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Mao S, Soputhy C, Lay S, Jacobs J, Ku GM, Chau D, Chhea C, Ir P. The barriers and facilitators of implementing a national laboratory-based AMR surveillance system in Cambodia: key informants' perspectives and assessments of microbiology laboratories. Front Public Health 2023; 11:1332423. [PMID: 38179556 PMCID: PMC10764616 DOI: 10.3389/fpubh.2023.1332423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 12/06/2023] [Indexed: 01/06/2024] Open
Abstract
Background Collecting data on antimicrobial resistance (AMR) is an essential approach for defining the scope of the AMR problem, developing evidence-based interventions and detecting new and emerging resistances. Our study aimed to identify key factors influencing the implementation of a laboratory-based AMR surveillance system in Cambodia. This will add additional insights to the development of a sustainable and effective national AMR surveillance system in Cambodia and other low- and middle-income countries. Methods Key informants with a role in governing or contributing data to the laboratory-based surveillance system were interviewed. Emerging themes were identified using the framework analysis method. Laboratories contributing to the AMR surveillance system were assessed on their capacity to conduct quality testing and report data. The laboratory assessment tool (LAT), developed by the World Health Organisation (WHO), was adapted for assessment of a diagnostic microbiology laboratory covering quality management, financial and human resources, data management, microbiology testing performance and surveillance capacity. Results Key informants identified inadequate access to laboratory supplies, an unsustainable financing system, limited capacity to collect representative data and a weak workforce to be the main barriers to implementing an effective surveillance system. Consistent engagement between microbiology staff and clinicians were reported to be a key factor in generating more representative data for the surveillance system. The laboratory assessments identified issues with quality assurance and data analysis which may reduce the quality of data being sent to the surveillance system and limit the facility-level utilisation of aggregated data. A weak surveillance network and poor guidance for outbreak response were also identified, which can reduce the laboratories' opportunities in detecting critical or emerging resistance occurring in the community or outside of the hospital's geographical coverage. Conclusion This study identified two primary concerns: ensuring a sustainable and quality functioning of microbiology services at public healthcare facilities and overcoming sampling bias at sentinel sites. These issues hinder Cambodia's national AMR surveillance system from generating reliable evidence to incorporate into public health measures or clinical interventions. These findings suggest that more investments need to be made into microbiology diagnostics and to reform current surveillance strategies for enhanced sampling of AMR cases at hospitals.
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Affiliation(s)
- Sovathiro Mao
- National Institute of Public Health, Phnom Penh, Cambodia
| | | | - Sokreaksa Lay
- National Institute of Public Health, Phnom Penh, Cambodia
| | - Jan Jacobs
- Institute of Tropical Medicine Antwerp, Antwerp, Belgium
- Department of Microbiology, Immunology, and Transplantation, KU Leuven, Leuven, Belgium
| | - Grace Marie Ku
- Institute of Tropical Medicine Antwerp, Antwerp, Belgium
- Department of Frailty in Ageing Research, Vrije Universiteit Brussel, Brussels, Belgium
| | - Darapheak Chau
- National Institute of Public Health, Phnom Penh, Cambodia
| | | | - Por Ir
- National Institute of Public Health, Phnom Penh, Cambodia
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2
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Otaigbe II, Elikwu CJ. Drivers of inappropriate antibiotic use in low- and middle-income countries. JAC Antimicrob Resist 2023; 5:dlad062. [PMID: 37265987 PMCID: PMC10230568 DOI: 10.1093/jacamr/dlad062] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
Antimicrobial resistance (AMR) is a global security threat that accounts for about 700 000 deaths annually. Studies have shown that antimicrobial resistance could result in a 2% to 3.5% reduction in global Gross Domestic Product by 2050 and a loss of between 60 and 100 trillion US dollars, worth of economic output resulting in significant and widespread human suffering. Low- and middle-income countries (LMICs) will be worse hit by an unchecked rise of AMR. For example, it is predicted that AMR could kill about 4.1 million people in Africa by 2050 if it is not curbed. Similarly rising rates of AMR will lead to increased treatment costs and an inability to attain universal health coverage, in LMICs with fragile health systems. Sadly, AMR is driven by the inappropriate use of antimicrobials, especially antibiotics. Inappropriate antibiotic use is a pertinent problem in LMICs where regulatory frame works are weak. Inappropriate antibiotic use in LMICs is a multifaceted problem that cuts across clinical and veterinary medicine and agriculture. Therefore, efforts geared at curbing inappropriate antibiotic use in LMICs must identify the factors that drive this problem (i.e. inappropriate antibiotic use) in these countries. A clear knowledge of these factors will guide effective policy and decision making to curb inappropriate antibiotic use and ultimately AMR. The focus of this review is to discuss the factors that drive inappropriate antibiotic use in LMICs.
