101
|
Bruyndonckx R, Aerts M, Hens N. Simulation-based evaluation of the performance of the F test in a linear multilevel model setting with sparseness at the level of the primary unit. Biom J 2016; 58:1054-70. [PMID: 27218667 DOI: 10.1002/bimj.201400195] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 11/17/2015] [Accepted: 11/21/2015] [Indexed: 10/21/2022]
Abstract
In a linear multilevel model, significance of all fixed effects can be determined using F tests under maximum likelihood (ML) or restricted maximum likelihood (REML). In this paper, we demonstrate that in the presence of primary unit sparseness, the performance of the F test under both REML and ML is rather poor. Using simulations based on the structure of a data example on ceftriaxone consumption in hospitalized children, we studied variability, type I error rate and power in scenarios with a varying number of secondary units within the primary units. In general, the variability in the estimates for the effect of the primary unit decreased as the number of secondary units increased. In the presence of singletons (i.e., only one secondary unit within a primary unit), REML consistently outperformed ML, although even under REML the performance of the F test was found inadequate. When modeling the primary unit as a random effect, the power was lower while the type I error rate was unstable. The options of dropping, regrouping, or splitting the singletons could solve either the problem of a high type I error rate or a low power, while worsening the other. The permutation test appeared to be a valid alternative as it outperformed the F test, especially under REML. We conclude that in the presence of singletons, one should be careful in using the F test to determine the significance of the fixed effects, and propose the permutation test (under REML) as an alternative.
Collapse
Affiliation(s)
- Robin Bruyndonckx
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics (I-BIOSTAT), Hasselt University, Martelarenlaan 42, Hasselt, Belgium.
| | - Marc Aerts
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics (I-BIOSTAT), Hasselt University, Martelarenlaan 42, Hasselt, Belgium
| | - Niel Hens
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics (I-BIOSTAT), Hasselt University, Martelarenlaan 42, Hasselt, Belgium.,Centre for Health Economic Research and Modelling of Infectious Diseases (CHERMID), Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Universiteitsplein 1, Wilrijk, Belgium
| |
Collapse
|
102
|
Hahn A, Fukuda T, Hahn D, Mizuno T, Frenck RW, Vinks AA. Pharmacokinetics and pharmacogenomics of β-lactam-induced neutropenia. Pharmacogenomics 2016; 17:547-59. [PMID: 27045542 DOI: 10.2217/pgs-2015-0008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
AIM Determine if individuals with β-lactam induced neutropenia have polymorphisms that impair function of MRP4 or OAT1/OAT3. METHODS Subjects with β-lactam induced neutropenia were compared to controls for the presence of MRP4 and OAT1/OAT3 polymorphisms, estimated plasma trough concentrations and area under the curve. RESULTS Subjects with a homozygous polymorphism at MRP4 3348 A to G were 5.3 times more likely to develop neutropenia (p = 0.171). No statistical differences were noted in pharmacokinetic parameters. Contingency analysis of children greater than 5 years of age showed neutropenia in subjects who were homozygous wild type at MRP4 3348 A to G was significantly associated with standard or high dosing (p = 0.03). CONCLUSION MRP4 3348 A to G should be further studied for potential contribution to the development of β-lactam induced neutropenia.
Collapse
Affiliation(s)
- Andrea Hahn
- Division of Infectious Disease, Children's National Medical Center, Washington, DC 200102, USA.,Department of Pediatrics, George Washington University School of Medicine, Washington, DC 200523, USA
| | - Tsuyoshi Fukuda
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 452294, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 452215, USA
| | - David Hahn
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 452294, USA
| | - Tomoyuki Mizuno
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 452294, USA
| | - Robert W Frenck
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 452215, USA.,Division of Infectious Disease, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Alexander A Vinks
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 452294, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 452215, USA
| |
Collapse
|
103
|
Dar OA, Hasan R, Schlundt J, Harbarth S, Caleo G, Dar FK, Littmann J, Rweyemamu M, Buckley EJ, Shahid M, Kock R, Li HL, Giha H, Khan M, So AD, Bindayna KM, Kessel A, Pedersen HB, Permanand G, Zumla A, Røttingen JA, Heymann DL. Exploring the evidence base for national and regional policy interventions to combat resistance. Lancet 2016; 387:285-95. [PMID: 26603921 DOI: 10.1016/s0140-6736(15)00520-6] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The effectiveness of existing policies to control antimicrobial resistance is not yet fully understood. A strengthened evidence base is needed to inform effective policy interventions across countries with different income levels and the human health and animal sectors. We examine three policy domains-responsible use, surveillance, and infection prevention and control-and consider which will be the most effective at national and regional levels. Many complexities exist in the implementation of such policies across sectors and in varying political and regulatory environments. Therefore, we make recommendations for policy action, calling for comprehensive policy assessments, using standardised frameworks, of cost-effectiveness and generalisability. Such assessments are especially important in low-income and middle-income countries, and in the animal and environmental sectors. We also advocate a One Health approach that will enable the development of sensitive policies, accommodating the needs of each sector involved, and addressing concerns of specific countries and regions.
