Accuracy of continuous glucose monitoring systems in intensive care unit patients: a scoping review
Authors' conclusion
In this scoping review of CGM accuracy in the ICU, we found great diversity in accuracy reporting. Accuracy varied depending on CGM and comparator, and may be better for intravascular CGM and potentially lower during hypoglycemia.
Study context
- Population
- Intensive care unit (ICU) patientsstudies included
- Participants
- 96 patients
- Comparison
- Subcutaneous Continuous Glucose Monitoring (CGM) vs Factory calibrated CGM vs Intravenous CGM vs Intraarterial CGM
- Outcome
- CGM accuracy (mean absolute relative difference, mean absolute relative difference (MARD))
Methodological detailsPRISMA-ScR, PubMed and EMBASE searched; 2133 studies identified
- PRISMA-ScR
- PubMed and EMBASE searched; 2133 studies identified
Main finding
As reported in the abstract
MARD
Subcutaneous CGM
6.6 to 30.5%
range
Factory calibrated CGM
9.7 to 20.6%
range
Intravenous CGM
5-14.2%
Intraarterial CGM
6.4-13%
Further findings
Study characteristics
- Observational studies
- 91.7%
- Adult patients
- 74%
- Mixed ICUs
- 47.9%
- Subcutaneous CGM systems assessed
- 80%
- Arterial blood samples as reference test
- 40.6%
- Prespecified reference test protocol mentioned
- 56.3%
Original publication
Accuracy of continuous glucose monitoring systems in intensive care unit patients: a scoping review. Intensive Care Med. Published 17 October 2024. doi:10.
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