Continuous glucose monitoring in the intensive care unit during the COVID-19 pandemic

Shivani Agarwal, Justin Mathew, Georgia M. Davis, Alethea Shephardson, Ann Levine, Rita Louard, Agustina Urrutia, Citlalli Perez-Guzman, Guillermo E. Umpierrez, Limin Peng, Francisco J. Pasquel

Research output: Contribution to journalArticlepeer-review

65 Scopus citations


OBJECTIVE Real-time continuous glucose monitoring (rtCGM) in critically ill hospitalized patients holds promise; however, real-world data are needed. RESEARCH DESIGN AND METHODS We placed Dexcom G6 CGM on intensive care unit (ICU) patients at Montefiore Medical Center with confirmed coronavirus disease 2019 (COVID-19) infection and glycemic variability. We analyzed inpatient CGM accuracy using point-of-care (POC) glucose–CGM matched pairs and included patients for analysis regardless of clinical status. RESULTS We included 11 patients with CGM: 8 on continuous insulin infusion (CII), 8 on vasopressors, 8 intubated, 4 on high-dose glucocorticoids, 6 on renal replacement therapy, and 2 with anasarca. Accuracy was 12.58% for mean and 6.3% for median absolute relative difference. CGM reduced POC testing by ∼60% for patients on CII. CONCLUSIONS In this real-world preliminary analysis of rtCGM during critical illness, we demonstrate early feasibility, considerable accuracy, and meaningful reduction in the frequency of POC glucose testing.

Original languageEnglish (US)
Pages (from-to)847-849
Number of pages3
JournalDiabetes care
Issue number3
StatePublished - 2021

ASJC Scopus subject areas

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism
  • Advanced and Specialized Nursing


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