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  1. Article ; Online: Inquilinus limosus, an atypical Gram-negative rod from lung transplant recipients and cystic fibrosis patients.

    Farfour, Eric / Corvec, Stéphane / Guillard, Thomas / Revillet, Hélène

    Annales de biologie clinique

    2024  Volume 82, Issue 2, Page(s) 1–2

    Language English
    Publishing date 2024-04-01
    Publishing country France
    Document type Journal Article
    ZDB-ID 418098-7
    ISSN 1950-6112 ; 0003-3898
    ISSN (online) 1950-6112
    ISSN 0003-3898
    DOI 10.1684/abc.2024.1876
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Clinical and Biological Features of Cutibacterium (Formerly Propionibacterium)

    Corvec, Stéphane

    Clinical microbiology reviews

    2018  Volume 31, Issue 3

    Abstract: The recent description of the ... ...

    Abstract The recent description of the genus
    MeSH term(s) Actinomycetales Infections/diagnosis ; Actinomycetales Infections/drug therapy ; Actinomycetales Infections/microbiology ; Actinomycetales Infections/pathology ; Anti-Bacterial Agents/therapeutic use ; Humans ; Phylogeny ; Propionibacterium/classification ; Propionibacterium/physiology
    Chemical Substances Anti-Bacterial Agents
    Language English
    Publishing date 2018-05-30
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 645015-5
    ISSN 1098-6618 ; 0893-8512
    ISSN (online) 1098-6618
    ISSN 0893-8512
    DOI 10.1128/CMR.00064-17
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  3. Article ; Online: Staphylococcus succinus Infective Endocarditis, France.

    Ruffier d'Epenoux, Louise / Fayoux, Erwan / Laurent, Frédéric / Bémer, Pascale / Lecomte, Raphaël / Le Tourneau, Thierry / Guillouzouic, Aurélie / Corvec, Stéphane

    Emerging infectious diseases

    2024  Volume 30, Issue 3, Page(s) 601–603

    Abstract: Infective endocarditis is a rare condition in humans and is associated with high illness and death rates. We describe a case of infective endocarditis caused by Staphylococcus succinus bacteria in France. We used several techniques for susceptibility ... ...

    Abstract Infective endocarditis is a rare condition in humans and is associated with high illness and death rates. We describe a case of infective endocarditis caused by Staphylococcus succinus bacteria in France. We used several techniques for susceptibility testing for this case to determine the oxacillin profile.
    MeSH term(s) Humans ; Endocarditis, Bacterial/diagnosis ; Endocarditis, Bacterial/drug therapy ; Endocarditis ; Staphylococcus ; France/epidemiology
    Language English
    Publishing date 2024-02-15
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 1380686-5
    ISSN 1080-6059 ; 1080-6040
    ISSN (online) 1080-6059
    ISSN 1080-6040
    DOI 10.3201/eid3003.230986
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Synovial calprotectin: A potentially useful biomarker for the diagnosis of

    Leroy, Anne-Gallë / Bémer, Pascale / Decante, Cyrille / Ruffier d'Epenoux, Louise / Tessier, Eve / Crenn, Vincent / Guillouzouic, Aurélie / Corvec, Stéphane

    Clinical case reports

    2023  Volume 11, Issue 3, Page(s) e7106

    Abstract: ... Kingella ... ...

    Abstract Kingella kingae
    Language English
    Publishing date 2023-03-24
    Publishing country England
    Document type Case Reports
    ZDB-ID 2740234-4
    ISSN 2050-0904
    ISSN 2050-0904
    DOI 10.1002/ccr3.7106
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  5. Article ; Online: Retrospective analysis of a large single cohort of Enterobacteriaceae producing extended-spectrum B-lactamase (E-ESBL) patients: incidence, microbiology, and mortality.

    Bouchand, Camille / Andréo, Anaïs / Le Gallou, Florence / Corvec, Stéphane / Bourigault, Céline / Lepelletier, Didier

    European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology

    2022  Volume 41, Issue 10, Page(s) 1237–1243

    Abstract: We conducted a retrospective study from 2005 to 2019 to describe the epidemiology and mortality of enterobacterial producing extended-spectrum β-lactamase (E-ESBL) infections in our university hospital over a 17-year period of time. Clinical and ... ...

