Evidence map›Paper›PMID 17888153›Full record

ArticleBMC infectious diseases2007

In vitro evaluation of antibiotics' combinations for empirical therapy of suspected methicillin resistant Staphylococcus aureus severe respiratory infections.

Lorenzo Drago, Elena De Vecchi, Lucia Nicola, Maria Rita Gismondo

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
0.8field-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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 86 citations in OpenAlex.

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  10. Ceftobripole: Experience in staphylococcal bacteremia.Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2019
    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

4 authors at 1 institution in 1 country.

Lorenzo DragoLaboratory of Clinical Microbiology, Department of Preclinical Sciences LITA Vialba, University of Milan, Via GB Grassi 74, 20157 Milan, Italy. lorenzo.drago@unimi.it
Elena De Vecchi
Lucia Nicola
Maria Rita Gismondo
University of Milan · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMethicillin resistant Staphylococcus aureus (MRSA) is an increasingly common cause of nosocomial infections, causing severe morbidity and mortality worldwide, and accounting in some hospitals for more than 50% of all S. aureus diseases. Treatment of infections caused by resistant bacterial pathogens mainly relies on two therapeutic modalities: development of new antimicrobials and use of combinations of available antibiotics. Combinations of antibiotics used in the empiric treatment of infections with suspected methicillin resistant Staphylococcus aureus etiology were investigated.

methodsDouble (vancomycin or teicoplanin with either levofloxacin or cefotaxime) and triple (vancomycin or teicoplanin + levofloxacin + one among amikacin, ceftazidime, cefepime, imipenem, piperacillin/tazobactam) combinations were evaluated by means of checkerboard assay and time kill curves. Mutational rates of single and combined drugs at antimicrobial concentrations equal to the resistance breakpoints were also calculated.

resultsVancomycin or teicoplanin + levofloxacin showed synergy in 16/50 and in 9/50 strains respectively, while vancomycin or teicoplanin + cefotaxime resulted synergic for 43/50 and 23/50 strains, respectively. Triple combinations, involving teicoplanin, levofloxacin and ceftazidime or piperacillin/tazobactam gave synergy in 20/25 strains. Teicoplanin + levofloxacin gave synergy in triple combinations more frequently than vancomycin + levofloxacin. For single antibiotics, mutational frequencies ranged between 10(-5) and <10(-9) for levofloxacin, cefotaxime, amikacin and imipenem, and <10(-9) for vancomycin and teicoplanin. When tested in combinations, mutational frequencies fell below 10(-9) for all the combinations.

conclusionIn vitro evidence of synergy between glycopeptides, fluoroquinolones (levofloxacin) and beta-lactams and of reduction of mutational frequencies by combinations are suggestive for a potential role in empirical therapy of severe pneumonia with suspected MRSA etiology.

Indexed as

Methicillin ResistanceAmikacinAnti-Bacterial Agentsbeta-LactamsDrug Therapy, CombinationHumansLevofloxacinMicrobial Sensitivity TestsMutationOfloxacinPneumoniaRespiratory Tract InfectionsStaphylococcal InfectionsStaphylococcus aureusTeicoplaninVancomycinAmikacinAnti-Bacterial Agentsbeta-LactamsLevofloxacinOfloxacinTeicoplaninVancomycin

Identifiers

PMID17888153
PMCPMC2025599
OpenAlexW2153136603

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.