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Affiliation(s)
| | - Charles John Elikwu
- Department of Medical Microbiology, School of Basic Clinical Sciences, Benjamin Carson (Snr.) College of Health & Medical Sciences, Babcock University, Ilishan Remo, Ogun State, Nigeria
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3
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Pauwels I, Versporten A, Vermeulen H, Vlieghe E, Goossens H. Assessing the impact of the Global Point Prevalence Survey of Antimicrobial Consumption and Resistance (Global-PPS) on hospital antimicrobial stewardship programmes: results of a worldwide survey. Antimicrob Resist Infect Control 2021; 10:138. [PMID: 34583775 PMCID: PMC8478001 DOI: 10.1186/s13756-021-01010-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 09/13/2021] [Indexed: 03/12/2023] Open
Abstract
BACKGROUND The Global Point Prevalence Survey of Antimicrobial Consumption and Resistance (Global-PPS) provides a methodology to support hospitals worldwide in collecting antimicrobial use data. We aim to evaluate the impact of the Global-PPS on local antimicrobial stewardship (AMS) programmes and assess health care professionals' educational needs and barriers for implementing AMS. METHODS A cross-sectional survey was disseminated within the Global-PPS network. The target audience consisted of hospital healthcare workers, involved in local surveillance of antimicrobial consumption and resistance. This included contacts from hospitals that already participated in the Global-PPS or were planning to do so. The survey contained 24 questions that addressed the hospital's AMS activities, experiences conducting the PPS, as well as the learning needs and barriers for implementing AMS. RESULTS A total of 248 hospitals from 74 countries participated in the survey, of which 192 had already conducted the PPS at least once. The survey response rate was estimated at 25%. In 96.9% of these 192 hospitals, Global-PPS participation had led to the identification of problems related to antimicrobial prescribing. In 69.3% at least one of the hospital's AMS components was initiated as a result of Global-PPS findings. The level of AMS implementation varied across regions. Up to 43.1% of all hospitals had a formal antimicrobial stewardship strategy, ranging from 10.8% in Africa to 60.9% in Northern America. Learning needs of hospitals in high-income countries and in low-and middle-income countries were largely similar and included general topics (e.g. 'optimising antibiotic treatment'), but also PPS-related topics (e.g. 'translating PPS results into meaningful interventions'). The main barriers to implementing AMS programmes were a lack of time (52.7%), knowledge on good prescribing practices (42.0%), and dedicated funding (39.9%). Hospitals in LMIC more often reported unavailability of prescribing guidelines, insufficient laboratory capacity and suboptimal use of the available laboratory services. CONCLUSIONS Although we observed substantial variation in the level of AMS implementation across regions, the Global-PPS has been very useful in informing stewardship activities in many participating hospitals. More is still to be gained in guiding hospitals to integrate the PPS throughout AMS activities, building on existing structures and processes.
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Affiliation(s)
- Ines Pauwels
- Laboratory of Medical Microbiology, Vaccine & Infectious Disease Institute (VAXINFECTIO), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.
| | - Ann Versporten
- Laboratory of Medical Microbiology, Vaccine & Infectious Disease Institute (VAXINFECTIO), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Helene Vermeulen
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics (I-BIOSTAT), Data Science Institute, Hasselt University, Diepenbeek, Belgium
| | - Erika Vlieghe
- Department of General Internal Medicine, Infectious Diseases and Tropical Medicine, University Hospital Antwerp, Antwerp, Belgium
- Global Health Institute, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Herman Goossens
- Laboratory of Medical Microbiology, Vaccine & Infectious Disease Institute (VAXINFECTIO), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
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4
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Chandna A, Bonhoeffer M, Miliya T, Suy K, Sao S, Turner P. Improving Treatment and Outcomes for Melioidosis in Children, Northern Cambodia, 2009-2018. Emerg Infect Dis 2021; 27:1169-1172. [PMID: 33754990 PMCID: PMC8007301 DOI: 10.3201/eid2704.201683] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
We report trends in manifestations, treatment, and outcomes of 355 children with culture-confirmed melioidosis over 10 years at a pediatric hospital in northern Cambodia. Bacteremia and presentation with pneumonia were risk factors for death. A total of 39 children recovered after being given only oral antimicrobial drug treatment.