    Abstract We conducted a retrospective study from 2005 to 2019 to describe the epidemiology and mortality of enterobacterial producing extended-spectrum β-lactamase (E-ESBL) infections in our university hospital over a 17-year period of time. Clinical and microbiological data were extracted from different software used for continuous surveillance. Stool samples from systematic screening for E-ESBL colonization were excluded from the study. The incidence rate of infected patient was calculated by E-ESBL species and by year. A comparison of mortality rate in patients with bloodstream infections versus other types of infections was conducted using a Kaplan-Meier method survival curves. A log rank test (with a risk of 5%) was carried out. A total of 3324 patients with E-ESBL infection were included with an increased incidence density per 1000 days of hospitalization from 0.03 in 2005 to 0.47 in 2019. Escherichia coli was the most frequently isolated pathogen (64%). Global mortality rate was significantly higher with E. coli than with Klebsiella spp. and Enterobacter spp. (p < 0.001). Mortality was higher in patients with E-ESBL bloodstream infection than in patients with other type of E-ESBL infection (p < 0.001). Our study showed a significant increase of the E-ESBL incidence density over a 17-year period survey with a higher mortality in patients with E-ESBL bacteremia. This highlights the need to continue efforts to control the spread of these multi-resistant bacteria in our institution.
    MeSH term(s) Anti-Bacterial Agents/therapeutic use ; Bacteremia/microbiology ; Enterobacteriaceae Infections/drug therapy ; Enterobacteriaceae Infections/epidemiology ; Escherichia coli ; Escherichia coli Infections/epidemiology ; Escherichia coli Infections/microbiology ; Humans ; Incidence ; Klebsiella ; Retrospective Studies ; Risk Factors ; beta-Lactamases
    Chemical Substances Anti-Bacterial Agents ; beta-Lactamases (EC 3.5.2.6)
    Language English
    Publishing date 2022-09-02
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 603155-9
    ISSN 1435-4373 ; 0934-9723 ; 0722-2211
    ISSN (online) 1435-4373
    ISSN 0934-9723 ; 0722-2211
    DOI 10.1007/s10096-022-04489-2
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  6. Article ; Online: Functional outcomes and complications of patients contaminated with Cutibacterium acnes during primary reverse shoulder arthroplasty: study at two- and five-years of follow-up.

    Torrens, Carlos / Marí, Raquel / Puig-Verdier, Lluís / Santana, Fernando / Alier, Albert / García-Jarabo, Eva / Gómez-Sánchez, Alba / Corvec, Stèphane

    International orthopaedics

    2023  Volume 47, Issue 11, Page(s) 2827–2833

    Abstract: Purpose: The objective of the study was to compare the functional outcomes and the complication rate of the patients with C. acnes contamination at the end of the primary reverse shoulder arthroplasty (RSA) surgery to those patients without C. acnes ... ...

    Abstract Purpose: The objective of the study was to compare the functional outcomes and the complication rate of the patients with C. acnes contamination at the end of the primary reverse shoulder arthroplasty (RSA) surgery to those patients without C. acnes contamination.
    Method: A total of 162 patients were included. In all cases, skin and deep tissue cultures were obtained. A molecular typing characterization of the C. acnes strains was performed. Functional outcomes were assessed with the Constant score at the two and five year follow-up and all complications were also recorded.
    Results: A total of 1380 cultures were obtained from the 162 primary RSA surgeries. Of those, 96 turned out to be positive for C. acnes. There were 25 patients with positive cultures for C. acnes. The overall postoperative Constant score was not significantly different between those patients having C. acnes-positive cultures and those with negative cultures at the two and five year follow-up (59.2 vs. 59.6 at two years, p 0.870, and 59.5 vs. 62.4 at five years, p 0.360). Patients with positive cultures presented a higher complication rate (p 0.001) with two infections, one revision surgery, and one dislocation.
    Conclusion: Patients ending up with C. acnes-positive cultures after primary shoulder arthroplasty surgery do not have worse clinical outcomes when compared to patients having negative cultures, but a greater number of complications were found in those patients with C. acnes-positive cultures.
    MeSH term(s) Humans ; Arthroplasty, Replacement, Shoulder/adverse effects ; Shoulder Joint/surgery ; Shoulder Joint/microbiology ; Follow-Up Studies ; Skin/microbiology ; Propionibacterium acnes ; Shoulder/surgery
    Language English
    Publishing date 2023-09-15
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 80384-4
    ISSN 1432-5195 ; 0341-2695
    ISSN (online) 1432-5195
    ISSN 0341-2695
    DOI 10.1007/s00264-023-05971-y
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  7. Article ; Online: Acne microbiome: From phyla to phylotypes.

