Background and aims
Few studies have reported on the use of continuous glucose monitoring (CGM) during the Covid-19 pandemic. We aimed to examine glycemic control metrics using flash glucose monitoring during insulin treatment and the clinical outcome in hospitalized patients with COVID-19.
Methods
Prospective, single-center cohort of adult patients diagnosed with type 2 diabetes or hyperglycemia and COVID-19 infection treated with basal bolus insulin regimen. Glycemic control was assessed with the use of intermittent Freestyle Libre flash glucose monitoring during the hospital stay. Outcome of interest were time in range [TIR], time above [TAR] and below [TBR] range, glycemic variability [coefficient of variation [% CV]), and differences in a composite of complications including ICU admission, acute respiratory distress syndrome (ARDS) and acute kidney injury.
Results
A total of 60 patients were included (44 known diabetes and 16 new onset hyperglycemia). In total 190,080 data points of CGM were available, of which 72.5% of values were within the target area [TIR (70–180 mg/dL)], 22% TAR (>180 mg/dL), and 3% were TBR (<70 mg/dL). During treatment, the coefficient of variation (% CV) was 30%. There were no association with TIR, but patients with TAR >180 mg/dl had higher rates of a composite of complications (22.5% vs 16%, p = 0.04).
Conclusions
Basal bolus insulin regimen was safe and effective in achieving inpatient glycemic control in most patients with COVID-19. The association between TAR and complications indicates the need for improved inpatient glycemic control in hospitalized patients with COVID-19.
Introducción: La glucometría tiene un rol critico en el manejo del paciente tratado con insulina. Factores técnicos y medioambientales afectan significativamente la precisión de los glucómetros. El objetivo es establecer la precisión clínica y numérica de los glucómetros usados en Colombia, comparado con glucemia central.
Métodos: Estudio de pruebas diagnósticas. Se evaluaron glucómetros del plan básico de salud (GluNeo,GlucoQuick,Optium Neo,Select Plus y Gluco Quick Diamond Voice). Se incluyeron adultos tratados con bomba de infusión de insulina integrada a sistema de monitoreo continuo. Se clasificaron las muestras en: >100mg dL,>70 y 100 mg/dL,?70 mg/dL. Para glucosa ?100 mg/dL se administró un bolo de insulina utilizando la función de bolus wizard. Se evalúo la precisión numérica utilizando la media absoluta de la diferencia relativa (MARD) y la precisión clínica según la proporción las mediciones en las zonas A+B de la gradilla de Clarke y la gradilla de Parkes (Consensus).
Resultados. Se analizaron 830 mediciones. Todos los dispositivos cumplieron requisitos de precisión para glucosa >100mg/dL. Optium Neo y Gluco Quick Diamond Voice, alcanzaron estándares de cumplimiento al combinar todos los niveles de medición de 12,1% y 13,9%, respectivamente. La precisión clínica para estos dos dispositivos fue de 98% y >95% según gradilla Parkes (Consensus) y Clarke, respectivamente. Se evidenció mayor variabilidad de los resultados en el rango ?70mg/dL.
Conclusiones. La precisión numérica fue adecuada para los dispositivos evaluados para valores de glucosa capilar >100mg/dL y disminuye con valores <100mg/dL. Gluco Quick Diamond Voice y Optium Neo tuvieron adecuada precisión clínica y numérica global.
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