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Published in: BMC Emergency Medicine 1/2021

01-12-2021 | Septicemia | Research article

Monocyte distribution width (MDW) as a new tool for the prediction of sepsis in critically ill patients: a preliminary investigation in an intensive care unit

Authors: Ennio Polilli, Antonella Frattari, Jessica Elisabetta Esposito, Andrea Stanziale, Giuliana Giurdanella, Giancarlo Di Iorio, Fabrizio Carinci, Giustino Parruti

Published in: BMC Emergency Medicine | Issue 1/2021

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Abstract

Background

Monocyte Distribution Width (MDW), a simple proxy marker of innate monocyte activation, can be used for the early recognition of sepsis along with Procalcitonin. This study explored the added value of MDW as an early predictor of ensuing sepsis in patients hospitalised in an Intensive Care Unit.

Methods

We performed an observational prospective monocentric study to estimate the analytical performance of MDW in detecting ensuing sepsis in a sample of consecutive patients assisted in an Intensive Care Unit for > 48 h for any reason. Demographic and clinical characteristics, past medical history and other laboratory measurements were included as potential predictors of confirmed sepsis in multivariate logistic regression.

Results

A total of 211 patients were observed, 129 of whom were included in the final sample due to the suspect of ensuing sepsis; of these, 74 (57%) had a confirmed diagnosis of sepsis, which was best predicted with the combination of MDW > 23.0 and PCT > 0.5 ng/mL (Positive Predictive Value, PPV: 92.6, 95% CI: 82.1–97.9). The best MDW cut-off to rule out sepsis was ≤20.0 (Negative Predictive Value, NPV: 86.4, 95% CI: 65.1–97.1). Multivariate analyses using both MDW and PCT found a significant association for MDW > 23 only (OR:17.64, 95% CI: 5.53–67.91).

Conclusion

We found that values of MDW > 23 were associated with a high PPV for sepsis, whereas values of MDW ≤ 20 were associated with a high NPV. Our findings suggest that MDW may help clinicians to monitor ICU patients at risk of sepsis, with minimal additional efforts over standard of care.
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Metadata
Title
Monocyte distribution width (MDW) as a new tool for the prediction of sepsis in critically ill patients: a preliminary investigation in an intensive care unit
Authors
Ennio Polilli
Antonella Frattari
Jessica Elisabetta Esposito
Andrea Stanziale
Giuliana Giurdanella
Giancarlo Di Iorio
Fabrizio Carinci
Giustino Parruti
Publication date
01-12-2021
Publisher
BioMed Central
Published in
BMC Emergency Medicine / Issue 1/2021
Electronic ISSN: 1471-227X
DOI
https://doi.org/10.1186/s12873-021-00521-4

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