| 1. |
- Aganovic, A., et al.
(författare)
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Ventilation design conditions associated with airborne bacteria levels within the wound area during surgical procedures: a systematic review
- 2021
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Ingår i: Journal of Hospital Infection. - : Elsevier BV. - 0195-6701 .- 1532-2939. ; 113, s. 85-95
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Forskningsöversikt (refereegranskat)abstract
- Background: Without confirmation of the ventilation design conditions (typology and airflow rate), the common practice of identifying unidirectional airflow (UDAF) systems as equivalent to ultra-clean air ventilation systems may be misleading, but also any claims about the ineffectiveness of UDAF systems should be doubted. The aim of this review was to assess and compare ventilation system design conditions for which ultra-clean air (mean <10 cfu/m ) within 50 cm from the wound has been reported. Six medical databases were systematically searched to identify and select studies reporting intraoperative airborne levels expressed as cfu/m close to the wound site, and ventilation system design conditions. Available data on confounding factors such as the number of persons present in the operating room, number of door openings, and clothing material were also included. Predictors for achieving mean airborne bacteria levels within <10 cfu/m were identified using a penalized multivariate logistic regression model. Twelve studies met the eligibility criteria and were included for analysis. UDAF systems considered had significantly higher air volume flows compared with turbulent ventilation (TV) systems considered. Ultra-clean environments were reported in all UDAF-ventilated (N = 7) rooms compared with four of 11 operating rooms equipped with TV. On multivariate analysis, the total number of air exchange rates (P=0.019; odds ratio (OR) 95% confidence interval (CI): 0.66–0.96) and type of clothing material (P=0.031; OR 95% CI: 0.01–0.71) were significantly associated with achieving mean levels of airborne bacteria <10 cfu/m . High-volume UDAF systems complying with DIN 1946-4:2008 standards for the airflow rate and ceiling diffuser size unconditionally achieve ultra-clean air close to the wound site. In conclusion, the studied articles demonstrate that high-volume UDAF systems perform as ultra-clean air systems and are superior to TV systems in reducing airborne bacteria levels close to the wound site. 3 3 3 3
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| 2. |
- Blomgren, Per-Ola
(författare)
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Clean work, the pursuit of increased adherence to hand hygiene routines : a descriptive study
- 2022
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Healthcare-associated infections (HAI) are a problem in health care worldwide. In Sweden 7-8% of all patients treated in hospital suffer from an adverse event of varying severity, of which approximately 60,000 from a HAI. Proper hand hygiene is considered the single most important measure to reduce HAI. Despite the importance, adherence to correct hand hygiene routines are lacking among healthcare workers (HCWs). The World Health Organizations (WHO) multimodal promotion strategy promotes areas that need to be addressed in order to change the behaviour of individual HCWs to optimise adherence to hand hygiene and to improve patient safety. These areas include feedback, education, reminders at the workplace and institutional safety climate. The overall aim of this study was to examine the possibility of adherence to hand hygiene routines and to explore factors that might influence the HCWs adherence. The study used a descriptive research design made through qualitative method, with focus group interviews, and quantitative method, using a questionnaire survey. Eight focus group interviews were conducted with assistant nurses (n=18), nurses (n=15) and physicians (n=5) and analysed with abductive qualitative content analysis. The questionnaire survey was answered by nurses (n=84) and nursing students in their first semester (n=71) and last semester (n=46) and the data was statistically analysed.The main findings show that there are barriers to hand hygiene adherence and measures to improve these. HCWs highlighted discrepancies regarding how the organisation was supposed to give feedback and how it actually was at the workplace and expressed needs for more direct feedback to improve adherence. The study also found that hygienic knowledge gaps exists among nurses and nursing students regarding causes of HAI and how the risk of contamination of patients and HCWs can be minimized among others. Students at the beginning of the education had a lower level of knowledge than last semester students and registered nurses. The last semester students tended to have the highest level of hand hygiene knowledge. In conclusion, the key areas presented by WHO’s multimodal promotion strategy to improve adherence all lack the appropriate measures, in some extent. The use of an electronic reminder system could give the means to improve a behaviour as long as the individual integrity is protected and development of curriculums for nursing students and continuing education of nurses is needed to further develop and maintaining knowledge.
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| 3. |
- Blomgren, Per-Ola, 1986-, et al.
