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© A. Alanio, E. Perret
Prolifération de Cryptococcus neoformans dans des macrophages murins.
Publication : Respirology (Carlton, Vic.)

Procalcitonin as a prognostic factor in severe acute exacerbation of chronic obstructive pulmonary disease

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Respirology (Carlton, Vic.) - 30 Jul 2009

Rammaert B, Verdier N, Cavestri B, Nseir S

Link to Pubmed [PMID] – 19659517

Respirology 2009 Sep;14(7):969-74

BACKGROUND AND OBJECTIVE: Little is known about the value of procalcitonin in predicting mortality in patients with an exacerbation of COPD. This study evaluated the clinical and biological predictors of intensive care unit (ICU) mortality in patients with a severe acute exacerbation of COPD.

METHODS: A prospective observational cohort study was conducted of consecutive patients with severe acute exacerbation of COPD requiring intubation and mechanical ventilation. At ICU admission, data were collected on the patients’ clinical condition, blood leukocyte count, C-reactive protein and procalcitonin. Cox proportional hazards model was used to determine the risk factors for ICU mortality.

RESULTS: One hundred and sixteen patients were included in this study. Mean age was 67 years. The mean simplified acute physiology score was 43. Sixty-five per cent of study patients had chronic respiratory insufficiency. Bacteria were cultured at levels considered significant in 36% of study patients. Logistic organ dysfunction score (hazard ratio (95% CI) = 1.19 (1.03-1.37), P = 0.013), rapidly fatal underlying disease (3.33 (1.40-7.87), P = 0.003) and procalcitonin level (1.01 (1-1.03), P = 0.018) were independently associated with increased risk for ICU mortality. Non-invasive mechanical ventilation use before intubation was independently associated with reduced risk for ICU mortality (0.34 (0.14-0.84), P = 0.020).

CONCLUSIONS: In patients with severe acute exacerbation of COPD requiring intubation and mechanical ventilation, logistic organ dysfunction score, rapidly fatal underlying disease and procalcitonin are independently associated with increased risk for ICU mortality. Non-invasive mechanical ventilation use before intubation was independently associated with reduced risk for ICU mortality.

http://www.ncbi.nlm.nih.gov/pubmed/19659517