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  1. Article ; Online: Surveillance: a prerequisite for effective antimicrobial stewardship.

    Ten Oever, Jaap

    Infectious diseases (London, England)

    2021  Volume 53, Issue 8, Page(s) 619–621

    MeSH term(s) Anti-Bacterial Agents/therapeutic use ; Antimicrobial Stewardship ; Drug Resistance, Microbial ; Drug Utilization ; Hospitals ; Humans
    Chemical Substances Anti-Bacterial Agents
    Language English
    Publishing date 2021-05-10
    Publishing country England
    Document type Editorial ; Comment
    ZDB-ID 2839775-7
    ISSN 2374-4243 ; 2374-4235
    ISSN (online) 2374-4243
    ISSN 2374-4235
    DOI 10.1080/23744235.2021.1910340
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Nitrofurantoïne voor urineweginfecties bij mannen?

    Ten Oever, Jaap

    Nederlands tijdschrift voor geneeskunde

    2020  Volume 164

    Abstract: Most uropathogens are sensitive to nitrofurantoin. Urinary tract infections with systemic symptoms cannot be treated with nitrofurantoin. Unfortunately, the frequency of prostate involvement in (suspected) cystitis without anamnestic and physical ... ...

    Title translation Nitrofurantoin for urinary tract infections in men: it is possible.
    Abstract Most uropathogens are sensitive to nitrofurantoin. Urinary tract infections with systemic symptoms cannot be treated with nitrofurantoin. Unfortunately, the frequency of prostate involvement in (suspected) cystitis without anamnestic and physical features of tissue invasion is unknown. Clinical studies are limited to retrospective observational studies in which approximately one third of men received a second course of antibiotics within 60-90 days. Exact interpretation of the retreatment is difficult, but it is certainly not only explained by a failure of nitrofurantoin. In addition, the number of men who come to the emergency room with urosepsis during treatment with nitrofurantoin is probably outweighed by the large number of nitrofurantoin prescriptions. The oral alternative to nitrofurantoin is ciprofloxacin. However, this is undesirable because of side effects, more microbiome disturbance and resistance development. Therefore, nitrofurantoin is a valuable treatment option for a urinary tract infection in men, provided that systemic symptoms are absent.
    MeSH term(s) Anti-Infective Agents, Urinary/therapeutic use ; Humans ; Male ; Nitrofurantoin/therapeutic use ; Prostatic Diseases/drug therapy ; Prostatic Diseases/microbiology ; Retrospective Studies ; Treatment Outcome ; Urinary Tract Infections/drug therapy ; Urinary Tract Infections/microbiology
    Chemical Substances Anti-Infective Agents, Urinary ; Nitrofurantoin (927AH8112L)
    Language Dutch
    Publishing date 2020-10-08
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 82073-8
    ISSN 1876-8784 ; 0028-2162
    ISSN (online) 1876-8784
    ISSN 0028-2162
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Redefining Staphylococcus aureus bacteremia: A structured approach guiding diagnostic and therapeutic management.

    Kouijzer, Ilse J E / Fowler, Vance G / Ten Oever, Jaap

    The Journal of infection

    2022  Volume 86, Issue 1, Page(s) 9–13

    Abstract: The current duration of therapy in patients with Staphylococcus aureus bacteremia (SAB) is based on differentiating complicated from uncomplicated disease. While this approach allows clinicians and investigators to group SAB patients into broadly similar ...

