Association Between a Virtual Glucose Management Service and Glycemic Control in Hospitalized Adult Patients: An Observational Study

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Abstract

Background:

Inpatient hyperglycemia is common and is linked to adverse patient outcomes. New methods to improve glycemic control are needed.

Objective:

To determine whether a virtual glucose management service (vGMS) is associated with improved inpatient glycemic control.

Design:

Cross-sectional analyses of three 12-month periods (pre-vGMS, transition, and vGMS) between 1 June 2012 and 31 May 2015.

Setting:

3 University of California, San Francisco, hospitals.

Patients:

All nonobstetric adult inpatients who underwent point-of-care glucose testing.

Intervention:

Hospitalized adult patients with 2 or more glucose values of 12.5 mmol/L or greater (≥225 mg/dL) (hyperglycemic) and/or a glucose level less than 3.9 mmol/L (<70 mg/dL) (hypoglycemic) in the previous 24 hours were identified using a daily glucose report. Based on review of the insulin/glucose chart in the electronic medical record, recommendations for insulin changes were entered in a vGMS note, which could be seen by all clinicians.

Measurements:

Proportion of patient-days classified as hyperglycemic, hypoglycemic, and at-goal (all measurements ≥3.9 and ≤10 mmol/L [≥70 and ≤180 mg/dL] during the pre-vGMS, transition, and vGMS periods).

Results:

The proportion of hyperglycemic patients decreased by 39%, from 6.6 per 100 patient-days in the pre-vGMS period to 4.0 per 100 patient-days in the vGMS period (difference, −2.5 [95% CI, −2.7 to −2.4]). The hypoglycemic proportion in the vGMS period was 36% lower than in the pre-vGMS period (difference, −0.28 [CI, −0.35 to −0.22]). Forty severe hypoglycemic events (<2.2 mmol/L [<40 mg/dL]) occurred during the pre-vGMS period compared with 15 during the vGMS period.

Limitation:

Information was not collected on patients' concurrent illnesses and treatment or physicians' responses to the vGMS notes.

Conclusion:

Implementation of the vGMS was associated with decreases in hyperglycemia and hypoglycemia.

Primary Funding Source:

National Institutes of Health, the Wilsey Family Foundation, and the UCSF Clinical & Translational Science Institute.

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