    Dreno, Brigitte / Dekio, Itaru / Baldwin, Hilary / Demessant, Anne Laure / Dagnelie, Marie-Ange / Khammari, Amir / Corvec, Stephane

    Journal of the European Academy of Dermatology and Venereology : JEADV

    2023  Volume 38, Issue 4, Page(s) 657–664

    Abstract: Acne vulgaris is a chronic inflammatory skin disease with a complex pathogenesis. Traditionally, the primary pathophysiologic factors in acne have been thought to be: (1) altered sebum production, (2) inflammation, (3) excess keratinization and (4) ... ...

    Abstract Acne vulgaris is a chronic inflammatory skin disease with a complex pathogenesis. Traditionally, the primary pathophysiologic factors in acne have been thought to be: (1) altered sebum production, (2) inflammation, (3) excess keratinization and (4) colonization with the commensal Cutibacterium acnes. However, the role of C. acnes has been unclear, since virtually all adults have C. acnes on their skin yet not all develop acne. In recent years, understanding of the role of C. acnes has expanded. It is still acknowledged to have an important place in acne pathogenesis, but evidence suggests that an imbalance of individual C. acnes phylotypes and an alteration of the skin microbiome trigger acne. In addition, it is now believed that Staphylococcus epidermidis is also an actor in acne development. Together, C. acnes and S. epidermidis maintain and regulate homeostasis of the skin microbiota. Antibiotics, which have long been a staple of acne therapy, induce cutaneous dysbiosis. This finding, together with the long-standing public health edict to spare antibiotic use when possible, highlights the need for a change in acne management strategies. One fertile direction of study for new approaches involves dermocosmetic products that can support epidermal barrier function and have a positive effect on the skin microbiome.
    MeSH term(s) Humans ; Acne Vulgaris/therapy ; Skin/microbiology ; Microbiota ; Dermatitis ; Dysbiosis ; Anti-Bacterial Agents ; Propionibacterium acnes/physiology
    Chemical Substances Anti-Bacterial Agents
    Language English
    Publishing date 2023-10-11
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1128828-0
    ISSN 1468-3083 ; 0926-9959
    ISSN (online) 1468-3083
    ISSN 0926-9959
    DOI 10.1111/jdv.19540
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  8. Article ; Online: Clinical evaluation of the BioFire Respiratory Pathogen Panel for the guidance of empirical antimicrobial therapy in critically ill patients with hospital-acquired pneumonia: A multicenter, quality improvement project.

    Poulain, Cécile / Launey, Yoann / Bouras, Marwan / Lakhal, Karim / Dargelos, Laura / Crémet, Lise / Gibaud, Sophie-Anne / Corvec, Stéphane / Seguin, Philippe / Rozec, Bertrand / Asehnoune, Karim / Feuillet, Fanny / Roquilly, Antoine

    Anaesthesia, critical care & pain medicine

    2024  Volume 43, Issue 2, Page(s) 101353

    Abstract: Background: We aimed to determine whether implementing antimicrobial stewardship based on multiplex bacterial PCR examination of respiratory fluid can enhance outcomes of critically ill patients with hospital-acquired pneumonia (HAP).: Methods: We ... ...