    Abstract The current duration of therapy in patients with Staphylococcus aureus bacteremia (SAB) is based on differentiating complicated from uncomplicated disease. While this approach allows clinicians and investigators to group SAB patients into broadly similar clinical categories, it fails to account for the intrinsic heterogeneity of SAB. This is due in part to the fact that risk factors for metastatic infection and confirmed metastatic infection are considered as equivalent in most scoring systems. In this viewpoint, we propose a two-step system of categorizing patients with SAB. Initially, patients with SAB would be categorized as 'high risk' or 'low risk' for metastatic infection based upon an initial set of diagnostic procedures. In the second step, patients identified as 'high-risk' would undergo additional diagnostic evaluation. The results of this stepwise diagnostic evaluation would define a 'final clinical diagnosis' to inform an individualized final treatment plan.
    MeSH term(s) Humans ; Staphylococcus aureus ; Bacteremia/diagnosis ; Bacteremia/drug therapy ; Bacteremia/complications ; Staphylococcal Infections/diagnosis ; Staphylococcal Infections/drug therapy ; Staphylococcal Infections/complications ; Risk Factors
    Language English
    Publishing date 2022-11-09
    Publishing country England
    Document type Journal Article ; Review ; Research Support, N.I.H., Extramural
    ZDB-ID 424417-5
    ISSN 1532-2742 ; 0163-4453
    ISSN (online) 1532-2742
    ISSN 0163-4453
    DOI 10.1016/j.jinf.2022.10.042
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Alendronate modulates cytokine responses in healthy young individuals after BCG vaccination.

    Bulut, Ozlem / Kilic, Gizem / Debisarun, Priya A / Röring, Rutger Jan / Sun, Sarah / Kolkman, Manon / van Rijssen, Esther / Ten Oever, Jaap / Koenen, Hans / Barreiro, Luis / Domínguez-Andrés, Jorge / Netea, Mihai G

    Immunology letters

    2024  Volume 267, Page(s) 106851

    Abstract: Bacillus Calmette-Guérin (BCG) vaccination induces memory characteristics in innate immune cells and their progenitors, a process called trained immunity mediated by epigenetic and metabolic reprogramming. Cholesterol synthesis plays an amplifying role ... ...

    Abstract Bacillus Calmette-Guérin (BCG) vaccination induces memory characteristics in innate immune cells and their progenitors, a process called trained immunity mediated by epigenetic and metabolic reprogramming. Cholesterol synthesis plays an amplifying role in trained immunity through mevalonate release. Nitrogen-containing bisphosphonates (N-BPs), such as alendronate, can inhibit cholesterol synthesis. We explored their effects on trained immunity induced by BCG in a placebo-controlled clinical study (NL74082.091.20) in young, healthy individuals. Participants receiving single-dose oral alendronate on the day of BCG vaccination had more neutrophils and plasma cells one month after treatment. Alendronate led to reduced proinflammatory cytokine production by PBMCs stimulated with heterologous bacterial and viral stimuli one month later. Furthermore, the addition of alendronate transcriptionally suppressed multiple immune response pathways in PBMCs upon stimulation. Our findings indicate that N-BPs modulate the long-lasting effects of BCG vaccination on the cytokine production capacity of innate immune cells.
    Language English
    Publishing date 2024-03-11
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 445150-8
    ISSN 1879-0542 ; 0165-2478
    ISSN (online) 1879-0542
    ISSN 0165-2478
    DOI 10.1016/j.imlet.2024.106851
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Pneumocystis-profylaxe bij glucocorticoïdgebruik?

    de Mast, Quirijn / Thurlings, Rogier / Ten Oever, Jaap

    Nederlands tijdschrift voor geneeskunde

    2018  Volume 162

    Abstract: Pneumocystis jiroveci pneumonia (PJP) is a much-feared complication of the use of immunosuppressive drugs. There is no current consensus on the indications for PJP prophylaxis in patients with rheumatological diseases who are receiving higher-dose ... ...

