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Improving IV Insulin Administration in a Community Hospital

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Published on: June 11, 2012

A novel computerized fading memory algorithm for glycemic control in postoperative surgical patients.

Mayumi Horibe¹, Bala G Nair, Gary Yurina

¹Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, Washington, USA. Mayumi.Horibe@va.gov

Anesthesia and Analgesia

|June 7, 2012

Summary

A new computerized fading memory (FM) algorithm improved glycemic control in surgical intensive care unit (SICU) patients. This novel algorithm achieved better glucose management with less variability and reduced insulin use compared to the existing VA algorithm.

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Area of Science:

Critical Care Medicine
Endocrinology
Medical Informatics

Background:

Hyperglycemia is prevalent in critically ill patients, correlating with adverse outcomes.
Existing insulin-infusion algorithms require optimization for better glycemic control.
A novel computerized fading memory (FM) algorithm was previously developed.

Purpose of the Study:

To evaluate the safety and efficacy of the FM algorithm in surgical intensive care unit (SICU) patients.
To compare the FM algorithm's performance against the conventional VA algorithm.
To assess the impact of the FM algorithm on hypoglycemia, hyperglycemia, and glycemic variability.

Main Methods:

A randomized study involving 48 elective surgery patients in the SICU.
Comparison of the FM algorithm against the VA algorithm for insulin infusion.
Monitoring of blood glucose levels hourly for the first 8 hours of SICU stay.
Analysis of hypoglycemia, hyperglycemia, time to target glucose, glycemic variability, and insulin usage.

Main Results:

The FM algorithm resulted in no hypoglycemia, unlike the VA algorithm which had one episode.
All patients on the FM algorithm achieved target glucose levels within 8 hours.
The FM algorithm demonstrated a 28% reduction in glycemic variability and used less insulin (1.1 U/h less) compared to the VA algorithm.

Conclusions:

The computerized FM algorithm offers superior glycemic control in SICU patients.
The FM algorithm safely manages blood glucose without inducing hypoglycemia.
This novel algorithm reduces glycemic variability and insulin requirements, improving patient care.