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  1. Article: Adverse Outcomes of Patients with Non-Ventilator-Associated Hospital-Acquired Pneumonia (nvHAP)-A Single Centre Cohort Study.

    Amodio, Enrica / Schreiber, Peter W / Faes Hesse, Mirjam / Wolfensberger, Aline

    Infectious disease reports

    2024  Volume 16, Issue 2, Page(s) 228–238

    Abstract: Non-ventilator associated hospital-acquired pneumonia (nvHAP) is a common nosocomial infection, but little is known about the outcomes of patients with nvHAP and the risk factors for adverse outcomes. In this retrospective study conducted in a Swiss ... ...

    Abstract Non-ventilator associated hospital-acquired pneumonia (nvHAP) is a common nosocomial infection, but little is known about the outcomes of patients with nvHAP and the risk factors for adverse outcomes. In this retrospective study conducted in a Swiss tertiary care centre, adverse outcomes like in-hospital mortality, intensive care unit (ICU) admission, and mechanical ventilation, both all-cause and nvHAP-associated, were investigated. Of 244 patients with nvHAP, 72 (30%) died, 35 (14%) deaths were attributed to nvHAP. While 36 (15%) patients acquired nvHAP on the ICU, another 173 patients were eligible for ICU-transferral, and 76 (43.9%) needed ICU-admission. Of all patients hospitalized on the ICU 58 (51.8%) needed intubation due to nvHAP. Multivariable logistic regression analysis identified lower body mass index (OR per unit increase: 0.90, 95%CI: 0.82-0.98) and lower haemoglobin on admission (OR per unit in g/l increase: 0.98, 95%CI: 0.97-1.00) as patient specific factors independently associated with nvHAP-associated mortality. Given the frequency of nvHAP adverse outcomes, hospitals should evaluate increasing nvHAP prevention efforts, especially for patients at high risk for nvHAP mortality. To what extent pneumonia prevention interventions do lower nvHAP mortality in these patients is still to be evaluated.
    Language English
    Publishing date 2024-03-13
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2036-7430
    ISSN 2036-7430
    DOI 10.3390/idr16020018
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Book ; Online ; Thesis: Multiphotonenmikroskopie: Etablierung einer neuen diagnostischen Methode zur intraoperativen Evaluierung von Tumoren im Kindesalter

    Schreiber, Peter [Verfasser]

    2021  

    Author's details Peter Schreiber
    Keywords Medizin, Gesundheit ; Medicine, Health
    Subject code sg610
    Language German
    Publisher Universitätsbibliothek der Johannes Gutenberg-Universität Mainz
    Publishing place Mainz
    Document type Book ; Online ; Thesis
    Database Digital theses on the web

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  3. Article ; Online: Bacterial contamination of air and surfaces during dental procedures-An experimental pilot study using

    Franz, Jessica / Scheier, Thomas C / Aerni, Maja / Gubler, Andrea / Schreiber, Peter W / Brugger, Silvio D / Schmidlin, Patrick R

    Infection control and hospital epidemiology

    2024  Volume 45, Issue 5, Page(s) 658–663

    Abstract: Objective: The oral cavity contains numerous microorganisms, including antimicrobial-resistant bacteria. These microorganisms can be transmitted via respiratory particles from patients to healthcare providers and vice versa during dental care. We ... ...

    Abstract Objective: The oral cavity contains numerous microorganisms, including antimicrobial-resistant bacteria. These microorganisms can be transmitted via respiratory particles from patients to healthcare providers and vice versa during dental care. We evaluated the spread of
    Methods: During systematic therapy for dental biofilm removal (guided biofilm therapy), using an airflow or ultrasound device to a model simulation head.
    Results: S. aureus
    Conclusions: Although our findings indicate potential airborne bacterial transmission during routine prophylactic procedures, specific treatment options during biofilm removal appear to reduce air contamination. These options include ultrasonic piezo devices or the prototype suction device. The use of chlorhexidine reduced the CFU counts of
    MeSH term(s) Humans ; Chlorhexidine ; Staphylococcus aureus ; Pilot Projects ; Staphylococcal Infections ; Dentistry ; Water
    Chemical Substances Chlorhexidine (R4KO0DY52L) ; Water (059QF0KO0R)
    Language English
    Publishing date 2024-01-24
    Publishing country United States
    Document type Journal Article
    ZDB-ID 639378-0
    ISSN 1559-6834 ; 0195-9417 ; 0899-823X
    ISSN (online) 1559-6834
    ISSN 0195-9417 ; 0899-823X
    DOI 10.1017/ice.2023.271
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Book ; Online: Ultraflacher Pico-Arrayprojektor - UIPicA