    Title translation Pneumocystis prophylaxis during glucocorticoid use?
    Abstract Pneumocystis jiroveci pneumonia (PJP) is a much-feared complication of the use of immunosuppressive drugs. There is no current consensus on the indications for PJP prophylaxis in patients with rheumatological diseases who are receiving higher-dose glucocorticoid treatment over a prolonged period. The decision on whether or not to administer prophylaxis depends primarily on the Number Needed to Treat (NNT) vs the Number Needed to Harm (NNH) of trimethoprim/sulfamethoxazole (TMP/SMX) or other forms of prophylaxis. A recent retrospective study from South Korea supports the efficacy and safety of TMP/SMX for patients using ≥ 30 mg prednisone for > 1 month, especially in those with high-risk disease or other risk factors. Surveillance of regional and national PJP incidence, along with possible predictors, may help in gaining a better understanding of risk groups and in drawing up a regional, or preferably national, protocol.
    MeSH term(s) Anti-Bacterial Agents/therapeutic use ; Glucocorticoids/adverse effects ; Humans ; Pneumonia, Pneumocystis/chemically induced ; Pneumonia, Pneumocystis/prevention & control ; Prednisone/adverse effects ; Retrospective Studies ; Risk Factors ; Trimethoprim, Sulfamethoxazole Drug Combination/therapeutic use
    Chemical Substances Anti-Bacterial Agents ; Glucocorticoids ; Trimethoprim, Sulfamethoxazole Drug Combination (8064-90-2) ; Prednisone (VB0R961HZT)
    Language Dutch
    Publishing date 2018-08-30
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 82073-8
    ISSN 1876-8784 ; 0028-2162
    ISSN (online) 1876-8784
    ISSN 0028-2162
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Current Practices and Opportunities for Outpatient Parenteral Antimicrobial Therapy in Hospitals: A National Cross-Sectional Survey.

    Stoorvogel, Hester H / Hulscher, Marlies E J L / Wertheim, Heiman F L / Yzerman, Ed P F / Scholing, Maarten / Schouten, Jeroen A / Ten Oever, Jaap

    Antibiotics (Basel, Switzerland)

    2022  Volume 11, Issue 10

    Abstract: This nationwide study assessed how outpatient parenteral antimicrobial therapy (OPAT) is organised by Dutch acute care hospitals, the barriers experienced, and how an OPAT program affects the way hospitals organised OPAT care. We systematically developed ...

    Abstract This nationwide study assessed how outpatient parenteral antimicrobial therapy (OPAT) is organised by Dutch acute care hospitals, the barriers experienced, and how an OPAT program affects the way hospitals organised OPAT care. We systematically developed and administered a survey to all 71 Dutch acute care hospitals between November 2021 and February 2022. Analyses were primarily descriptive and included a comparison between hospitals with and without an OPAT program. Sixty of the 71 hospitals (84.5%) responded. Fifty-five (91.7%) performed OPAT, with a median number of 20.8 (interquartile range [IQR] 10.3-29.7) patients per 100 hospital beds per year. Of these 55 hospitals, 31 (56.4%) had selection criteria for OPAT and 34 (61.8%) had a protocol for laboratory follow-up. Sixteen hospitals (29.1%) offered self-administered OPAT (S-OPAT), with a median percentage of 5.0% of patients (IQR: 2.3%-10.0%) actually performing self-administration. Twenty-five hospitals (45.5%) had an OPAT-related outcome registration. The presence of an OPAT program (22 hospitals, 40.0%) was significantly associated with aspects of well-organised OPAT care. The most commonly experienced barriers to OPAT implementation were a lack of financial, administrative, and IT support and insufficient time of healthcare staff. Concluding, hospital-initiated OPAT is widely available in the Netherlands, but various aspects of well-organised OPAT care can be improved. Implementation of a team-based OPAT program can contribute to such improvements. The observed variation provides leads for further scientific research, guidelines, and practical implementation programs.
    Language English
    Publishing date 2022-10-01
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2681345-2
    ISSN 2079-6382
    ISSN 2079-6382
    DOI 10.3390/antibiotics11101343
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Why we prescribe antibiotics for too long in the hospital setting: a systematic scoping review.

    Janssen, Robin M E / Oerlemans, Anke J M / Van Der Hoeven, Johannes G / Ten Oever, Jaap / Schouten, Jeroen A / Hulscher, Marlies E J L

    The Journal of antimicrobial chemotherapy

    2022  Volume 77, Issue 8, Page(s) 2105–2119

    Abstract: Background: In daily hospital practice, antibiotic therapy is commonly prescribed for longer than recommended in guidelines. Understanding the key drivers of prescribing behaviour is crucial to generate meaningful interventions to bridge this evidence- ... ...