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5
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Shakeel S, Iffat W, Qamar A, Ghuman F, Yamin R, Ahmad N, Ishaq SM, Gajdács M, Patel I, Jamshed S. Pediatricians' Compliance to the Clinical Management Guidelines for Community-Acquired Pneumonia in Infants and Young Children in Pakistan. Healthcare (Basel) 2021; 9:healthcare9060701. [PMID: 34207813 PMCID: PMC8227315 DOI: 10.3390/healthcare9060701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/26/2021] [Accepted: 06/04/2021] [Indexed: 11/16/2022] Open
Abstract
Community-acquired pneumonia (CAP) is among the most commonly prevailing acute infections in children that may require hospitalization. Inconsistencies among suggested care and actual management practices are usually observed, which raises the need to assess local clinical practices. The current study was conducted to evaluate pediatricians’ compliance with the standard clinical practice guidelines and their antibiotic-prescribing behavior for the management of CAP in children. Methods: A descriptive cross-sectional study was conducted using a self-administered questionnaire; which was provided to pediatricians by the researchers. Statistical analysis was performed with SPSS 25 Statistics; χ2 tests (or Fisher-exact tests) with the p-value set at < 0.05 as the threshold for statistical significance. Results: The overall response rate was 59.2%. Male respondents were (n = 101; 42.6%), and the respondents (n = 163; 68.7%) were under 30 years of age. Amoxicillin (n = 122; 51.5%) was considered as the most commonly used first-line treatment for non-severe pneumonia, whereas a smaller proportion (n = 81; 34.2%) of respondents selected amoxicillin–clavulanate. Likewise, amoxicillin (n = 100; 42.2%) was the most popular choice for non-severe pneumonia in hospitalized children; however, if children had used antibiotics earlier to admission, respondents showed an inclination to prescribe a macrolide (n = 95; 40.0%) or second-generation cephalosporin (n = 90; 37.9%). More than 90% responded that children <6 months old with suspected bacterial CAP will probably receive better therapeutic care by hospitalization. Restricting exposure to the antibiotic as much as possible (n = 71; 29.9%), improving antibiotic prescribing (n = 59; 24.8%), and using the appropriate dose of antimicrobials (n = 29; 12.2%) were considered the major factors by the respondents to reduce antimicrobials resistance. Conclusions: The selection of antibiotics and diagnostic approach was as per the recommendations, but indication, duration of treatment, and hospitalization still can be further improved.
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Affiliation(s)
- Sadia Shakeel
- Faculty of Pharmaceutical Sciences, Dow College of Pharmacy, Dow University of Health Sciences, Karachi 74200, Pakistan; (S.S.); (W.I.)
| | - Wajiha Iffat
- Faculty of Pharmaceutical Sciences, Dow College of Pharmacy, Dow University of Health Sciences, Karachi 74200, Pakistan; (S.S.); (W.I.)
| | - Ambreen Qamar
- Department of Physiology, Dr. Ishrat Ul Ebad Khan Institute of Oral Health Sciences (DIKIOHS), Dow University of Health Sciences, Karachi 74200, Pakistan;
| | - Faiza Ghuman
- Dow University Hospital, Dow University of Health Sciences, Karachi 74200, Pakistan;
| | - Rabia Yamin
- Department of Pediatrics, National Institute of Child Health, Karachi 74200, Pakistan;
| | - Nausheen Ahmad
- Jinnah Postgraduate Medical Centre, Department of Chest Medicine, Karachi 74200, Pakistan;
| | - Saqib Muhammad Ishaq
- Scientific Assistant, Karachi Institute of Radiotherapy and Nuclear Medicine (KIRAN), Karachi 74200, Pakistan;
| | - Márió Gajdács
- Faculty of Medicine, Institute of Medical Microbiology, Semmelweis University, 1089 Budapest, Hungary;
- Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, 6720 Szeged, Hungary
| | - Isha Patel
- School of Pharmacy, Marshall University, Huntington, WV 25755, USA;
| | - Shazia Jamshed
- Department of Clinical Pharmacy and Practice, Faculty of Pharmacy, Universiti Sultan Zainal Abidin, (UniSZA), Kuala Terengganu 21300, Malaysia
- Qualitative Research-Methodological Application in Health Sciences Research Group, Kulliyyah of Pharmacy, International Islamic University Malaysia, Kuantan 25200, Malaysia
- Correspondence:
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6
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Wong DC, Nwe K, Evans R, Nelissen N, Larsen ME. Quantity and type of peer-reviewed evidence for popular free medical apps: Cross-sectional review. Int J Med Inform 2021; 148:104416. [PMID: 33601253 DOI: 10.1016/j.ijmedinf.2021.104416] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/03/2021] [Accepted: 02/07/2021] [Indexed: 01/08/2023]
Abstract