(författare)
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Hand hygiene knowledge among nurses and nursing students : a descriptive cross-sectional comparative survey using the WHO's "Hand Hygiene Knowledge Questionnaire"
- 2024
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Ingår i: Infection Prevention in Practice. - : Elsevier. - 2590-0889. ; 6:2
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Tidskriftsartikel (refereegranskat)abstract
- AimTo determine the level of knowledge and explore the difference of hand hygiene between nursing students and nurses.BackgroundAnnually, 3.8 million people in Europe acquire healthcare-associated infections, highlighting the importance of hand hygiene. Despite WHO's emphasis on the fact that greater hand hygiene knowledge correlates with improved hand hygiene compliance, several studies have shown knowledge gaps among nurses and nursing students regarding hand hygiene.DesignDescriptive cross-sectional comparative survey.MethodsA version of the WHO “Hand Hygiene Knowledge Questionnaire”, translated into Swedish, was used for data collection among nursing students in the first and last semester, and registered nurses from a university and associated hospital. Data were analyzed by descriptive statistics, and comparison between groups with Fisher's exact test, one-way ANOVA, and post-hoc tests (Pairwise Z-Tests, Tukey HSD).ResultsThe survey, conducted between December 2020 and January 2021, received responses from 201 participants, including 71 first semester students, 46 last semester students and 84 registered nurses, showing moderate (55.7% [50–74% correct answers]) to good (43.8% [75–100% correct answers]) knowledge levels. First-semester students scored lower (17.0 ± 2.1) than last-semester students (18.8 ± 1.8) and registered nurses (18.3 ± 2.1) out of 25 questions.DiscussionIt is necessary for all groups to receive proper education on hand hygiene knowledge and to have an educational program that does not separate the groups but combines them with continuing education, since the students will someday be influencing future hand hygiene knowledge as a peer, together with the nurse.
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| 4. |
- Blomgren, Per-Ola, et al.
(författare)
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Healthcare workers' perceptions and acceptance of an electronic reminder system for hand hygiene
- 2021
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Ingår i: Journal of Hospital Infection. - : Elsevier. - 0195-6701 .- 1532-2939. ; 108, s. 197-204
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Tidskriftsartikel (refereegranskat)abstract
- Background:Healthcare-associated infections (HCAIs) have a large negative impact onmorbidity, mortality, and quality of life. Approximately 9% of all patients hospitalized inSweden suffer from HCAI. Hand hygiene plays a key role and is considered the single mostimportant measure to reduce HCAI. The hospital organization works actively to reduceHCAI. Implementing electronic systems to remind and/or notify healthcare workers raisesawareness of and adherence to hand hygiene. However, there is a paucity of studiesaddressing individuals’ perceptions of having such a system and how the organizationworks.Aim:To investigate healthcare workers’ perceptions of infection prevention in thehealthcare organization and perceptions and acceptance of an electronic reminder systemthat encourages good hand hygiene.Methods:Qualitative descriptive design with data collected in eight focus group inter-views including assistant nurses, nurses, and physicians (N¼38). Content analysis wasapplied and data were related to the Theory of Planned Behaviour.Findings:Healthcare workers perceive lack of feedback from the hospital organizationand are positive towards an electronic reminder system to increase adherence to handhygiene. The electronic reminder system should not register data at an individual levelsince it could be used as an instrument for control by the management that could bestressful for staff.Conclusion:In general, there is positive acceptance of the electronic reminder system,and the respondents perceived it as having the ability to change behaviour. However, theconcept has to be further developed to protect the individual’s integrity and needs to beused with feedback on a group level
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| 5. |
- Granqvist, Karin, 1974, et al.
(författare)
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Learning to interact with new technology: Health care workers’ experiences of using a monitoring system for assessing hand hygiene – a grounded theory study
- 2022
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Ingår i: American Journal of Infection Control. - : Elsevier BV. - 0196-6553 .- 1527-3296. ; 50:6, s. 651-656
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Tidskriftsartikel (refereegranskat)abstract
- Background: Recently, innovative technologies for hand hygiene (HH) monitoring have been developed to improve HH adherence in health care. This study explored health care workers’ experiences of using an electronic monitoring system to assess HH adherence. Methods: An electronic monitoring system with digital feedback was installed on a surgical ward and interviews with health care workers using the system (n = 17) were conducted. The data were analyzed according to grounded theory by Strauss and Corbin. Results: Health care workers’ experiences were expressed in terms of having trust in the monitoring system, requesting system functionality and ease of use and becoming aware of one's own performance. This resulted in the core category of learning to interact with new technology, summarized as the main strategy when using an electronic monitoring system in clinical settings. The system with digital feedback improved the awareness of HH and individual feedback was preferable to group feedback. Conclusions: Being involved in using and managing a technical innovation for assessing HH adherence in health care is a process of formulating a strategy for learning to interact with new technology. The importance of inviting health care workers to participate in the co-design of technical innovations is crucial, as it creates both trust in the innovation per se and trust in the process of learning how to use it.
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| 6. |
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| 7. |
- Lindblad, Marie, et al.