    Schreiber, Peter

    Abschlussbericht ; Laufzeit des Vorhabens: 01.07.2011 - 30.06.2012

    2013  

    Institution Fraunhofer-Institut Angewandte Optik und Feinmechanik
    Author's details Fraunhofer IOF. [Peter Schreiber, Projektleiter]
    Language German
    Size Online-Ressource (12 S., 1,92 MB), Ill., graph. Darst.
    Publisher Technische Informationsbibliothek u. Universitätsbibliothek
    Publishing place Hannover ; Jena
    Document type Book ; Online
    Note Förderkennzeichen BMBF 16SV5594 ; Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  5. Article ; Online: Documentation of adherence to infection prevention best practice in patient records: a mixed-methods investigation.

    Hascic, Alen / Wolfensberger, Aline / Clack, Lauren / Schreiber, Peter W / Kuster, Stefan P / Sax, Hugo

    Antimicrobial resistance and infection control

    2022  Volume 11, Issue 1, Page(s) 107

    Abstract: Background: Healthcare-associated infections remain a preventable cause of patient harm in healthcare. Full documentation of adherence to evidence-based best practices for each patient can support monitoring and promotion of infection prevention ... ...

    Abstract Background: Healthcare-associated infections remain a preventable cause of patient harm in healthcare. Full documentation of adherence to evidence-based best practices for each patient can support monitoring and promotion of infection prevention measures. Thus, we reviewed the extent, nature, and determinants of the documentation of infection prevention (IP) standards in patients with HAI.
    Methods: We reviewed electronic patient records (EMRs) of patients included in four annual point-prevalence studies 2013-2016 who developed a device- or procedure-related HAI (surgical site infection (SSI), catheter-associated urinary tract infection (CAUTI), ventilator-associated infection (VAP), catheter-related bloodstream infection (CRBSI)). We examined the documentation quality of mandatory preventive measures published as institutional IP standards. Additionally, we undertook semi-structured interviews with healthcare providers and a two-step inductive (grounded theory) and deductive (Theory of Planned Behaviour) content analysis.
    Results: Of overall 2972 surveyed patients, 249 (8.4%) patients developed 272 healthcare-associated infections. Of these, 116 patients met the inclusion criteria, classified as patients with SSI, CAUTI, VAP, CRBSI in 78 (67%), 21 (18%), 10 (9%), 7 (6%), cases, respectively. We found documentation of IP measures in EMRs in 432/1308 (33%) cases. Documentation of execution existed in the study patients' EMRs for SSI, CAUTI, VAP, CRBSI, and overall, in 261/931 (28%), 27/104 (26%), 46/122 (38%), 26/151 (17%), and 360/1308 (28%) cases, respectively, and documentation of non-execution in 67/931 (7%), 2/104 (2%), 0/122 (0%), 3/151 (2%), and 72/1308 (6%) cases, respectively. Healthcare provider attitudes, subjective norms, and perceived behavioural control indicated reluctance to document IP standards.
    Conclusions: EMRs rarely included conclusive data about adherence to IP standards. Documentation had to be established indirectly through data captured for other reasons. Mandatory institutional documentation protocols or technically automated documentation may be necessary to address such shortcomings in patient safety documentation.
    MeSH term(s) Catheter-Related Infections/prevention & control ; Cross Infection/prevention & control ; Documentation ; Humans ; Pneumonia, Ventilator-Associated/prevention & control ; Surgical Wound Infection/prevention & control ; Urinary Tract Infections/prevention & control
    Language English
    Publishing date 2022-08-25
    Publishing country England
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 2666706-X
    ISSN 2047-2994 ; 2047-2994
    ISSN (online) 2047-2994
    ISSN 2047-2994
    DOI 10.1186/s13756-022-01139-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Parallel dynamics in the yield of universal SARS-CoV-2 admission screening and population incidence.

    Schreiber, Peter W / Scheier, Thomas / Wolfensberger, Aline / Saleschus, Dirk / Vazquez, Miriam / Kouyos, Roger / Zingg, Walter

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 7296

    Abstract: The majority of SARS-CoV-2 transmissions originates from either asymptomatic or presymptomatic individuals. To prevent unnoticed introduction of SARS-CoV-2, many hospitals have implemented universal admission screening during the COVID-19 pandemic. The ... ...