INTRODUCTION - Mobile apps are being increasingly used as a tool to deliver clinical care. Evidence of efficacy for such apps varies, and appropriate levels of evidence may depend on the app's intended use. The UK's National Institute for Health and Care Excellence (NICE) recently developed an evidence standards framework, aiming to explicitly set out the required standards of evidence for different categories of digital health technologies. To determine current compliance with the evidence standards framework, the current study quantified the amount and type of peer-reviewed evidence associated with a cross-section of popular medical apps. METHODS - Apps were identified by selecting the top 100 free medical apps in the Apple App Store and all free apps in the NHS Apps Library. Each app was assigned to one of the four tiers (1, 2, 3a, 3b) in the NICE evidence standards framework. For each app, we conducted searches in Ovid-MEDLINE, Web of Science, Google Scholar, and via manufacturer websites to identify any published articles that assessed the app. This allowed us to determine our primary outcome, whether apps in tiers 3a/3b were more likely than apps in tier 1/2 to be associated with academic peer-reviewed evidence. RESULTS - We reviewed 125 apps in total (Apple App Store (n = 72), NHS Apps Library (n = 45), both (n = 8), of which 54 were categorized into the higher evidence standards framework tiers, 3a/3b. After screening, we extracted 105 relevant articles which were associated with 25 of the apps. Only 6 articles, pertaining to 3 apps, were reports of randomised controlled trials. Apps in tiers 3a/3b were more likely to be associated with articles than apps in lower tiers (χ2 = 5.54, p = .01). The percentage of tier 3a/3b apps with associated articles was similar for both the NHS Apps Library (10/28) and Apple App store (7/24), (χ2 = 0.042, p = .84). DISCUSSION - Apps that were in higher tiers 3a and 3b, indicating higher clinical risk, were more likely to have an associated article than those in lower categories. However, even in these tiers, supporting peer-reviewed evidence was missing in the majority of instances. In our sample, Apps from the NHS Apps Library were more no more likely to have supporting evidence than popular Apple App Store apps. This is of concern, given that NHS approval may influence uptake of app usage.
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Affiliation(s)
- David C Wong
- Centre for Health Informatics, University of Manchester, UK.
| | - Khine Nwe
- Leeds Institute of Health Sciences, University of Leeds, UK
| | - Ruth Evans
- Leeds Institute of Health Sciences, University of Leeds, UK
| | | | - Mark E Larsen
- Black Dog Institute, UNSW Sydney, Randwick, New South Wales, Australia
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7
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Lester R, Haigh K, Wood A, MacPherson EE, Maheswaran H, Bogue P, Hanger S, Kalizang'oma A, Srirathan V, Kulapani D, Mallewa J, Nyirenda M, Jewell CP, Heyderman R, Gordon M, Lalloo DG, Tolhurst R, Feasey NA. Sustained Reduction in Third-generation Cephalosporin Usage in Adult Inpatients Following Introduction of an Antimicrobial Stewardship Program in a Large, Urban Hospital in Malawi. Clin Infect Dis 2020; 71:e478-e486. [PMID: 32060523 PMCID: PMC7713689 DOI: 10.1093/cid/ciaa162] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 02/13/2020] [Indexed: 11/30/2022] Open
Abstract
Background Third-generation cephalosporins (3GC) remain the first-choice empiric antibiotic for severe infection in many sub-Saharan African hospitals. In Malawi, the limited availability of alternatives means that strategies to prevent the spread of 3GC resistance are imperative; however, suitable approaches to antimicrobial stewardship (AMS) in low-income settings are not well studied. Methods We introduced an AMS intervention to Queen Elizabeth Central Hospital in Blantyre. The intervention consisted of a prescribing application for smartphones and regular point-prevalence surveys with prescriber feedback. We evaluate the effects of the intervention on 3GC usage and on the cost of providing antibiotics. Using a thematic analysis of semi-structured interviews and participant observations, we additionally evaluate the acceptability of the stewardship program. Results The proportion of antibiotic prescriptions for a 3GC reduced from 193/241 (80.1%) to 177/330 (53.6%; percentage decrease, 26.5%; 95% confidence interval, 18.7–34.1) with no change in the case-fatality rate. The cost analysis estimated an annual savings of US$15 000. Qualitative research revealed trust in the guideline and found that its accessibility through smartphones helpful to guide clinical decisions. Operational health-system barriers and hierarchal clinical relationships lead to continued reliance on 3GC. Conclusions We report the successful introduction of an antimicrobial stewardship approach in Malawi. By focusing on pragmatic interventions and simple aims, we demonstrate the feasibility, acceptability, and cost savings of a stewardship program where resources are limited. In doing so, we provide a suitable starting point for expansions of AMS interventions in this and other low-income settings.