Collapse
Affiliation(s)
- Osman A Dar
- Public Health England, London, UK; Chatham House Centre on Global Health Security, London, UK.
| | | | - Jørgen Schlundt
- School of Chemical & Biomedical Engineering, Nanyang Technological University, Singapore
| | - Stephan Harbarth
- University of Geneva Hospitals and Faculty of Medicine, Geneva, Switzerland
| | | | | | | | - Mark Rweyemamu
- Southern African Centre for Infectious Disease Surveillance, Sokoine University of Agriculture, Morogoro, Tanzania
| | | | - Mohammed Shahid
- Jawaharlal Nehru Medical College and Hospital, Aligarh Muslim University, Aligarh, India
| | | | - Henry Lishi Li
- London School of Hygiene & Tropical Medicine, London, UK
| | | | - Mishal Khan
- London School of Hygiene & Tropical Medicine, London, UK; Research Alliance for Advocacy and Development, Karachi, Pakistan
| | - Anthony D So
- Sanford School of Public Policy and Duke Global Health Institute, Duke University, Durham, NC, USA
| | | | - Anthony Kessel
- London School of Hygiene & Tropical Medicine, London, UK
| | | | | | - Alimuddin Zumla
- University College London, London, UK; National Institute for Health Research Biomedical Research Centre, University College Hospitals NHS Trust, London, UK
| | - John-Arne Røttingen
- Norwegian Institute of Public Health, Oslo, Norway; Department of Global Health and Population, Harvard T H Chan School of Public Health, Harvard University, Boston, MA, USA; Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - David L Heymann
- Public Health England, London, UK; Chatham House Centre on Global Health Security, London, UK; London School of Hygiene & Tropical Medicine, London, UK
| |
Collapse
|
104
|
Versporten A, Bielicki J, Drapier N, Sharland M, Goossens H. The Worldwide Antibiotic Resistance and Prescribing in European Children (ARPEC) point prevalence survey: developing hospital-quality indicators of antibiotic prescribing for children. J Antimicrob Chemother 2016; 71:1106-17. [DOI: 10.1093/jac/dkv418] [Citation(s) in RCA: 186] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 11/05/2015] [Indexed: 01/19/2023] Open
|
105
|
Spyridis N, Syridou G, Goossens H, Versporten A, Kopsidas J, Kourlaba G, Bielicki J, Drapier N, Zaoutis T, Tsolia M, Sharland M. Variation in paediatric hospital antibiotic guidelines in Europe. Arch Dis Child 2016; 101:72-6. [PMID: 26416900 DOI: 10.1136/archdischild-2015-308255] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 09/08/2015] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To assess the availability and source of guidelines for common infections in European paediatric hospitals and determine their content and characteristics. DESIGN Participating hospitals completed an online questionnaire on the availability and characteristics of antibiotic prescribing guidelines and on empirical antibiotic treatment including duration of therapy for 5 common infection syndromes: respiratory tract, urinary tract, skin and soft tissue, osteoarticular and sepsis in neonates and children. RESULTS 84 hospitals from 19 European countries participated in the survey of which 74 confirmed the existence of guidelines. Complete guidelines (existing guidelines for all requested infection syndromes) were reported by 20% of hospitals and the majority (71%) used a range of different sources. Guidelines most commonly available were those for urinary tract infection (UTI) (74%), neonatal sepsis (71%) and sepsis in children (65%). Penicillin and amoxicillin were the antibiotics most commonly recommended for respiratory tract infections (RTIs) (up to 76%), cephalosporin for UTI (up to 50%) and for skin and soft tissue infection (SSTI) and bone infection (20% and 30%, respectively). Antistaphylococcal penicillins were recommended for SSTIs and bone infections in 43% and 36%, respectively. Recommendations for neonatal sepsis included 20 different antibiotic combinations. Duration of therapy guidelines was mostly available for RTI and UTI (82%). A third of hospitals with guidelines for sepsis provided recommendations for length of therapy. CONCLUSIONS Comprehensive antibiotic guideline recommendations are generally lacking from European paediatric hospitals. We documented multiple antibiotics and combinations for most infections. Considerable improvement in the quality of guidelines and their evidence base is required, linking empirical therapy to resistance rates.