    Abstract Background: We aimed to determine whether implementing antimicrobial stewardship based on multiplex bacterial PCR examination of respiratory fluid can enhance outcomes of critically ill patients with hospital-acquired pneumonia (HAP).
    Methods: We conducted a quality improvement study in two hospitals in France. Adult patients requiring invasive mechanical ventilation with a diagnosis of HAP were included. In the pre-intervention period (August 2019 to April 2020), antimicrobial therapy followed European guidelines. In the «intervention» phase (June 2020 to October 2021), treatment followed a multiplex PCR-guided protocol. The primary endpoint was a composite endpoint made of mortality on day 28, clinical cure between days 7 and 10, and duration of invasive mechanical ventilation on day 28. The primary outcome was analyzed with a DOOR strategy.
    Results: A total of 443 patients were included in 3 ICUs from 2 hospitals (220 pre-intervention; 223 intervention). No difference in the ranking of the primary composite outcome was found (DOOR: 50.3%; 95%CI, 49.9%-50.8%). The number of invasive mechanical ventilation-free days at day 28 was 10.0 [0.0; 19.0] in the baseline period and 9.0 [0.0; 20.0] days during the intervention period (p = 0.95). The time-to-efficient antimicrobial treatment was 0.43 ± 1.29 days before versus 0.55 ± 1.13 days after the intervention (p = 0.56).
    Conclusion: Implementation of Rapid Multiplex PCR to guide empirical antimicrobial therapy for critically ill patients with HAP was not associated with better outcomes. However, adherence to stewardship was low, and the study may have had limited power to detect a clinically important difference.
    MeSH term(s) Adult ; Humans ; Critical Illness ; Quality Improvement ; Anti-Infective Agents/therapeutic use ; Healthcare-Associated Pneumonia/drug therapy ; Hospitals ; Anti-Bacterial Agents/therapeutic use
    Chemical Substances Anti-Infective Agents ; Anti-Bacterial Agents
    Language English
    Publishing date 2024-02-12
    Publishing country France
    Document type Multicenter Study ; Journal Article
    ISSN 2352-5568
    ISSN (online) 2352-5568
    DOI 10.1016/j.accpm.2024.101353
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  9. Article ; Online: Comparative effectiveness of empirical antibiotic treatments in methicillin-susceptible Staphylococcus aureus infective endocarditis: A post hoc analysis of a prospective French cohort study.

    Lecomte, Raphaël / Deschanvres, Colin / Bourreau, Alexis / Ruffier d'Epenoux, Louise / Le Turnier, Paul / Gaborit, Benjamin / Chauveau, Marie / Michel, Magali / Le Tourneau, Thierry / Bémer, Pascale / Corvec, Stéphane / Boutoille, David

    International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases

    2024  Volume 142, Page(s) 106989

    Abstract: Objectives: The empirical treatment of infective endocarditis is still debated. The aim of this study was to compare the impact of empirical treatment with antistaphylococcal penicillin (ASP) or cefazolin vs. other treatments in methicillin-susceptible ... ...

    Abstract Objectives: The empirical treatment of infective endocarditis is still debated. The aim of this study was to compare the impact of empirical treatment with antistaphylococcal penicillin (ASP) or cefazolin vs. other treatments in methicillin-susceptible Staphylococcus aureus (MSSA) endocarditis.
    Methods: A post hoc analysis of a prospective cohort study of patients hospitalized in a French reference centre with MSSA endocarditis was conducted between 2013 and 2022. The primary outcome was the duration of bacteraemia under treatment.
    Results: Of the 208 patients included, 101 patients (48.6%) were classified in the reference group (ASP or cefazolin) and 107 (52.4%) in the non-reference group. Empirical treatment with ASP/cefazolin was associated with a shorter duration of bacteraemia compared to other treatments (3.6 d vs. 4.6 d, P = 0.01). This difference was not corrected by the addition of an aminoglycoside (3.6 d vs. 4.7 d, P < 0.01). In multivariate analysis, empirical treatment with ASP/cefazolin was associated with a duration of bacteraemia ≤72 h (P = 0.02), whereas endocarditis on native valves (P = 0.01), and intracardiac abscess were associated with longer duration of bacteraemia (P = 0.01).
    Conclusions: Empirical treatment of endocarditis with ASP or Cefazolin is more effective than other treatments in MSSA endocarditis, even when the other treatments are combined with aminoglycosides.
    MeSH term(s) Humans ; Cefazolin/therapeutic use ; Methicillin/pharmacology ; Methicillin/therapeutic use ; Prospective Studies ; Staphylococcus aureus ; Cohort Studies ; Staphylococcal Infections/drug therapy ; Anti-Bacterial Agents/therapeutic use ; Endocarditis, Bacterial/drug therapy ; Endocarditis/drug therapy ; Bacteremia/drug therapy
    Chemical Substances Cefazolin (IHS69L0Y4T) ; Methicillin (Q91FH1328A) ; Anti-Bacterial Agents
    Language English
    Publishing date 2024-02-28
    Publishing country Canada
    Document type Journal Article
    ZDB-ID 1331197-9
    ISSN 1878-3511 ; 1201-9712
    ISSN (online) 1878-3511
    ISSN 1201-9712
    DOI 10.1016/j.ijid.2024.106989
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  10. Article: Immediate vs. culture-initiated antibiotic therapy in suspected non-severe ventilator-associated pneumonia: a before-after study (DELAVAP).