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Affiliation(s)
- Rebecca Lester
- Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi.,Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Kate Haigh
- Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi.,Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Alasdair Wood
- Health Protection Team, Public Health England, Bristol, United Kingdom
| | - Eleanor E MacPherson
- Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi.,Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | | | - Patrick Bogue
- Conflict and Health Research Group, Kings College London, London, United Kingdom
| | - Sofia Hanger
- Imperial College Healthcare National Health Service Trust, London, United Kingdom
| | - Akuzike Kalizang'oma
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - Vinothan Srirathan
- Northumbria Healthcare National Health Service Trust, Newcastle, United Kingdom
| | - David Kulapani
- College of Medicine, University of Malawi, Blantyre, Malawi
| | - Jane Mallewa
- Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi.,College of Medicine, University of Malawi, Blantyre, Malawi.,Department of Medicine, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | - Mulinda Nyirenda
- College of Medicine, University of Malawi, Blantyre, Malawi.,Adult Emergency and Trauma Centre, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | - Christopher P Jewell
- Centre for Health Informatics, Computing and Statistics, Lancaster University, Lancaster, United Kingdom
| | - Robert Heyderman
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - Melita Gordon
- Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi.,Institute of Infection and Global Health, Liverpool, United Kingdom
| | - David G Lalloo
- Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Rachel Tolhurst
- Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Nicholas A Feasey
- Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi.,Liverpool School of Tropical Medicine, Liverpool, United Kingdom
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Broom J, Broom A, Kirby E. The drivers of antimicrobial use across institutions, stakeholders and economic settings: a paradigm shift is required for effective optimization. J Antimicrob Chemother 2020; 74:2803-2809. [PMID: 31169902 DOI: 10.1093/jac/dkz233] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 05/02/2019] [Accepted: 05/02/2019] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Significant antimicrobial overuse persists worldwide, despite overwhelming evidence of antimicrobial resistance and knowledge that optimization of antimicrobial use will slow the development of resistance. It is critical to understand why this occurs. This study aims to consider the social influences on antimicrobial use within hospitals in Australia, via an in-depth, multisite analysis. METHODS We used a qualitative multisite design, involving 222 individual semi-structured interviews and thematic analysis. Participants (85 doctors, 79 nurses, 31 pharmacists and 27 hospital managers) were recruited from five hospitals in Australia, including four public hospitals (two metropolitan, one regional and one remote) and one private hospital. RESULTS Analysis of the interviews identified social relationships and institutional structures that may have a strong influence on antimicrobial use, which must be addressed concurrently. (i) Social relationships that exist across settings: these include the influence of personal risk, hierarchies, inter- and intraprofessional dynamics and sense of futility in making a difference long term in relation to antimicrobial resistance. (ii) Institutional structures that offer context-specific influences: these include patient population factors (including socioeconomic factors, geographical isolation and local infection patterns), proximity and resource issues. CONCLUSIONS The success of antimicrobial optimization rests on adequate awareness and incorporation of multilevel influences. Analysis of the problem has tended to emphasize individual 'behaviour improvement' in prescribing rather than incorporating the problem of overuse as inherently multidimensional and necessarily incorporating personal, interpersonal and institutional variables. A paradigm shift is urgently needed to incorporate these critical factors in antimicrobial optimization strategies.