Collapse
Affiliation(s)
- N Spyridis
- Department of Paediatric Infectious Diseases, Aglaia Kyriakou Children's Hospital, University of Athens, Athens, Greece
| | - G Syridou
- Department of Paediatric Infectious Diseases, Aglaia Kyriakou Children's Hospital, University of Athens, Athens, Greece
| | - H Goossens
- Laboratory of Medical Microbiology, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Antwerp, Belgium
| | - A Versporten
- Laboratory of Medical Microbiology, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Antwerp, Belgium
| | - J Kopsidas
- Stavros Niarchos Foundation-Collaborative Center for Clinical Epidemiology and Outcomes Research and Division of Infectious Diseases (CLEO), University of Athens School of Medicine, Athens, Greece
| | - G Kourlaba
- Stavros Niarchos Foundation-Collaborative Center for Clinical Epidemiology and Outcomes Research and Division of Infectious Diseases (CLEO), University of Athens School of Medicine, Athens, Greece
| | - J Bielicki
- Paediatric Infectious Diseases Research Group, St George's University of London, London, UK
| | - N Drapier
- Laboratory of Medical Microbiology, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Antwerp, Belgium
| | - T Zaoutis
- Stavros Niarchos Foundation-Collaborative Center for Clinical Epidemiology and Outcomes Research and Division of Infectious Diseases (CLEO), University of Athens School of Medicine, Athens, Greece The Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - M Tsolia
- Department of Paediatric Infectious Diseases, Aglaia Kyriakou Children's Hospital, University of Athens, Athens, Greece
| | - M Sharland
- Paediatric Infectious Diseases Research Group, St George's University of London, London, UK
| | | |
Collapse
|
106
|
Bielicki JA, Sharland M, Johnson AP, Henderson KL, Cromwell DA. Selecting appropriate empirical antibiotic regimens for paediatric bloodstream infections: application of a Bayesian decision model to local and pooled antimicrobial resistance surveillance data. J Antimicrob Chemother 2015; 71:794-802. [PMID: 26626717 DOI: 10.1093/jac/dkv397] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 10/24/2015] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVES The objective of this study was to evaluate the ability of weighted-incidence syndromic combination antibiograms (WISCAs) to inform the selection of empirical antibiotic regimens for suspected paediatric bloodstream infections (BSIs) by comparing WISCAs derived using data from single hospitals and from a multicentre surveillance dataset. METHODS WISCAs were developed by estimating the coverage of five empirical antibiotic regimens for childhood BSI using a Bayesian decision tree. The study used microbiological data on ∼2000 bloodstream isolates collected over 2 years from 19 European hospitals. We evaluated the ability of a WISCA to show differences in regimen coverage at two exemplar hospitals. For each, a WISCA was first calculated using only their local data; a second WISCA was calculated using pooled data from all 19 hospitals. RESULTS The estimated coverage of the five regimens was 72%-86% for Hospital 1 and 79%-94% for Hospital 2, based on their own data. In both cases, the best regimens could not be definitively identified because the differences in coverage were not statistically significant. For Hospital 1, coverage estimates derived using pooled data gave sufficient precision to reveal clinically important differences among regimens, including high coverage provided by a narrow-spectrum antibiotic combination. For Hospital 2, the hospital and pooled data showed signs of heterogeneity and the use of pooled data was judged not to be appropriate. CONCLUSIONS The Bayesian WISCA provides a useful approach to pooling information from different sources to guide empirical therapy and could increase confidence in the selection of narrow-spectrum regimens.
