Evidence map›Paper›PMID 18947382›Full record

ArticleBMC infectious diseases2008

Procalcitonin levels in acute exacerbation of COPD admitted in ICU: a prospective cohort study.

Cédric Daubin, Jean-Jacques Parienti, Astrid Vabret, Michel Ramakers, Sabine Fradin, Nicolas Terzi, François Freymuth, Pierre Charbonneau, Damien du Cheyron

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 3 pooled it
3.4field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 3 syntheses or guidelines pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Article
  6. Review
  7. Article
  8. Review
  9. Serum inflammatory biomarkers and clinical outcomes of COPD exacerbation caused by different pathogens.International journal of chronic obstructive pulmonary disease · 2017
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Procalcitonin: Is it a predictor of noninvasive positive pressure ventilation necessity in acute chronic obstructive pulmonary disease exacerbation?Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2012
    Article
  15. [Antimicrobial treatment of patients with severe acute exacerbation of COPD].Medizinische Klinik, Intensivmedizin und Notfallmedizin · 2012
    Article
  16. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Cédric DaubinDepartment of Medical Intensive Care, Caen University Hospital, 14033 Caen Cedex, France. daubin-c@chu-caen.fr
Jean-Jacques Parienti
Astrid Vabret
Michel Ramakers
Sabine Fradin
Nicolas Terzi
François Freymuth
Pierre Charbonneau
Damien du Cheyron
Université de Caen Normandie · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAntibiotics are recommended for severe acute exacerbation of chronic obstructive pulmonary disease (AECOPD) admitted to intensive care units (ICU). Serum procalcitonin (PCT) could be a useful tool for selecting patients with a lower probability of developing bacterial infection, but its measurement has not been investigated in this population.

methodsWe conducted a single center prospective cohort study in consecutive COPD patients admitted to the ICU for AECOPD between September 2005 and September 2006. Sputum samples or tracheal aspirates were tested for the presence of bacteria and viruses. PCT levels were measured at the time of admittance, six hours, and 24 hours using a sensitive immunoassay.

resultsThirty nine AECOPD patients were included, 31 of which (79%) required a ventilator support at admission. The median [25%-75% interquartile range] PCT level, assessed in 35/39 patients, was: 0.096 microg/L [IQR, 0.065 to 0.178] at the time of admission, 0.113 microg/L [IQR, 0.074 to 0.548] at six hours, and 0.137 microg/L [IQR, 0.088 to 0.252] at 24 hours. The highest PCT (PCTmax) levels were less than 0.1 microg/L in 14/35 (40%) patients and more than 0.25 microg/L in 10/35 (29%) patients, suggesting low and high probability of bacterial infection, respectively. Five species of bacteria and nine species of viruses were detected in 12/39 (31%) patients. Among the four patients positive for Pseudomonas aeruginosa, one had a PCTmax less than 0.25 microg/L and three had a PCTmax less than 0.1 microg/L. The one patient positive for Haemophilus influenzae had a PCTmax more than 0.25 microg/L. The presence or absence of viruses did not influence PCT at time of admission (0.068 vs 0.098 microg/L respectively, P = 0.80).

conclusionThe likelihood of bacterial infection is low among COPD patients admitted to ICU for AECOPD (40% with PCT < 0.1 microg/L) suggesting a possible inappropriate use of antibiotics. Further studies are necessary to assess the impact of a procalcitonin-based therapeutic strategy in critically ill COPD patients.

Indexed as

Intensive Care UnitsAdultAgedAged, 80 and overAnti-Bacterial AgentsBacterial InfectionsCalcitoninCalcitonin Gene-Related PeptideFemaleHumansMaleMiddle AgedPredictive Value of TestsProspective StudiesProtein PrecursorsPulmonary Disease, Chronic ObstructiveAnti-Bacterial AgentsCALCA protein, humanCalcitoninCalcitonin Gene-Related PeptideProtein Precursors

Identifiers

PMID18947382
PMCPMC2577677
OpenAlexW2085806419

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.