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Affiliation(s)
- J Broom
- Sunshine Coast University Hospital, Birtinya, QLD, Australia.,University of Queensland, Brisbane, QLD, Australia
| | - A Broom
- Practical Justice Initiative, Centre for Social Research in Health, University of New South Wales, Sydney, NSW, Australia
| | - E Kirby
- Practical Justice Initiative, Centre for Social Research in Health, University of New South Wales, Sydney, NSW, Australia
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9
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Turner P, Leab P, Ly S, Sao S, Miliya T, Heffelfinger JD, Batmunkh N, Lessa FC, Walldorf JA, Hyde TB, Ork V, Hossain MS, Gould KA, Hinds J, Cooper BS, Ngoun C, Turner C, Day NPJ. Impact of 13-Valent Pneumococcal Conjugate Vaccine on Colonization and Invasive Disease in Cambodian Children. Clin Infect Dis 2020; 70:1580-1588. [PMID: 31175819 PMCID: PMC7145996 DOI: 10.1093/cid/ciz481] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 06/05/2019] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Cambodia introduced the 13-valent pneumococcal conjugate vaccine (PCV13) in January 2015 using a 3 + 0 dosing schedule and no catch-up campaign. We investigated the effects of this introduction on pneumococcal colonization and invasive disease in children aged <5 years. METHODS There were 6 colonization surveys done between January 2014 and January 2018 in children attending the outpatient department of a nongovernmental pediatric hospital in Siem Reap. Nasopharyngeal swabs were analyzed by phenotypic and genotypic methods to detect pneumococcal serotypes and antimicrobial resistance. Invasive pneumococcal disease (IPD) data for January 2012-December 2018 were retrieved from hospital databases. Pre-PCV IPD data and pre-/post-PCV colonization data were modelled to estimate vaccine effectiveness (VE). RESULTS Comparing 2014 with 2016-2018, and using adjusted prevalence ratios, VE estimates for colonization were 16.6% (95% confidence interval [CI] 10.6-21.8) for all pneumococci and 39.2% (95% CI 26.7-46.1) for vaccine serotype (VT) pneumococci. There was a 26.0% (95% CI 17.7-33.0) decrease in multidrug-resistant pneumococcal colonization. The IPD incidence was estimated to have declined by 26.4% (95% CI 14.4-35.8) by 2018, with a decrease of 36.3% (95% CI 23.8-46.9) for VT IPD and an increase of 101.4% (95% CI 62.0-145.4) for non-VT IPD. CONCLUSIONS Following PCV13 introduction into the Cambodian immunization schedule, there have been declines in VT pneumococcal colonization and disease in children aged <5 years. Modelling of dominant serotype colonization data produced plausible VE estimates.
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Affiliation(s)
- Paul Turner
- Cambodia Oxford Medical Research Unit, Angkor Hospital for Children, Siem Reap
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, United Kingdom
| | - Phana Leab
- Cambodia Oxford Medical Research Unit, Angkor Hospital for Children, Siem Reap
| | - Sokeng Ly
- Cambodia Oxford Medical Research Unit, Angkor Hospital for Children, Siem Reap
| | - Sena Sao
- Cambodia Oxford Medical Research Unit, Angkor Hospital for Children, Siem Reap
| | - Thyl Miliya
- Cambodia Oxford Medical Research Unit, Angkor Hospital for Children, Siem Reap
| | - James D Heffelfinger
- Regional Office for the Western Pacific, World Health Organization, Manila, Philippines
| | - Nyambat Batmunkh
- Regional Office for the Western Pacific, World Health Organization, Manila, Philippines
| | | | | | - Terri B Hyde
- Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Vichit Ork
- National Immunisation Program, Ministry of Health, Cambodia
| | | | - Katherine A Gould
- Institute for Infection and Immunity, St George’s, University of London, United Kingdom
- Bacterial Microarray Group at St George’s Bioscience, London Bioscience Innovation Centre, United Kingdom
| | - Jason Hinds
- Institute for Infection and Immunity, St George’s, University of London, United Kingdom
- Bacterial Microarray Group at St George’s Bioscience, London Bioscience Innovation Centre, United Kingdom
| | - Ben S Cooper
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, United Kingdom
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Chanpheaktra Ngoun
- Cambodia Oxford Medical Research Unit, Angkor Hospital for Children, Siem Reap
| | - Claudia Turner
- Cambodia Oxford Medical Research Unit, Angkor Hospital for Children, Siem Reap
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, United Kingdom
| | - Nicholas P J Day
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, United Kingdom
- Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
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10
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Peiffer-Smadja N, Dellière S, Rodriguez C, Birgand G, Lescure FX, Fourati S, Ruppé E. Machine learning in the clinical microbiology laboratory: has the time come for routine practice? Clin Microbiol Infect 2020; 26:1300-1309. [PMID: 32061795 DOI: 10.1016/j.cmi.2020.02.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/04/2020] [Accepted: 02/06/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Machine learning (ML) allows the analysis of complex and large data sets and has the potential to improve health care. The clinical microbiology laboratory, at the interface of clinical practice and diagnostics, is of special interest for the development of ML systems. AIMS This narrative review aims to explore the current use of ML In clinical microbiology. SOURCES References for this review were identified through searches of MEDLINE/PubMed, EMBASE, Google Scholar, biorXiv, arXiV, ACM Digital Library and IEEE Xplore Digital Library up to November 2019. CONTENT We found 97 ML systems aiming to assist clinical microbiologists. Overall, 82 ML systems (85%) targeted bacterial infections, 11 (11%) parasitic infections, nine (9%) viral infections and three (3%) fungal infections. Forty ML systems (41%) focused on microorganism detection, identification and quantification, 36 (37%) evaluated antimicrobial susceptibility, and 21 (22%) targeted the diagnosis, disease classification and prediction of clinical outcomes. The ML systems used very diverse data sources: 21 (22%) used genomic data of microorganisms, 19 (20%) microbiota data obtained by metagenomic sequencing, 19 (20%) analysed microscopic images, 17 (18%) spectroscopy data, eight (8%) targeted gene sequencing, six (6%) volatile organic compounds, four (4%) photographs of bacterial colonies, four (4%) transcriptome data, three (3%) protein structure, and three (3%) clinical data. Most systems used data from high-income countries (n = 71, 73%) but a significant number used data from low- and middle-income countries (n = 36, 37%). Performance measures were reported for the 97 ML systems, but no article described their use in clinical practice or reported impact on processes or clinical outcomes. IMPLICATIONS In clinical microbiology, ML has been used with various data sources and diverse practical applications. The evaluation and implementation processes represent the main gap in existing ML systems, requiring a focus on their interpretability and potential integration into real-world settings.
