Evidence map›Paper›PMID 19652947›Full record

ArticleIntensive care medicine2009

Nebulized ceftazidime in experimental pneumonia caused by partially resistant Pseudomonas aeruginosa.

Fabio Ferrari, Qin Lu, Cassio Girardi, Olivier Petitjean, Charles-Hugo Marquette, Frederic Wallet, Jean-Jacques Rouby, Experimental ICU Study Group

Abstract read
PubMed Publisher
In one paragraph

Article in Intensive care medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 4 pooled it
1.0field-weighted citation impact, top 28% 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

22 citing papers in PubMed, 4 syntheses or guidelines pooled it, 54 citations in OpenAlex.

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  8. Candent issues in pneumonia. Reflections from the Fifth Annual Meeting of Spanish Experts 2023.Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2024
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  19. Fundamentals of aerosol therapy in critical care.Critical care (London, England) · 2016
    Review
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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

8 authors at 6 institutions in 2 countries.

Fabio FerrariRéanimation Polyvalente Pierre Viars, Département d'Anesthésie-Réanimation, UPMC Univ Paris 06, Hôpital Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, 47-83 boulevard de l'Hôpital, 75013, Paris, France.
Qin Lu
Cassio Girardi
Olivier Petitjean
Charles-Hugo Marquette
Frederic Wallet
Jean-Jacques Rouby
Experimental ICU Study Group
Sorbonne Université · FRHôpital Avicenne · FRInserm · FRPitié-Salpêtrière Hospital · FRUniversidade Federal de São Paulo · BRUniversité de Lille · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeVentilator-associated pneumonia caused by Pseudomonas aeruginosa with impaired sensitivity to ceftazidime is frequent in critically ill patients. The aim of the study was to compare lung tissue deposition and antibacterial efficiency between nebulized and intravenous administrations of ceftazidime in ventilated piglets with pneumonia caused by Pseudomonas aeruginosa with impaired sensitivity to ceftazidime.

methodsCeftazidime was administered 24 h following the intra-bronchial inoculation of Pseudomonas aeruginosa (minimum inhibitory concentration = 16 microg ml(-1)), either by nebulization (25 mg kg(-1) every 3 h, n = 6) or by continuous intravenous infusion (90 mg kg(-1) over 24 h after an initial rapid infusion of 30 mg kg(-1), n = 6). Four non-treated inoculated animals served as controls. All piglets were killed 48 h (intravenous and control groups) or 51 h (aerosol group) after inoculation. Lung tissue concentrations and lung bacterial burden were assessed on multiple post-mortem sub-pleural lung specimens [(lower limit of quantitation = 10(2) colony forming unit (cfu g(-1))].

resultsCeftazidime trough lung tissue concentrations following nebulization were greater than steady-state lung tissue concentrations following continuous intravenous infusion [median and interquartile range, 24.8 (12.6-59.6) microg g(-1) vs. 6.1 (4.6-10.8) microg g(-1)] (p < 0.001). After 24 h of ceftazidime administration, 83% of pulmonary segments had bacterial counts <10(2) cfu g(-1) following nebulization and only 30% following intravenous administration (p < 0.001). In control animals, 10% of lung segments had bacterial counts <10(2) cfu g(-1) 48 h following bronchial inoculation.

conclusionNebulized ceftazidime provides more efficient bacterial killing in ventilated piglets with pneumonia caused by Pseudomonas aeruginosa with impaired sensitivity to ceftazidime.

Indexed as

AnimalsAnti-Bacterial AgentsCeftazidimeDrug Resistance, BacterialInfusions, IntravenousLungNebulizers and VaporizersPneumonia, BacterialPseudomonas aeruginosaPseudomonas InfectionsSwineTissue DistributionAnti-Bacterial AgentsCeftazidime

Identifiers

PMID19652947
OpenAlexW1966447450

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.