisis. La calidad de los estudios fue buena y el riesgo de sesgos bajo. La diferencia de medias obtenida fue 0.21 mUI/L (IC95%: 0.02-0.40; p=0.03; I2:0%). En el análisis de subgrupos en pacientes mayores de 55 años la diferencia de medias fue 0.21 mUI/L (IC95%: 0.01-0.40; p=0.27; I2:19%). En el análisis de sensibilidad se excluyo el estudio con mayor muestra y la diferencia de medias fue 0.49 mUI/L (IC95%: -0.12 a 1.11; p=0.12; I2:0%). La diferencia de medias de TSH luego del consumo concomitante no se considera clínicamente significativa pues no representa riesgo para el paciente. Son necesarios estudios clínicos aleatorizados y evaluar el efecto en los niveles de T4 libre.

Several studies claim that gastric acid has an important role on levothyroxine (LT4) absorption with controversial findings about proton-pump inhibitors (PPI) and LT4 interaction. The aim of this study was to evaluate the effect of concomitant use of PPI and LT4 on TSH level in adult patients with primary hypothyroidism. A systematic review was conducted using databases including: Medline, Embase, Lilacs, Bireme, Scielo, Cochrane and University of York, Access Pharmacy, Google Scholar, Dialnet and Opengray. Summaries of intervention effects were provided by calculating TSH mean differences, 95% confidence intervals and two sided p values. Heterogeneity between the studies on effect measures was assessed using both the χ2 test and the I2 statistic. Additional subgroup analyses by age and sensitivity analyses were carried out. Review Manager program endorsed by the Cochrane Collaboration was used. We identified 5 elegible studies for qualitative analysis and 3 for meta-analysis. The mean difference obtained was 0.21 mIU/L (95% CI: 0.02 to 0.40, p = 0.03; I2: 0%). In the subgroup analysis (over 55 years) the mean difference was 0.21 mIU/L (95% CI: 0.01 to 0.40, p = 0.27; I2: 19%). In the sensitivity analysis the study with larger sample was excluded and the mean difference was 0.49 mIU/L (95% CI -0.12 to 1.11, p = 0.12; I2: 0%). The difference on TSH value after LT4 and PPI consumption does not represent a clinically significant difference. However, it is necessary to carry out randomized controlled trials and to evaluate the effect on free T4 level.

Formato

application/pdf

Identificador

http://repository.urosario.edu.co/handle/10336/12402

Idioma(s)

spa

Publicador

Facultad de medicina

Direitos

info:eu-repo/semantics/embargoedAccess

Fonte

instname:Universidad del Rosario

reponame:Repositorio Institucional EdocUR

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TMEP

Palavras-Chave #616 #Hipotiroidismo #Úlcera Péptica #Reflujo Gastroesofágico #Hypothyroidism #Peptic ulcer #Dyspepsia #Gastroesophageal reflux
Tipo

info:eu-repo/semantics/masterThesis

info:eu-repo/semantics/acceptedVersion