Accuracy of Dexcom One+ in Patients with Diabetes or Stress Hyperglycemia Hospitalized in Cardiac Intensive Care Unit
Authors' conclusion
In patients in CICU, the Dexcom One+ system showed acceptable accuracy and could support glucose monitoring.
Study context
- Population
- Patients with known diabetes or hyperglycemia on admission >140 mg/dL hospitalized in the cardiac ICU for acute coronary syndrome and/or HF, September 2024 to May 2025; 39 with previously diagnosed T2D, aged 73.5 ± 9.6 years, mean HbA1c 7.1 ± 1.3%999 paired samples
- Participants
- 48 patients
- Comparison
- Dexcom One+ continuous glucose monitoring (CGM) vs standard blood glucose measurements
- Outcome
- Accuracy by mean absolute relative difference (MARD)
Performance
As reported in the abstract
Accuracy: MARD vs reference blood glucose
Overall mean absolute relative difference (MARD)
11.6%
95% CI 10.9–12.2
Further findings
Clinical performance: Consensus Error Grid analysis
- Readings in Zone A
- 93.5%
- Readings in Zone B
- 6.1%
- Readings in Zone C
- 0.4%
- No readings were found in Zone D + E
Safety
Skin reactions
- Mild hematoma at insertion site
- 1
Original publication
Accuracy of Dexcom One+ in Patients with Diabetes or Stress Hyperglycemia Hospitalized in Cardiac Intensive Care Unit. Diabetes Technol Ther. Published 23 January 2026. doi:10.
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