    Martin, Maëlle / Forveille, Solène / Lascarrou, Jean-Baptiste / Seguin, Amélie / Canet, Emmanuel / Lemarié, Jérémie / Agbakou, Maïté / Desmedt, Luc / Blonz, Gauthier / Zambon, Olivier / Corvec, Stéphane / Le Thuaut, Aurélie / Reignier, Jean

    Annals of intensive care

    2024  Volume 14, Issue 1, Page(s) 33

    Abstract: Background: Ventilator-associated pneumonia (VAP) is the leading nosocomial infection in critical care and is associated with adverse outcomes. When VAP is suspected, starting antibiotic therapy (AT) immediately after pulmonary sampling may expose ... ...

    Abstract Background: Ventilator-associated pneumonia (VAP) is the leading nosocomial infection in critical care and is associated with adverse outcomes. When VAP is suspected, starting antibiotic therapy (AT) immediately after pulmonary sampling may expose uninfected patients to unnecessary treatment, whereas waiting for bacteriological confirmation may delay AT in infected patients. As no robust data exist to choose between these strategies, the decision must balance the pre-test diagnostic probability, clinical severity, and risk of antimicrobial resistance. The objective of this study in patients with suspected non-severe VAP was to compare immediate AT started after sampling to conservative AT upon receipt of positive microbiological results. The outcomes were antibiotic sparing, AT suitability, and patient outcomes.
    Methods: This single-center, before-after study included consecutive patients who underwent distal respiratory sampling for a first suspected non-severe VAP episode (no shock requiring vasopressor therapy or severe acute respiratory distress syndrome). AT was started immediately after sampling in 2019 and upon culture positivity in 2022 (conservative strategy). The primary outcome was the number of days alive without AT by day 28. The secondary outcomes were mechanical ventilation duration, day-28 mortality, and AT suitability (active necessary AT or spared AT).
    Results: The immediate and conservative strategies were applied in 44 and 43 patients, respectively. Conservative and immediate AT were associated with similar days alive without AT (median [interquartile range], 18.0 [0-21.0] vs. 16.0 [0-20.0], p = 0.50) and without broad-spectrum AT (p = 0.53) by day 28. AT was more often suitable in the conservative group (88.4% vs. 63.6%, p = 0.01), in which 27.9% of patients received no AT at all. No significant differences were found for mechanical ventilation duration (median [95%CI], 9.0 [6-19] vs. 9.0 [6-24] days, p = 0.65) or day-28 mortality (hazard ratio [95%CI], 0.85 [0.4-2.0], p = 0.71).
    Conclusion: In patients with suspected non-severe VAP, waiting for microbiological confirmation was not associated with antibiotic sparing, compared to immediate AT. This result may be ascribable to low statistical power. AT suitability was better with the conservative strategy. None of the safety outcomes differed between groups. These findings would seem to allow a large, randomized trial comparing immediate and conservative AT strategies.
    Language English
    Publishing date 2024-02-27
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2617094-2
    ISSN 2110-5820
    ISSN 2110-5820
    DOI 10.1186/s13613-024-01243-z
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