    Abstract Background: In daily hospital practice, antibiotic therapy is commonly prescribed for longer than recommended in guidelines. Understanding the key drivers of prescribing behaviour is crucial to generate meaningful interventions to bridge this evidence-to-practice gap.
    Objectives: To identify behavioural determinants that might prevent or enable improvements in duration of antibiotic therapy in daily practice.
    Methods: We systematically searched PubMed, Embase, PsycINFO and Web of Science for relevant studies that were published between January 2000 and August 2021. All qualitative, quantitative and mixed-method studies in adults in a hospital setting that reported determinants of antibiotic therapy duration were included.
    Results: Twenty-two papers were included in this review. A first set of studies provided 82 behavioural determinants that shape how health professionals make decisions about duration; most of these were related to individual health professionals' knowledge, skills and cognitions, and to professionals' interactions. A second set of studies provided 17 determinants that point to differences in duration regarding various pathogens, diseases, or patient, professional or hospital department characteristics, but do not explain why or how these differences occur.
    Conclusions: Limited literature is available describing a wide range of determinants that influence duration of antibiotic therapy in daily practice. This review provides a stepping stone for the development of stewardship interventions to optimize antibiotic therapy duration, but more research is warranted. Stewardship teams must develop complex improvement interventions to address the wide variety of behavioural determinants, adapted to the specific pathogen, disease, patient, professional and/or hospital department involved.
    MeSH term(s) Anti-Bacterial Agents/therapeutic use ; Health Personnel ; Hospitals ; Humans
    Chemical Substances Anti-Bacterial Agents
    Language English
    Publishing date 2022-05-25
    Publishing country England
    Document type Journal Article ; Systematic Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 191709-2
    ISSN 1460-2091 ; 0305-7453
    ISSN (online) 1460-2091
    ISSN 0305-7453
    DOI 10.1093/jac/dkac162
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Activation of cytokine responses by Candida africana.

    Rosati, Diletta / Bruno, Mariolina / van de Veerdonk, Frank / Ten Oever, Jaap / Meis, Jacques F / Netea, Mihai G

    Medical mycology

    2022  Volume 60, Issue 10

    Abstract: Candida africana is a fungal pathogen that rarely causes invasive infections, but is mainly isolated from patients with vaginal infections. Vulvovaginal candidiasis is associated with dysregulated inflammatory responses of the host, however, the innate ... ...

    Abstract Candida africana is a fungal pathogen that rarely causes invasive infections, but is mainly isolated from patients with vaginal infections. Vulvovaginal candidiasis is associated with dysregulated inflammatory responses of the host, however, the innate immune responses against C. africana are currently unknown. In this study, we explored the cytokine production of human peripheral blood mononuclear cells (PBMCs) in response to different C. africana isolates (intra-species diversity), and compared it with that induced by other yeasts belonging to the C. albicans species complex such as C. dubliniensis and C. albicans. Candida africana isolates induced both pro- and anti-inflammatory cytokines broadly similar to other Candida species. Candida africana-stimulated PBMCs tended to produce lower Interleukin (IL)-17 and IL-22 levels in comparison with C. albicans, whereas the induction of trained immunity was similar between C. africana and other Candida species. Overall, our results demonstrate that C. africana induces similar innate immune responses as the other Candida species. Therefore, its propensity to cause vulvovaginal infections is not due to an increased capacity to induce cytokine-related immune pathology. Nor is the infrequent occurrence of invasive infection by C. africana explained by a quantitatively different cytokine induction.
    MeSH term(s) Animals ; Candida ; Candida albicans ; Candidiasis, Vulvovaginal/microbiology ; Candidiasis, Vulvovaginal/veterinary ; Cytokines ; Female ; Humans ; Leukocytes, Mononuclear
    Chemical Substances Cytokines
    Language English
    Publishing date 2022-04-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 1421796-x
    ISSN 1460-2709 ; 1369-3786
    ISSN (online) 1460-2709
    ISSN 1369-3786
    DOI 10.1093/mmy/myac080
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Recurrent Vulvovaginal Candidiasis: An Immunological Perspective

    Rosati, Diletta / Bruno, Mariolina / Jaeger, Martin / ten Oever, Jaap / Netea, Mihai G.