    Abstract The majority of SARS-CoV-2 transmissions originates from either asymptomatic or presymptomatic individuals. To prevent unnoticed introduction of SARS-CoV-2, many hospitals have implemented universal admission screening during the COVID-19 pandemic. The present study aimed to investigate associations between results of an universal SARS-CoV-2 admission screening and public SARS-CoV-2 incidence. Over a study period of 44 weeks, all patients admitted to a large tertiary care hospital were tested for SARS-CoV-2 by polymerase chain reaction. SARS-CoV-2 positive patients were retrospectively categorized as symptomatic or asymptomatic at admission. Cantonal data were used to calculate weekly incidence rates per 100,000 inhabitants. We used regression models for count data to assess the association of the weekly cantonal incidence rate and the proportion of positive SARS-CoV-2 tests in the canton with (a) the proportion of SARS-CoV-2 positive individuals and (b) the proportion of asymptomatic SARS-CoV-2 infected individuals identified in universal admission screening, respectively. In a 44-week period, a total of 21,508 admission screenings were performed. SARS-CoV-2 PCR was positive in 643 (3.0%) individuals. In 97 (15.0%) individuals, the positive PCR reflected residual viral replication after recent COVID-19, 469 (72.9%) individuals had COVID-19 symptoms and 77 (12.0%) SARS-CoV-2 positive individuals were asymptomatic. Cantonal incidence correlated with the proportion of SARS-CoV-2 positive individuals [rate ratio (RR): 2.03 per 100 point increase of weekly incidence rate, 95%CI 1.92-2.14] and the proportion of asymptomatic SARS-CoV-2 positive individuals (RR: 2.40 per 100 point increase of weekly incidence rate, 95%CI 2.03-2.82). The highest correlation between dynamics in cantonal incidence and results of admission screening was observed at a lag time of one week. Similarly, the proportion of positive SARS-CoV-2 tests in the canton of Zurich correlated with the proportion of SARS-CoV-2 positive individuals (RR: 2.86 per log increase in the proportion of positive SARS-CoV-2 tests in the canton, 95%CI 2.56-3.19) and the proportion of asymptomatic SARS-CoV-2 positive individuals (RR: 6.50 per log increase in the proportion of positive SARS-CoV-2 tests in the canton, 95%CI 3.93-10.75) in admission screening. Around 0.36% of admission screenings were positive in asymptomatic patients. Admission screening results paralleled changes in population incidence with a brief lag.
    MeSH term(s) Humans ; SARS-CoV-2 ; COVID-19/diagnosis ; COVID-19/epidemiology ; Incidence ; Retrospective Studies ; Pandemics
    Language English
    Publishing date 2023-05-05
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-33824-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Mycobacterium chimaera infections associated with heater-cooler units in cardiac surgery.

    Schreiber, Peter W / Sax, Hugo

    Current opinion in infectious diseases

    2017  Volume 30, Issue 4, Page(s) 388–394

    Abstract: Purpose of review: Mycobacterium chimaera infections following cardiac surgery have been reported from an increasing number of countries. These infections are characterized by a poor prognosis with a case fatality rate around 50% despite treatment. ... ...

    Abstract Purpose of review: Mycobacterium chimaera infections following cardiac surgery have been reported from an increasing number of countries. These infections are characterized by a poor prognosis with a case fatality rate around 50% despite treatment. Since the first description in 2013, our understanding has grown steadily. Several outbreak investigations, case series, and experiments with heater-cooler units (HCUs) have been published. This review summarizes the current knowledge.
    Recent findings: M. chimaera transmission occurs during cardiopulmonary bypass via bioaerosols emitted from contaminated HCU water systems. Manifestations of M. chimaera infection comprise endocarditis, vascular graft infections, surgical site infections, and dissemination. So far, all cases were exposed to a single HCU brand. Samples from the manufacturing site as well as clonality of M. chimaera strains isolated from HCUs and patients suggest a contamination already at time of delivery representing the main source for the outbreak. Nevertheless, HCU contamination in hospitals cannot be excluded.
    Summary: Improved awareness of physicians of M. chimaera infection is crucial to prompt adequate diagnostic workup in patients that have been exposed to HCU presenting with compatible symptoms. For risk mitigation, strict separation between the air volume in contact with HCUs and critical clinical areas such as operating rooms is essential.
    Language English
    Publishing date 2017-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 645085-4
    ISSN 1473-6527 ; 1535-3877 ; 0951-7375 ; 1355-834X
    ISSN (online) 1473-6527 ; 1535-3877
    ISSN 0951-7375 ; 1355-834X
    DOI 10.1097/QCO.0000000000000385
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Systematic scoping review of automated systems for the surveillance of healthcare-associated bloodstream infections related to intravascular catheters.

