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Updated: Aug 20, 2025

Improving IV Insulin Administration in a Community Hospital
Published on: June 11, 2012
Hybrid Closed-Loop Insulin Pump Technology Can Be Safely Used in the Inpatient Setting
Melissa N Pelkey1, Mary E Boyle2, Ashley Long3
1Mayo Clinic Alix School of Medicine, Scottsdale, Arizona.
Hybrid closed-loop (HCL) systems, or automated insulin delivery, are safe for inpatient use. Continued HCL use in hospitalized patients demonstrated comparable glycemic control and no increased adverse events compared to manual insulin pump use.
Area of Science:
- Endocrinology
- Metabolic Diseases
- Medical Devices
Background:
- Hybrid closed-loop (HCL) systems, also known as automated insulin delivery, are increasingly used for diabetes management.
- Assessing inpatient safety is crucial as more patients use these systems outside the hospital.
Purpose of the Study:
- To evaluate the safety and efficacy of continued hybrid closed-loop system use in hospitalized patients.
- To compare glycemic control and adverse events in HCL users versus other insulin delivery methods during hospitalization.
Main Methods:
- Retrospective analysis of 71 patients using HCL technology upon hospital admission (June 2020 - June 2021).
- Patients categorized into: HCL users, manual insulin pump users, and pump removed groups.
- Comparison of demographic data, HbA1c, glucose levels, hyperglycemia, and hypoglycemia frequency.
Main Results:
- No significant differences in mean glucose levels, hyperglycemia, or hypoglycemia between HCL users, manual pump users, and pump removed groups.
- No adverse events reported, including diabetic ketoacidosis, pump site complications, infection, or equipment malfunction.
- Demographics and clinical characteristics were similar across all patient groups.
Conclusions:
- Continued use of hybrid closed-loop technology during hospitalization is safe.
- Glycemic control in HCL users was comparable to manual insulin pump and basal-bolus insulin therapy.
- This preliminary review supports HCL use in inpatient settings.
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