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Multinational, observational study of procalcitonin in ICU patients with pneumonia requiring mechanical ventilation: A multicenter observational study

Bloos, F and Marshall, JC and Dellinger, RP and Vincent, JL and Gutierrez, G and Rivers, E and Balk, RA and Laterre, PF and Angus, DC and Reinhart, K and Brunkhorst, FM (2011) Multinational, observational study of procalcitonin in ICU patients with pneumonia requiring mechanical ventilation: A multicenter observational study. Critical Care, 15 (2). ISSN 1364-8535

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Abstract

Introduction: The intent of this study was to determine whether serum procalcitonin (PCT) levels are associated with prognosis, measured as organ dysfunctions and 28-day mortality, in patients with severe pneumonia.Methods: This was a multicenter, observational study of critically ill adult patients with pneumonia requiring mechanical ventilation conducted in 10 academic hospitals in Canada, the United States, and Central Europe. PCT was measured daily for 14 days using an immuno-luminometric assay.Results: We included 175 patients, 57 with community acquired pneumonia (CAP), 61 with ventilator associated pneumonia (VAP) and 57 with hospital acquired pneumonia (HAP). Initial PCT levels were higher in CAP than VAP patients (median (interquartile range: IQR); 2.4 (0.95 to 15.8) vs. 0.7 (0.3 to 2.15), ng/ml, P < 0.001) but not significantly different to HAP (2.2 (0.4 to 8.0) ng/ml). The 28-day ICU mortality rate for all patients was 18.3% with a median ICU length of stay of 16 days (range 1 to 142 days). PCT levels were higher in non-survivors than in survivors. Initial and maximum PCT levels correlated with maximum Sequential Organ Failure Assessment (SOFA) score r2= 0.50 (95% CI: 0.38 to 0.61) and r2= 0.57 (0.46 to 0.66), respectively. Receiver operating curve (ROC) analysis on discrimination of 28-day mortality showed areas under the curve (AUC) of 0.74, 0.70, and 0.69 for maximum PCT, initial PCT, and Acute Physiology and Chronic Health Evaluation (APACHE) II score, respectively. The optimal cut-off to predict mortality for initial PCT was 1.1 ng/ml (odds ratio: OD 7.0 (95% CI 2.6 to 25.2)) and that for maximum PCT was 7.8 ng/ml (odds ratio 5.7 (95% CI 2.5 to 13.1)).Conclusions: PCT is associated with the severity of illness in patients with severe pneumonia and appears to be a prognostic marker of morbidity and mortality comparable to the APACHE II score. © 2011 Bloos et al.; licensee BioMed Central Ltd.

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Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Bloos, F
Marshall, JC
Dellinger, RP
Vincent, JL
Gutierrez, G
Rivers, E
Balk, RA
Laterre, PF
Angus, DCangusdc@pitt.eduANGUSDC0000-0002-7026-5181
Reinhart, K
Brunkhorst, FM
Date: 7 March 2011
Date Type: Publication
Journal or Publication Title: Critical Care
Volume: 15
Number: 2
DOI or Unique Handle: 10.1186/cc10087
Schools and Programs: School of Medicine > Critical Care Medicine
Refereed: Yes
ISSN: 1364-8535
Date Deposited: 18 Nov 2016 20:36
Last Modified: 22 Jun 2021 14:56
URI: http://d-scholarship.pitt.edu/id/eprint/30161

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