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. 2016 May;18(3):344-50.
doi: 10.1177/1099800415619227. Epub 2016 Jan 19.

Glycemic Status and Infection Risk in Nondiabetic Autologous Hematopoietic Cell Transplantation Recipients

Marilyn J Hammer  1 , Gail D'Eramo Melkus  2 , M Tish Knobf  3 , Corey Casper  4 , Jason Fletcher  2 , Charles M Cleland  2
Affiliations

Glycemic Status and Infection Risk in Nondiabetic Autologous Hematopoietic Cell Transplantation Recipients

Marilyn J Hammer et al. Biol Res Nurs. 2016 May.

Abstract

Background: Patients undergoing hematopoietic cell transplantation (HCT) for hematological malignancies experience a number of challenges during treatment. There is growing evidence that malglycemia (hyperglycemia, hypoglycemia, and/or increased glycemic variability) contributes to HCT-related complications, even in patients without preexisting diabetes. The purpose of this pilot study was to investigate factors influencing glycemic status and associated infection occurrences in nondiabetic autologous HCT recipients.

Methods: Oncology patients without preexisting diabetes treated with autologous HCT at a National Cancer Institute-designated cancer center were followed from admission through discharge or 28 days post-HCT. Patients had morning fasting laboratory tests. Descriptive statistics and Cox proportional hazards models were used to examine associations between BG levels and risk for infection while adjusting for baseline covariates including age, body mass index (BMI), cumulative glucocorticoid dose, and diagnosis.

Results: The sample included 28 female and 25 male predominately non-Hispanic White patients (mean age 55.7 years, SD = 11.32). Blood glucose (BG) range was 35-325 mg/dl. Twenty-three patients incurred at least one infection. BMI ≥ 25 kg/m(2) was associated with high BG and infections. In the multivariate Cox model, an increase of 1 interquartile range in BG 2 days before infection was associated with a moderately increased risk of infection (hazard ratio = 1.44, p = .008).

Conclusions: Understanding the contributors to and consequences of malglycemic events can lead to better protocols for identifying patients at greater risk for infection. Further investigation is warranted for interventions to mitigate BG events for improved outcomes.

Keywords: autologous hematopoietic cell transplantation; glycemic status; infections.

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Conflict of interest statement

Declaration of Conflicting Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Figures

Figure 1.
Figure 1.
Box plot of body mass index (BMI) by infection status. Patients with higher BMI had more infections compared to patients with lower BMI. Differences were statistically significant (p < .01).
Figure 2.
Figure 2.
Schematic of associations among a body mass index ≥25 kg/m2, hyperglycemia, and infections in patients with cancer being treated with autologous hematopoietic cell transplantation.
See this image and copyright information in PMC

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