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Alanina aminotransferasa como marcador en el diagnóstico de síndrome metabólico y riesgo cardiovascular en niños con obesidad / Alanine aminotransferase as a marker for diagnosing metabolic syndrome and cardiovascular risk in obese children
Cabrera, Ysel; Martínez, Melissa; Cabello, Almendra; Pereyra, Samuel; Villafuerte, Susan; Cabello, Emilio.
  • Cabrera, Ysel; Hospital Nacional Cayetano Heredia. Lima. PE
  • Martínez, Melissa; Hospital Nacional Cayetano Heredia. Lima. PE
  • Cabello, Almendra; Peruana Cayetano Heredia. Facultad de Medicina Alberto Hurtado. Lima. PE
  • Pereyra, Samuel; Hospital Nacional Cayetano Heredia. Lima. PE
  • Villafuerte, Susan; Hospital Nacional Cayetano Heredia. Lima. PE
  • Cabello, Emilio; Hospital Nacional Cayetano Heredia. Lima. PE
Acta méd. peru ; 36(4): 253-258, oct.-dic 2019. ilus, tab
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1141955
RESUMEN

Objetivo:

Evaluar la alanina aminotransferasa (ALT) como marcador en el diagnóstico de síndrome metabólico (SM) y riesgo cardiovascular (RCV) en niños con obesidad exógena. Materiales y

métodos:

Estudio transversal. Se incluyeron niños con obesidad exógena de 2 a 14 años, atendidos en la Unidad de Endocrinología Pediátrica del Hospital Nacional Cayetano Heredia, entre el 2014 al 2018. Se definió enfermedad hepática no alcohólica (EHNA) considerando dos puntos de corte de ALT; en mujeres >22,1U/L y >44U/L, en varones >25,8U/L y >50U/L. Se definió SM según la Academia Americana de Pediatría y RCV con TG/HDL-C ≥3,5. Aplicamos Chi cuadrado, considerándose significativo p<0,05. Estimamos sensibilidad(S), especificidad (E) y likelihood ratios (LR).

Resultados:

Se incluyeron 347 niños obesos (54,7% varones). La frecuencia de EHNA fue de 23,1%. La sensibilidad y especificidad para el diagnóstico de SM con ALT >22,1U/L y >25,8U/L fue 79,4% y 37,6% respectivamente y, con ALT>44U/L y >50U/L fue 28,6% y 83,3%. La ALT con punto de corte mayor en conjunto con TG/HDL-C≥3,5 mostró una especificidad del 96,9% y un likelihood ratio + (LR+) de 6,7.

Conclusión:

La ALT con un punto de corte >44U/L en mujeres y >50U/L en varones, es un marcador bioquímico útil en la identificación de SM y riesgo cardiovascular en niños con obesidad exógena desde los primeros años de vida.
ABSTRACT

Objective:

To assess alanine aminotransferase (ALT) as a marker for diagnosing metabolic syndrome (MS) and cardiovascular risk in children with exogenous obesity. Materials and

Methods:

This is a cross-sectional study. Children with exogenous obesity between 2 and 14 years of age seen in the Pediatric Endocrinology Unit at Cayetano Heredia Hospital between 2014 and 2018 were included. Non alcoholic liver disease was defined considering two ALT cutoff points >22.1 U/L and >44 U/L in females and >25.8 U/L and >50 U/L in males. MS was defined according to the American Academy of Pediatrics criteria, and cardiovascular risk was defined with TG/HDL-C ratio ³3.5. We used chi-square test, and p<0.05 was deemed as significant. We estimated sensitivity (S), specificity (E) and likelihood ratios (LR).

Results:

Three-hundred and forty-seven obese children were included (54.7% were male). Non-alcoholic liver disease frequency was 23.1%. Sensitivity and specificity values for diagnosing MS with ALT >22.1 U/L and >25.8 U/L were 79.4% and 37.6%, respectively; and with ALT >44 U/L and 50 U/L these values were 28.6% and 83.3%. ALT levels with higher cutoff values, together with a ³3.5 TG/HDL-C ratio showed 96.9% specificity and 6.7 likelihood ratio (LR+).

Conclusion:

ALT levels with a >44 U/L cutoff value in females and >50 U/L in males is a useful biochemical marker for identifying MS and determining cardiovascular risk in children with exogen obesity during their early years of life.

Full text: Available Index: LILACS (Americas) Type of study: Diagnostic study / Etiology study / Observational study / Prevalence study / Prognostic study / Risk factors Language: Spanish Journal: Acta méd. peru Journal subject: Medicine Year: 2019 Type: Article Affiliation country: Peru Institution/Affiliation country: Hospital Nacional Cayetano Heredia/PE / Peruana Cayetano Heredia/PE

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Full text: Available Index: LILACS (Americas) Type of study: Diagnostic study / Etiology study / Observational study / Prevalence study / Prognostic study / Risk factors Language: Spanish Journal: Acta méd. peru Journal subject: Medicine Year: 2019 Type: Article Affiliation country: Peru Institution/Affiliation country: Hospital Nacional Cayetano Heredia/PE / Peruana Cayetano Heredia/PE