    Lotfinejad, Nasim / Januel, Jean-Marie / Tschudin-Sutter, Sarah / Schreiber, Peter W / Grandbastien, Bruno / Damonti, Lauro / Lo Priore, Elia / Scherrer, Alexandra / Harbarth, Stephan / Catho, Gaud / Buetti, Niccolò

    Antimicrobial resistance and infection control

    2024  Volume 13, Issue 1, Page(s) 25

    Abstract: Introduction: Intravascular catheters are crucial devices in medical practice that increase the risk of healthcare-associated infections (HAIs), and related health-economic adverse outcomes. This scoping review aims to provide a comprehensive overview ... ...

    Abstract Introduction: Intravascular catheters are crucial devices in medical practice that increase the risk of healthcare-associated infections (HAIs), and related health-economic adverse outcomes. This scoping review aims to provide a comprehensive overview of published automated algorithms for surveillance of catheter-related bloodstream infections (CRBSI) and central line-associated bloodstream infections (CLABSI).
    Methods: We performed a scoping review based on a systematic search of the literature in PubMed and EMBASE from 1 January 2000 to 31 December 2021. Studies were included if they evaluated predictive performance of automated surveillance algorithms for CLABSI/CRBSI detection and used manually collected surveillance data as reference. We assessed the design of the automated systems, including the definitions used to develop algorithms (CLABSI versus CRBSI), the datasets and denominators used, and the algorithms evaluated in each of the studies.
    Results: We screened 586 studies based on title and abstract, and 99 were assessed based on full text. Nine studies were included in the scoping review. Most studies were monocentric (n = 5), and they identified CLABSI (n = 7) as an outcome. The majority of the studies used administrative and microbiological data (n = 9) and five studies included the presence of a vascular central line in their automated system. Six studies explained the denominator they selected, five of which chose central line-days. The most common rules and steps used in the algorithms were categorized as hospital-acquired rules, infection rules (infection versus contamination), deduplication, episode grouping, secondary BSI rules (secondary versus primary BSI), and catheter-associated rules.
    Conclusion: The automated surveillance systems that we identified were heterogeneous in terms of definitions, datasets and denominators used, with a combination of rules in each algorithm. Further guidelines and studies are needed to develop and implement algorithms to detect CLABSI/CRBSI, with standardized definitions, appropriate data sources and suitable denominators.
    MeSH term(s) Humans ; Catheter-Related Infections/diagnosis ; Catheter-Related Infections/epidemiology ; Catheter-Related Infections/etiology ; Catheterization, Central Venous ; Bacteremia/diagnosis ; Bacteremia/epidemiology ; Bacteremia/etiology ; Cross Infection/microbiology ; Central Venous Catheters/adverse effects ; Central Venous Catheters/microbiology ; Delivery of Health Care
    Language English
    Publishing date 2024-02-28
    Publishing country England
    Document type Systematic Review ; Journal Article ; Review
    ZDB-ID 2666706-X
    ISSN 2047-2994 ; 2047-2994
    ISSN (online) 2047-2994
    ISSN 2047-2994
    DOI 10.1186/s13756-024-01380-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Does continuity in nursing staff matter? A pilot study on correlation of central line-associated bloodstream infections and employee turnover.

    Scheier, Thomas / Kuster, Stefan P / Dunic, Mesida / Falk, Christian / Sax, Hugo / Schreiber, Peter W

    Antimicrobial resistance and infection control

    2021  Volume 10, Issue 1, Page(s) 90

    Abstract: Background: Understaffing has been previously reported as a risk factor for central line-associated bloodstream infections (CLABSI). No previous study addressed the question whether fluctuations in staffing have an impact on CLABSI incidence. We ... ...

