2019, Número 1
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Rev Mex Patol Clin Med Lab 2019; 66 (1)
Correlación entre dos métodos de determinación de hemoglobina glicosilada en pacientes diabéticos mexicanos para control glucémico
Gastélum-Cano JM, García-Alcalá H, Rodríguez-Gallegos AB, Fragoso-Flores J, Vera-Balderas AM
Idioma: Ingles.
Referencias bibliográficas: 35
Paginas: 13-19
Archivo PDF: 252.10 Kb.
RESUMEN
La hemoglobina glicosilada (HbA
1c) es una molécula derivada de la unión no enzimática de glucosa en la cadena β de hemoglobina (Hb) A propuesta por la Sociedad Americana de Diabetes (ADA por sus siglas en inglés) como la mejor prueba para evaluar control glucémico a largo plazo. La precisión en su determinación es de gran importancia. El objetivo del presente estudio fue analizar correlación analítica y determinar concordancia en la clasificación de control glucémico de dos métodos : cromatografía líquida de alta resolución de intercambio iónico (HPLC) y electroforesis capilar (EC). Se determinó HbA1c de un total de 249 muestras (n) de pacientes diabéticos por ambos métodos. Se analizó correlación, gráficos de Bland-Altman y la sensibilidad (Sn) especificidad (Sp) y valores predictivos positivos y negativos (VPP y VPN) de EC para identificar pacientes controlados (HPLC HbA
1c ‹ 7%). El análisis de correlación fue estadísticamente significativo (r = 0.9906, p ‹ 0.0001), Kappa de 0.959 (p ‹ 0.05), el gráfico Bland-Altman muestra buena concordancia. Sn, Sp, VPP y VPN fueron, respectivamente, 98%, 98%, 99% y 97%. No se apreciaron diferencias considerables en la clasificación de control glucémico. Por lo cual, EC en Capillarys 2FP parece un buen método alternativo para determinación de HbA1c para control glucémico.
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