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Multinational, observational study of procalcitonin in ICU patients with pneumonia requiring mechanical ventilation: a multicenter observational study
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 patient...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3219347/ https://www.ncbi.nlm.nih.gov/pubmed/21385367 http://dx.doi.org/10.1186/cc10087 |
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author | Bloos, Frank Marshall, John C Dellinger, Richard P Vincent, Jean-Louis Gutierrez, Guillermo Rivers, Emanuel Balk, Robert A Laterre, Pierre-Francois Angus, Derek C Reinhart, Konrad Brunkhorst, Frank M |
author_facet | Bloos, Frank Marshall, John C Dellinger, Richard P Vincent, Jean-Louis Gutierrez, Guillermo Rivers, Emanuel Balk, Robert A Laterre, Pierre-Francois Angus, Derek C Reinhart, Konrad Brunkhorst, Frank M |
author_sort | Bloos, Frank |
collection | PubMed |
description | 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 r(2 )= 0.50 (95% CI: 0.38 to 0.61) and r(2 )= 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. |
format | Online Article Text |
id | pubmed-3219347 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-32193472011-11-18 Multinational, observational study of procalcitonin in ICU patients with pneumonia requiring mechanical ventilation: a multicenter observational study Bloos, Frank Marshall, John C Dellinger, Richard P Vincent, Jean-Louis Gutierrez, Guillermo Rivers, Emanuel Balk, Robert A Laterre, Pierre-Francois Angus, Derek C Reinhart, Konrad Brunkhorst, Frank M Crit Care Research 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 r(2 )= 0.50 (95% CI: 0.38 to 0.61) and r(2 )= 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. BioMed Central 2011 2011-03-07 /pmc/articles/PMC3219347/ /pubmed/21385367 http://dx.doi.org/10.1186/cc10087 Text en Copyright ©2011 Bloos et al.; licensee BioMed Central Ltd http://creativecommons.org/licenses/by/2.0 This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited |
spellingShingle | Research Bloos, Frank Marshall, John C Dellinger, Richard P Vincent, Jean-Louis Gutierrez, Guillermo Rivers, Emanuel Balk, Robert A Laterre, Pierre-Francois Angus, Derek C Reinhart, Konrad Brunkhorst, Frank M Multinational, observational study of procalcitonin in ICU patients with pneumonia requiring mechanical ventilation: a multicenter observational study |
title | Multinational, observational study of procalcitonin in ICU patients with pneumonia requiring mechanical ventilation: a multicenter observational study |
title_full | Multinational, observational study of procalcitonin in ICU patients with pneumonia requiring mechanical ventilation: a multicenter observational study |
title_fullStr | Multinational, observational study of procalcitonin in ICU patients with pneumonia requiring mechanical ventilation: a multicenter observational study |
title_full_unstemmed | Multinational, observational study of procalcitonin in ICU patients with pneumonia requiring mechanical ventilation: a multicenter observational study |
title_short | Multinational, observational study of procalcitonin in ICU patients with pneumonia requiring mechanical ventilation: a multicenter observational study |
title_sort | multinational, observational study of procalcitonin in icu patients with pneumonia requiring mechanical ventilation: a multicenter observational study |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3219347/ https://www.ncbi.nlm.nih.gov/pubmed/21385367 http://dx.doi.org/10.1186/cc10087 |
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