    Microorganisms. 2020 Jan. 21, v. 8, no. 2

    2020  

    Abstract: Vulvovaginal candidiasis (VVC) is a widespread vaginal infection primarily caused by Candida albicans. VVC affects up to 75% of women of childbearing age once in their life, and up to 9% of women in different populations experience more than three ... ...

    Abstract Vulvovaginal candidiasis (VVC) is a widespread vaginal infection primarily caused by Candida albicans. VVC affects up to 75% of women of childbearing age once in their life, and up to 9% of women in different populations experience more than three episodes per year, which is defined as recurrent vulvovaginal candidiasis (RVVC). RVVC results in diminished quality of life as well as increased associated healthcare costs. For a long time, VVC has been considered the outcome of inadequate host defenses against Candida colonization, as in the case of primary immunodeficiencies associated with persistent fungal infections and insufficient clearance. Intensive research in recent decades has led to a new hypothesis that points toward a local mucosal overreaction of the immune system rather than a defective host response to Candida colonization. This review provides an overview of the current understanding of the host immune response in VVC pathogenesis and suggests that a tightly regulated fungus–host–microbiota interplay might exert a protective role against recurrent Candida infections.
    Keywords Candida albicans ; fungi ; immune response ; immune system ; immunosuppression ; pathogenesis ; protective effect ; quality of life ; vulvovaginal candidiasis
    Language English
    Dates of publication 2020-0121
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2720891-6
    ISSN 2076-2607
    ISSN 2076-2607
    DOI 10.3390/microorganisms8020144
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: Antimicrobial stewardship in the emergency department: characteristics and evidence for effectiveness of interventions.

    May, Larissa / Martín Quirós, Alejandro / Ten Oever, Jaap / Hoogerwerf, Jacobien / Schoffelen, Teske / Schouten, Jeroen

    Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases

    2020  Volume 27, Issue 2, Page(s) 204–209

    Abstract: Background: Emergency departments (EDs) are the entrance gates for patients presenting with infectious diseases into the hospital, yet most antimicrobial stewardship programmes are primarily focused on inpatient management. With equally high rates of ... ...

    Abstract Background: Emergency departments (EDs) are the entrance gates for patients presenting with infectious diseases into the hospital, yet most antimicrobial stewardship programmes are primarily focused on inpatient management. With equally high rates of inappropriate antibiotic use, the ED is a frequently overlooked yet important unit for targeted antimicrobial stewardship (AMS) interventions.
    Objectives: We aimed to (a) describe the specific aspects of antimicrobial stewardship in the ED and (b) summarize the findings from improvement studies that have investigated the effectiveness of antimicrobial stewardship interventions in the ED setting.
    Sources: (a) a PubMed search for 'antimicrobial stewardship' and 'emergency department', and (b) published reviews on effectiveness combined with publications from the first source.
    Content: (a) An in depth analysis of selected publications provided four key antimicrobial use processes typically performed by front-line healthcare professionals in the ED: making a (tentative) clinical diagnosis, starting empirical therapy based on that diagnosis, performing microbiological tests before starting that therapy and following up patients who are discharged from the ED. (b) Further, we discuss the literature on improvement strategies in the ED focusing on guidelines and clinical pathways and multifaceted improvement strategies. We also summarize the evidence of microbiologic culture review.
    Implications: Based on our review of the literature, we describe four essential elements of antimicrobial use in the ED. Studying the various interventions targeting these care processes, we have found them to be of a variable degree of success. Nonetheless, while there is a paucity of AS studies specifically targeting the ED, there is a growing body of evidence that AS programmes in the ED are effective with modifications to the ED setting. We present key questions for future research.
    Language English
    Publishing date 2020-11-02
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1328418-6
    ISSN 1469-0691 ; 1470-9465 ; 1198-743X
    ISSN (online) 1469-0691
    ISSN 1470-9465 ; 1198-743X
    DOI 10.1016/j.cmi.2020.10.028
    Database MEDical Literature Analysis and Retrieval System OnLINE

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