Intensive Insulin Protocol Improves Glucose Control and Is Associated with a Reduction in Intensive Care Unit Mortality

Charles C. Reed, Ronald M. Stewart, Michele Sherman, John G. Myers, Michael G. Corneille, Nanette Larson, Susan Gerhardt, Randall Beadle, Conrado Gamboa, Daniel Dent, Stephen M. Cohn, Basil A. Pruitt

Research output: Contribution to journalArticlepeer-review

95 Scopus citations


Background: Intensive insulin therapy to maintain serum glucose levels between 80 and 110 mg/dL has previously been shown to reduce mortality in the critically ill; recent data, however, have called this benefit into question. In addition, maintaining uniform, tight glucose control is challenging and resource demanding. We hypothesized that, by use of a protocol, tight glucose control could be achieved in the surgical trauma intensive care unit (STICU), and that improved glucose control would be beneficial. Study Design: During the study period, a progressively more rigorous approach to glucose control was used, culminating in an implemented protocol in 2005. We reviewed STICU patients' blood glucose levels, measured by point-of-care testing, from 2003 to 2006. Mortality was tracked over the course of the study, and patient charts were retrospectively reviewed to measure illness and injury severity. Results: Mean blood glucose levels steadily improved (p < 0.01). In addition to absolute improvements in glucose control, total variability of glucose ranges in the STICU steadily diminished. A reduction in STICU mortality was temporally associated with implementation of the protocol (p < 0.01). There were fewer intraabdominal abscesses and fewer postinjury ventilator days after implementation of the protocol. There was a small increase in the incidence of clinically relevant hypoglycemia. Conclusions: Improvements in glucose control in the ICU can be achieved by using a protocol for intensive insulin therapy. In our ICU, this was temporally associated with a significant reduction in mortality.

Original languageEnglish (US)
Pages (from-to)1048-1054
Number of pages7
JournalJournal of the American College of Surgeons
Issue number5
StatePublished - May 2007

ASJC Scopus subject areas

  • General Medicine


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