Collapse
Affiliation(s)
- Julia A Bielicki
- Paediatric Infectious Diseases Research Group, Institute of Infection and Immunity, St George's University of London, Cranmer Terrace, London SW17 0RE, UK Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - Mike Sharland
- Paediatric Infectious Diseases Research Group, Institute of Infection and Immunity, St George's University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Alan P Johnson
- Department of Healthcare-Associated Infections and Antimicrobial Resistance, Centre for Infectious Disease Surveillance and Control, National Infection Service, Public Health England, London NW9 5EQ, UK
| | - Katherine L Henderson
- Department of Healthcare-Associated Infections and Antimicrobial Resistance, Centre for Infectious Disease Surveillance and Control, National Infection Service, Public Health England, London NW9 5EQ, UK
| | - David A Cromwell
- Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | | |
Collapse
|
107
|
Alfandari S, Robert J, Péan Y, Rabaud C, Bedos JP, Varon E, Lepape A, Bru JP, Gauzit R. Antibiotic use and good practice in 314 French hospitals: The 2010 SPA2 prevalence study. Med Mal Infect 2015; 45:475-80. [PMID: 26612602 DOI: 10.1016/j.medmal.2015.10.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 10/01/2015] [Indexed: 11/15/2022]
Abstract
OBJECTIVES We aimed to assess antibiotic prescriptions to identify potential targets for improvement. METHODS We conducted a point prevalence survey (November 2010) of antibiotic use in 314 voluntary hospitals recruited by the French Infectious Diseases Society (SPILF) and the National Observatory for Epidemiology of Bacterial Resistance to Antimicrobials (ONERBA). Data were entered online, immediately analyzed and exported. RESULTS The prevalence of antibiotic use was 19.5% (9059/46,446patients). A higher prevalence was observed in the infectious disease (58.4%), hematology (58%), and intensive care (48.7%) units. The three most frequently used antibiotic classes were aminopenicillins (23.8%), fluoroquinolones (17.9%), and 3rd-generation cephalosporins (16.7%). A monotherapy was prescribed to 64% of patients. The reasons for the antibiotic prescription were written in the medical records of 74% of patients and 62% were consistent with the local guidelines. CONCLUSION Our results are similar to that of other studies. Various local targets for improvement have been identified to help hospitals define a better antibiotic stewardship.
Collapse
Affiliation(s)
- S Alfandari
- Service de réanimation et des maladies infectieuses, centre hospitalier Dron, 59208 Tourcoing, France.
| | - J Robert
- Bactériologie et hygiène, hôpitaux universitaires de la Pitié-Salpêtrière - Charles-Foix, AP-HP, 75013 Paris, France
| | - Y Péan
- Observatoire national de l'épidémiologie de la résistance bactérienne aux antibiotiques (ONERBA), 75006 Paris, France
| | - C Rabaud
- Service des maladies infectieuses, CHU, 54511 Nancy, France
| | - J P Bedos
- Service de réanimation, centre hospitalier Henri-Mignot, 78157 Le Chesnay, France
| | - E Varon
- Laboratoire de bactériologie, HEGP, 75908 Paris, France
| | - A Lepape
- Service de réanimation, hôpital Sud, 69495 Lyon, France
| | - J P Bru
- Service des maladies infectieuses, centre hospitalier de la région d'Annecy, 74374 Annecy, France
| | - R Gauzit
- Service d'anesthésie-réanimation chirurgicale, CHU Cochin, AP-HP, 75679 Paris, France
| | | |
Collapse
|
108
|
Sharland M, Saroey P, Berezin EN. The global threat of antimicrobial resistance ‐ The need for standardized surveillance tools to define burden and develop interventions. JORNAL DE PEDIATRIA (VERSÃO EM PORTUGUÊS) 2015. [DOI: 10.1016/j.jpedp.2015.07.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
109
|
Sharland M, Saroey P, Berezin EN. The global threat of antimicrobial resistance--The need for standardized surveillance tools to define burden and develop interventions. J Pediatr (Rio J) 2015; 91:410-2. [PMID: 26113428 DOI: 10.1016/j.jped.2015.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- Mike Sharland
- Paediatric Infectious Diseases Research Group, St George's University of London, London, United Kingdom.