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Affiliation(s)
- N Peiffer-Smadja
- National Institute for Health Research Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Imperial College London, London, UK; Université de Paris, IAME, INSERM, F-75018 Paris, France
| | - S Dellière
- Université de Paris, Laboratoire de Parasitologie-Mycologie, Groupe Hospitalier Saint-Louis-Lariboisière-Fernand-Widal, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - C Rodriguez
- Department of Prevention, Diagnosis and Treatment of Infections, Henri-Mondor Hospital, APHP, Université Paris-Est Créteil, IMRB, INSERM U955, Créteil, France
| | - G Birgand
- National Institute for Health Research Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Imperial College London, London, UK
| | - F-X Lescure
- Université de Paris, IAME, INSERM, F-75018 Paris, France
| | - S Fourati
- Department of Prevention, Diagnosis and Treatment of Infections, Henri-Mondor Hospital, APHP, Université Paris-Est Créteil, IMRB, INSERM U955, Créteil, France
| | - E Ruppé
- Université de Paris, IAME, INSERM, F-75018 Paris, France.
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Nguyen PT, Tran HT, Truong HT, Nguyen VT, Graham SM, Marais BJ. Paediatric use of antibiotics in children with community acquired pneumonia: A survey from Da Nang, Vietnam. J Paediatr Child Health 2019; 55:1329-1334. [PMID: 30773763 DOI: 10.1111/jpc.14413] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 12/27/2018] [Accepted: 01/23/2019] [Indexed: 11/28/2022]
Abstract
AIM To characterise paediatricians' antibiotic-prescribing behaviour when managing community acquired pneumonia. METHODS We conducted a knowledge and attitudes survey of paediatric doctors practicing at a regional provincial hospital in central Vietnam over a 2-week period (from 12 December 2017 to 29 December 2017). RESULTS Of 79 eligible paediatric doctors, 69 (87.3%) completed the questionnaire, of whom 65 (94.2%) thought that antibiotics were overused in Vietnam. Thirty-eight doctors (55.1%) indicated that they routinely hospitalised children with pneumonia to provide intravenous antibiotics. Most doctors reported discharging children with non-severe pneumonia after 5 days (76.9%) and those with severe pneumonia after 7-10 days (88.4%); older doctors generally continued intravenous antibiotics for longer. The two most important factors driving discharge decisions were clinical assessment (95.6%) and completion of the full course of intravenous antibiotics (80.0%). Antibiotic prescription was influenced by local guidelines (62.3%), drugs used before admission (50.0%) and the opinion of senior clinicians (37.7%). Most doctors believed antibiotic stewardship was necessary (98.6%) and that over-the-counter use of antibiotics should be restricted (97.1%). CONCLUSIONS Paediatricians recognised an urgent need for more effective regulation and antibiotic stewardship in Vietnam. Routinely completing a full course of intravenous antibiotics leads to unnecessary and prolonged hospitalisation.