    Abstract Background: Understaffing has been previously reported as a risk factor for central line-associated bloodstream infections (CLABSI). No previous study addressed the question whether fluctuations in staffing have an impact on CLABSI incidence. We analyzed prospectively collected CLABSI surveillance data and data on employee turnover of health care workers (HCW) to address this research question.
    Methods: In January 2016, a semiautomatic surveillance system for CLABSI was implemented at the University Hospital Zurich, a 940 bed tertiary care hospital in Switzerland. Monthly incidence rates (CLABSI/1000 catheter days) were calculated and correlations with human resources management-derived data on employee turnover of HCWs (defined as number of leaving HCWs per month divided by the number of employed HCWs) investigated.
    Results: Over a period of 24 months, we detected on the hospital level a positive correlation of CLABSI incidence rates and turnover of nursing personnel (Spearman rank correlation, r = 0.467, P = 0.022). In more detailed analyses on the professional training of nursing personnel, a correlation of CLABSI incidence rates and licensed practical nurses (Spearman rank correlation, r = 0.26, P = 0.038) or registered nurses (r = 0.471, P = 0.021) was found. Physician turnover did not correlate with CLABSI incidence (Spearman rank correlation, r =  -0.058, P = 0.787).
    Conclusions: Prospectively determined CLABSI incidence correlated positively with the degree of turnover of nurses overall and nurses with advanced training, but not with the turnover of physicians. Efforts to maintain continuity in nursing staff might be helpful for sustained reduction in CLABSI rates.
    MeSH term(s) Catheter-Related Infections/epidemiology ; Catheterization, Central Venous ; Cross Infection/epidemiology ; Hospitals, University ; Humans ; Incidence ; Nursing Staff/supply & distribution ; Personnel Turnover ; Pilot Projects ; Sepsis/epidemiology ; Switzerland/epidemiology ; Tertiary Care Centers
    Language English
    Publishing date 2021-06-06
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2666706-X
    ISSN 2047-2994 ; 2047-2994
    ISSN (online) 2047-2994
    ISSN 2047-2994
    DOI 10.1186/s13756-021-00958-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: The global outbreak of Mycobacterium chimaera infections in cardiac surgery-a systematic review of whole-genome sequencing studies and joint analysis.

    Schreiber, Peter W / Kohl, Thomas A / Kuster, Stefan P / Niemann, Stefan / Sax, Hugo

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

    2021  Volume 27, Issue 11, Page(s) 1613–1620

    Abstract: Background: With the increasing dimensions of the international cardiac surgery-associated Mycobacterium chimaera outbreak the hypothesis of a point source arose.: Objectives: To review the published evidence of clonality among cardiac surgery- ... ...

    Abstract Background: With the increasing dimensions of the international cardiac surgery-associated Mycobacterium chimaera outbreak the hypothesis of a point source arose.
    Objectives: To review the published evidence of clonality among cardiac surgery-associated M. chimaera isolates evaluated by whole-genome sequencing (WGS) and to perform an integrative genomic analysis of available genome data.
    Data sources: We searched PubMed and EMBASE for studies applying WGS on cardiac surgery-associated M. chimaera isolates.
    Study eligibility criteria: We included studies that applied WGS on more than a single M. chimaera isolate.
    Methods: Two authors independently extracted data from included studies. Available genome data from published studies were subjected to a joint analysis.
    Results: Of 121 identified articles, nine studies were included. M. chimaera isolates from LivaNova heater-cooler devices (HCDs) had a high level of genetic similarity, but were genetically distant from isolates from HCDs produced by other manufacturers. With the exception of a single (11.1%) study, the remaining eight (89.9%) studies reported a high level of genetic proximity between the majority of M. chimaera isolates derived from cardiac surgery-associated patients and LivaNova HCDs. In-depth analysis revealed involvement of three distinct M. chimaera subgroups in the outbreak (1.1, 1.8, 2.1), with 1.1 suggested as causative of the outbreak. Samples taken at the LivaNova production site supported contamination with strains of subgroups 1.1 and 1.8. In the combined analysis of 526 publicly available WGS data sets, nearly all isolates from cardiac surgery-associated patients contained strain 1.1 (50/52, 96.2%), and at least one of the outbreak strains was found in almost all LivaNova HCDs (241/257, 93.8%), with strain 1.1 in particular present in 198/257 (77.0%).
    Conclusions: HCD contamination during production seems plausible as the predominant point source for the global M. chimaera outbreak. Although HCDs can be contaminated with mixed populations, M. chimaera strains of the subgroup 1.1 caused most infections.
    MeSH term(s) Cardiac Surgical Procedures/adverse effects ; Disease Outbreaks ; Equipment Contamination ; Humans ; Mycobacterium/genetics ; Mycobacterium Infections/epidemiology
    Language English
    Publishing date 2021-07-20
    Publishing country England
    Document type Journal Article ; Review ; Systematic 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.2021.07.017
    Database MEDical Literature Analysis and Retrieval System OnLINE

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