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Hemoglobin A1c Has Suboptimal Performance to Diagnose and Monitor Diabetes Mellitus in Patients with Cirrhosis

Background Glycated hemoglobin A1c (HbA1c) is routinely used to diagnose and monitor type 2 diabetes mellitus (T2DM) in cirrhotic patients. Remarkably, HbA1c may be falsely low in such patients. Aims We assessed the diagnostic and monitoring yield of HbA1c in cirrhotic patients with T2DM (DM-Cirr) a...

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Published in:Digestive diseases and sciences 2018-12, Vol.63 (12), p.3498-3508
Main Authors: Addepally, Naga S., George, Nayana, Martinez-Macias, Roberto, Garcia-Saenz-de-Sicilia, Mauricio, Kim, W. Ray, Duarte-Rojo, Andres
Format: Article
Language:English
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Summary:Background Glycated hemoglobin A1c (HbA1c) is routinely used to diagnose and monitor type 2 diabetes mellitus (T2DM) in cirrhotic patients. Remarkably, HbA1c may be falsely low in such patients. Aims We assessed the diagnostic and monitoring yield of HbA1c in cirrhotic patients with T2DM (DM-Cirr) and without T2DM (NoDM-Cirr). Methods We conducted a composite study allocating 21 NoDM-Cirr into a cross-sectional module and 16 DM-Cirr plus 13 controls with T2DM only (DM-NoCirr) into a prospective cohort. Oral glucose tolerance test (OGTT) was performed in NoDM-Cirr. DM-Cirr and DM-NoCirr were matched by sex, age, BMI, and T2DM treatment and studied with continuous glucose monitoring (CGM). Percent deviations from target, low/high blood glucose indexes (LBGI/HBGI) were calculated from CGM, as well as the average daily risk range (ADRR) as a marker of glucose variability. Results Overall, HbA1c and OGTT diagnostic yield agreed in 12 patients (57%, ρ  = 0.45, p  
ISSN:0163-2116
1573-2568
DOI:10.1007/s10620-018-5265-3