| | - Praveen Saroey
- Paediatric Infectious Diseases Research Group, St George's University of London, London, United Kingdom
| | | |
Collapse
|
110
|
Australia-wide Point Prevalence Survey of Antimicrobial Prescribing in Neonatal Units: How Much and How Good? Pediatr Infect Dis J 2015; 34:e185-90. [PMID: 25961896 DOI: 10.1097/inf.0000000000000719] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND There is increasing recognition of the threat to neonatal patients from antibiotic resistance. There are limited data on antimicrobial prescribing practices for hospitalized neonates. We aimed to describe antimicrobial use in hospitalized Australian neonatal patients, and to determine its appropriateness. METHODS Multicentre single-day hospital-wide point prevalence survey in 2012, in conjunction with the Antimicrobial Resistance and Prescribing in European Children study. The appropriateness of antimicrobial prescriptions was also assessed. All patients admitted at 8 am on the survey day, in 6 neonatal units in tertiary children's hospitals across 5 states, were included in an analysis of the quantity and quality of all antimicrobial prescriptions. RESULTS The point prevalence survey included 6 neonatal units and 236 patients. Of 109 patients (46%) receiving at least 1 antimicrobial, 66 (61%) were being treated for infection, with sepsis the most common indication. There were 216 antimicrobial prescriptions, 134 (62%) for treatment of infection and 82 (38%) for prophylaxis, mostly oral nystatin. Only 15 prescriptions were for targeted as opposed to empirical treatment. Penicillin and gentamicin were the most commonly prescribed antibiotics, with vancomycin third most common. Half of all treated patients were receiving combination antimicrobial therapy. There was marked variation in vancomycin and gentamicin dosing. Overall, few prescriptions (4%) were deemed inappropriate. CONCLUSION This is the first Australia-wide point prevalence survey of neonatal antimicrobial prescribing in tertiary children's hospitals. The findings highlight positive practices and potential targets for quality improvement.
Collapse
|
111
|
Bryant PA. Antimicrobial stewardship resources and activities for children in tertiary hospitals in Australasia: a comprehensive survey. Med J Aust 2015; 202:134-8. [PMID: 25669475 DOI: 10.5694/mja13.00143] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Accepted: 09/09/2014] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To identify current antimicrobial stewardship (AMS) resources and activities for children in hospitals throughout Australasia, to identify gaps in services. DESIGN, SETTING AND PARTICIPANTS Tertiary paediatric hospitals (children's hospitals and combined adult and paediatric hospitals that offer tertiary paediatric care) in every state and territory of Australia and the North and South Islands of New Zealand were surveyed in June 2013 regarding AMS resources and activities. MAIN OUTCOME MEASURE A description of AMS resources and activities for children in tertiary hospitals. RESULTS We surveyed 14 hospitals, with paediatric bed numbers ranging from 40 to 300. Seven had a dedicated paediatric AMS team or AMS team with a paediatric representative and 11 had an AMS pharmacist position, although only four had committed ongoing funding for a permanent paediatric AMS pharmacist and only two had committed funding for a paediatric infectious diseases physician for AMS. All hospitals had empirical antimicrobial prescribing guidelines, and all 10 hospitals with haematology and oncology services had febrile neutropenia guidelines. However, most did not have guidelines for antifungal prophylaxis, surgical prophylaxis, neonatology or paediatric intensive care. All hospitals had restricted drugs but only four had electronic approval systems. Auditing methods differed widely but were mostly ad hoc, with results fed back in an untargeted way. There was a paucity of AMS education: no hospitals provided education for senior medical staff, and four had no education for any staff. The commonest perceived barriers to successful AMS were lack of education (11 hospitals) and lack of dedicated pharmacy (eight) and medical (seven) staff. CONCLUSIONS Australasian paediatric hospitals have implemented some AMS activities, but most lack resources. There was consensus among the staff who completed our survey that barriers to successful AMS include lack of education and lack of personnel.
