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J Orthop Trauma. 2013 Jan;27(1):16-21. doi: 10.1097/BOT.0b013e31825d60e5.

Stress-induced hyperglycemia as a risk factor for surgical-site infection in nondiabetic orthopedic trauma patients admitted to the intensive care unit.

Author information

1
Division of Orthopedic Trauma, Vanderbilt Orthopedic Institute, Vanderbilt University Medical Center, Nashville, TN, USA.

Abstract

OBJECTIVES:

The aim of this study was to evaluate the association between stress-induced hyperglycemia and infectious complications in nondiabetic orthopedic trauma patients admitted to the intensive care unit (ICU).

DESIGN:

: This study was a retrospective review.

SETTING:

The study was conducted at an academic level-1 trauma center.

PATIENTS:

One hundred and eighty-seven consecutive trauma patients with isolated orthopedic injuries were studied.

INTERVENTION:

: Blood glucose values during initial hospitalization were evaluated. The admission blood glucose (BG) and hyperglycemic index (HGI) were determined for each patient.

MAIN OUTCOME MEASURES:

Perioperative infectious complications: pneumonia, urinary tract infection (UTI), surgical-site infection (SSI), sepsis were the outcome measures.

RESULTS:

An average of 21.5 BG values was obtained for each patient. The mean ICU and hospital length of stay was 4.0 ± 4.9 and 10.0 ± 8.1 days, respectively. Infections were recorded in 43 of 187 patients (23.0%) and SSIs specifically documented in 16 patients (8.6%). Open fractures were not associated with SSI (8/83, 9.6% vs. 8/104, 7.7%). There was no difference in admission BG or HGI and infection. However, there was a significant difference in HGI when considering SSI alone (2.1 ± 1.7 vs. 1.2 ± 1.1). Patients with an SSI received a greater amount of blood transfusions (14.9 ± 12.1 vs. 4.9 ± 7.6). No patient was diagnosed with a separate infection (ie, pneumonia, UTI, bacteremia) before SSI. There was no significant difference in injury severity score among patients with an SSI (11.1 ± 4.0 vs. 9.6 ± 3.0). Multivariable regression testing with HGI as a continuous variable demonstrated a significant relationship (odds ratio: 1.8, 95% confidence interval: 1.3-2.5) with SSI after adjusting for blood transfusions (odds ratio: 1.1, 95% confidence interval: 1.1-1.2).

CONCLUSIONS:

: Stress-induced hyperglycemia demonstrated a significant independent association with SSIs in nondiabetic orthopedic trauma patients who were admitted to the ICU.

LEVEL OF EVIDENCE:

Prognostic Level II. See Instructions for Authors for a complete description of levels of evidence.

PMID:
22588532
PMCID:
PMC3507335
DOI:
10.1097/BOT.0b013e31825d60e5
[Indexed for MEDLINE]
Free PMC Article
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