(författare)
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Infection control measures to stop the spread of sequence type 15 OXA-23-producing Acinetobacter baumannii in a Swedish Burn Center
- 2022
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Ingår i: Burns. - : Elsevier. - 0305-4179 .- 1879-1409. ; 48:8, s. 1940-1949
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To describe the course of the outbreak and infection control measures to stop the spread of sequence type 15 OXA-23-producing Acinetobacter baumannii in the Burn Center of Uppsala University Hospital, between November 2014 and the end of April 2015.METHODS: Compliance with hand hygiene, dress code, and cleaning routines were reviewed, the ward's environment was systematically investigated to identify potential environmental sources. Sampling routines for A. baumannii, from patients and environment, were established, and the epidemiological relationship was analysed for all carbapenem-resistant A. baumannii isolates using arbitrarily primed polymerase chain reaction (AP-PCR) and pulsed-field gel electrophoresis (PFGE).RESULTS: A total of 54 patients were treated at the burn intensive care unit during the studied, approximately five months period, and an OXA-23-producing A. baumannii was isolated from nine patients (9/54, 17%), whereof two died (2/9, 22.2%). All isolates shared identical PFGE-genotype patterns and belonged to sequence type 15; AP-PCR was eligible for prompt epidemiological investigations.CONCLUSIONS: Higher awareness and increased compliance with hand hygiene and dress code as well as intensified cleaning protocols of the environment and equipment were successfully established and likely to have led to stop the spread of sequence type 15 OXA-23-producing Acinetobacter baumannii.
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| 8. |
- Lytsy, Birgitta, 1968-, et al.
(författare)
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Comparison of Six Methods for Epidemiological Typing of Escherichia coli Producing Extended-Spectrum Beta-Lactamase during a Suspected Outbreak
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- During a suspected outbreak of Escherichia coli producing extended-spectrum beta-lactamase (ESBL) at Uppsala University Hospital 2005-2007, different typing methods were applied to examine their usefulness in a sharp situation. Included methods were antibiogram-based typing, PhenePlate (PhP) system, pulsed-field gel electrophoresis (PFGE), repetitive sequence-based (rep)-PCR (Diversilab), arbitrarily primed (AP)-PCR, and characterization of integrons. A PCR assay was used to define the O25b-ST131 clone, and nosocomial transmission was explored with a locally developed tracing tool. Of the 253 analyzed isolates, 70% harboured CTX-M group 1 enzymes and 19% CTX-X-M group 9 enzymes. Integrons with integrated gene cassettes were detected in 47% of the isolates and 77% were of class 1. One restriction fragment length polymorphism (RFLP) type predominated (n=48), and it was in 40% of the cases associated with the O25b-ST131 clone. Fifty-five (22%) of all isolates were PCR positive for this clone, of which the PhP-system identified 49%. Fifty isolates were further analyzed. Most methods had difficulties with recognizing the O25b-ST131 clone. Rep-PCR identified 100%, PFGE 86%, AP-PCR 68%, PCR-RFLP of integrons 39% and antibiogram types 32% of the PCR positive isolates. Epidemiological data supported a nosocomial transmission in a limited number of cases, suggesting an endemic rather than an epidemic situation. In conclusion, the genetic complexity of ESBL-producing E. coli has become a challenge for any microbiology laboratory. Although the defining O25b-ST131 PCR assay was the most efficient method to identify this epidemic clone, PCR methods cannot be applied on genetically uncharacterized E. coli strains. To rely on a single epidemiological typing method to identify strains or mobile genetic elements with epidemic potential might be insufficient.
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| 9. |
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| 10. |
- Lytsy, Birgitta, 1968-
(författare)
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Enterobacteriaceae Producing Extended-Spectrum Beta-Lactamases : Aspects of Detection, Epidemiology and Control
- 2010
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Enterobacteriaceae belong to the normal enteric flora in humans and may cause infections. Escherichia coli is the leading urinary tract pathogen with septicaemic potential, whereas Klebsiella pneumoniae causes opportunistic infections and often outbreaks in hospital settings. Beta-lactams are the first choice for treatment of infections caused by Enterobacteriaceae, and might be destroyed by extended-spectrum beta-lactamases, ESBLs. ESBLs hydrolyse all beta-lactams except cephamycin and carbapenems, and constitute a large heterogeneous group of enzymes with different origins. The phenotypic and molecular characteristics of a K. pneumoniae strain causing a major outbreak at Uppsala University Hospital between 2005 and 2008 were described. The strain was multiresistant and produced CTM-M-15, a common ESBL type in Europe. Due to the lack of obvious epidemiological links between patients, a case-control study was performed, which identified risk factors for the acquisition of the outbreak strain in urine cultures. The complex chain of transmission facilitated by patient overcrowding and the interventions applied to curb the outbreak, was revealed in the subsequent study. In the final study, the genetic background of the observed increase in ESBL-producing E. coli isolates during the K. pneumoniae outbreak was explored. The utility of six typing methods in epidemiological investigations of a local outbreak with ESBL-producing E. coli was compared. The increase of ESBL-producing E. coli isolates was not secondary to the K. pneumoniae outbreak. Twentytwo per cent belonged to the epidemic O25b-ST131 clone and only a limited number of infections were caused by nosocomial transmission. ESBL-producing Enterobacteriaceae are a challenge to clinical microbiology laboratories and infection control teams. To investigate their dissemination, typing methods need to be continuously adapted to the current situation. Proper hand disinfection and structural key problems such as over-crowding, under-staffing, lack of single rooms and bathrooms must be adressed to limit transmission.
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