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Affiliation(s)
- Phuong Tk Nguyen
- Discipline of Paediatrics and Adolescent Medicine, Children's Hospital at Westmead, University of Sydney, Sydney, New South Wales, Australia.,Da Nang Hospital for Women and Children, Da Nang, Vietnam
| | - Hoang T Tran
- Da Nang Hospital for Women and Children, Da Nang, Vietnam
| | | | - Vu T Nguyen
- Da Nang Hospital for Women and Children, Da Nang, Vietnam
| | - Steve M Graham
- Centre for International Child Health, University of Melbourne, Royal Children's Hospital, Murdoch Children's Research Institute, Melbourne, Victoria, Australia
| | - Ben J Marais
- Discipline of Paediatrics and Adolescent Medicine, Children's Hospital at Westmead, University of Sydney, Sydney, New South Wales, Australia
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Mitchell KF, Safdar N, Abad CL. Evaluating carbapenem restriction practices at a private hospital in Manila, Philippines as a strategy for antimicrobial stewardship. ACTA ACUST UNITED AC 2019; 77:31. [PMID: 31312447 PMCID: PMC6610803 DOI: 10.1186/s13690-019-0358-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 06/13/2019] [Indexed: 11/10/2022]
Abstract
Background Hospital antimicrobial stewardship programs are especially critical in countries such as the Philippines, where antibiotic resistant infections are highly prevalent. At the study institution in Manila, Philippines, a Prior Approval for Restricted Antimicrobials (PARA) is required for non-infectious disease specialists to prescribe certain antimicrobials, including carbapenems. PARA request forms include specification of empiric or definitive therapy based on diagnostic tests. Recommended duration of therapy is typically 3 days for empiric use and 7 days for definitive, with possible extension upon specialist approval. Methods The study took place at an 800-bed tertiary hospital. We performed a retrospective review of patient medical records and laboratory reports dating from January 1 to December 31, 2016. Information related to patient demographics, carbapenem prescription, laboratory diagnosis, and therapy were compiled. Carbapenem prescriptions were classified as 'adherent' or 'non-adherent' according to clinical guidelines related to infection diagnosis, treatment duration, and de-escalation. Results Of the 185 patients on carbapenem therapy, Prescriptions of carbapenems were either definitive (n = 56), empiric (n = 127), or prophylactic (n = 2) as defined by the ordering provider. 69 out of 185 (37%) prescriptions were deemed non-adherent to guidelines, despite receiving approvals for their respective requests. Of these, 72% were non-adherent due to failure to de-escalate the carbapenem and 28% were non-adherent due to an incomplete course of therapy. Conclusion Despite initial PARA approval for carbapenem therapy, 37% of prescriptions were non-guideline-adherent, highlighting the ongoing challenges in implementing this type of stewardship strategy. In order to increase the effectiveness of PARA, additional approaches may be warranted, including the application of strict policies which reinforce follow-up of available culture results, justification of therapy extension, or referral to an infectious disease specialist.
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Affiliation(s)
- Kaitlin F Mitchell
- 1Division of Infectious Diseases, Department of Medicine, University of Wisconsin-Madison, Madison, WI USA.,5Present Address: Laboratory and Genomic Medicine, Department of Pathology and Immunology, Washington University School of Medicine in St. Louis, St. Louis, MO USA
| | - Nasia Safdar
- 1Division of Infectious Diseases, Department of Medicine, University of Wisconsin-Madison, Madison, WI USA.,2William S. Middleton Memorial Veterans Hospital, Madison, WI USA.,3Infection Control Department, University of Wisconsin-Madison, Madison, WI USA
| | - Cybele L Abad
- Department of Medicine, Section of Infectious Diseases, The Medical City Hospital, Ortigas Ave, Pasig City, Philippines
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Fox-Lewis A, Takata J, Miliya T, Lubell Y, Soeng S, Sar P, Rith K, McKellar G, Wuthiekanun V, McGonagle E, Stoesser N, Moore CE, Parry CM, Turner C, Day NPJ, Cooper BS, Turner P. Antimicrobial Resistance in Invasive Bacterial Infections in Hospitalized Children, Cambodia, 2007-2016. Emerg Infect Dis 2019; 24:841-851. [PMID: 29664370 PMCID: PMC5938766 DOI: 10.3201/eid2405.171830] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
To determine trends, mortality rates, and costs of antimicrobial resistance in invasive bacterial infections in hospitalized children, we analyzed data from Angkor Hospital for Children, Siem Reap, Cambodia, for 2007-2016. A total of 39,050 cultures yielded 1,341 target pathogens. Resistance rates were high; 82% each of Escherichia coli and Klebsiella pneumoniae isolates were multidrug resistant. Hospital-acquired isolates were more often resistant than community-acquired isolates; resistance trends over time were heterogeneous. K. pneumoniae isolates from neonates were more likely than those from nonneonates to be resistant to ampicillin-gentamicin and third-generation cephalosporins. In patients with community-acquired gram-negative bacteremia, third-generation cephalosporin resistance was associated with increased mortality rates, increased intensive care unit admissions, and 2.26-fold increased healthcare costs among survivors. High antimicrobial resistance in this setting is a threat to human life and the economy. In similar low-resource settings, our methods could be reproduced as a robust surveillance model for antimicrobial resistance.
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