Collapse
|
112
|
Raastad R, Tvete IF, Abrahamsen TG, Berild D, Leegaard TM, Walberg M, Müller F. A worrying trend in weight-adjusted paediatric antibiotic use in a Norwegian tertiary care hospital. Acta Paediatr 2015; 104:687-92. [PMID: 25753620 DOI: 10.1111/apa.12994] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 12/29/2014] [Accepted: 03/05/2015] [Indexed: 11/28/2022]
Abstract
AIM The World Health Organization recommends the defined daily dose (DDD) as the standard unit of measurement for antibiotic use, but this is not applicable in children. We aimed to assess paediatric antibiotic use in a Norwegian tertiary care hospital using a novel weight-adjusted method. METHODS We obtained antibiotic purchase data from the hospital pharmacy and administrative data for all admissions from 2002 to 2009 to the paediatric wards at Oslo University Hospital, Rikshospitalet. Recommended daily doses per 100 kg days (RDDs/kg days) were calculated based on national guidelines for paediatric antibiotic use, length of stay and estimated weight for sex and age using national growth references. RESULTS Total antibiotic use increased significantly from 51.8 to 65.5 RDDs/100 kg days. We found statistically significant annual increases in the consumption of carbapenems (18.0%), third-generation cephalosporins (6.0%) and imidazole derivatives (6.6%) and a considerable difference between total antibiotic use measured in RDDs/100 kg days and DDDs/100 bed days for neonates. CONCLUSION Weight-adjusted antibiotic use provided a more meaningful description of the quantities of antibiotics consumed than DDDs/100 bed days, particularly for neonates. Total antibiotic use, use of meropenem, third-generation cephalosporins and imidazole derivatives increased significantly despite low prevalence of antibiotic-resistant pathogens.
Collapse
Affiliation(s)
- Ragnhild Raastad
- Department of Infectious Diseases; Oslo University Hospital; Oslo Norway
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
| | | | - Tore G. Abrahamsen
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
- Department of Pediatrics; Oslo University Hospital; Oslo Norway
| | - Dag Berild
- Department of Infectious Diseases; Oslo University Hospital; Oslo Norway
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
| | - Truls M. Leegaard
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
- Department of Microbiology and Infection Control; Akershus University Hospital; Lørenskog Norway
| | - Mette Walberg
- Microbiology Section; Laboratory Centre; Vestre Viken Hospital Trust; Rud Norway
| | - Fredrik Müller
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
- Department of Microbiology; Oslo University Hospital; Oslo Norway
| |
Collapse
|
113
|
Antibiotic Resistance Prevalence in Routine Bloodstream Isolates from Children's Hospitals Varies Substantially from Adult Surveillance Data in Europe. Pediatr Infect Dis J 2015; 34:734-41. [PMID: 25607829 DOI: 10.1097/inf.0000000000000652] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Surveillance of antimicrobial resistance (AMR) is central for defining appropriate strategies to deal with changing AMR levels. It is unclear whether childhood AMR patterns differ from those detected in isolates from adult patients. METHODS Resistance percentages of nonduplicate Staphylococcus aureus, Streptococcus pneumoniae, Enterococcus faecalis, Enterococcus faecium, Escherichia coli, Klebsiella pneumoniae and Pseudomonas aeruginosa bloodstream isolates from children less than 18 years of age reported to the Antibiotic Resistance and Prescribing in European Children (ARPEC) project were compared with all-age resistance percentages reported by the European Antimicrobial Resistance Surveillance Network (EARS-Net) for the same pathogen-antibiotic class combinations, period and countries. In addition, resistance percentages were compared between ARPEC isolates from children less than 1 year of age and children greater than or equal to1 year of age. RESULTS Resistance percentages for many important pathogen-antibiotic class combinations were different for ARPEC isolates compared with EARS-Net. E. coli and K. pneumoniae fluoroquinolone resistance percentages were substantially lower in ARPEC (13.4% and 17.9%) than in EARS-Net (23.0% and 30.7%), whereas the reverse was true for all pathogen-antibiotic class combinations in P. aeruginosa (for example, 27.3% aminoglycoside resistance in ARPEC, 19.3% in EARS-Net, 32.8% carbapenem resistance in ARPEC and 20.5% in EARS-Net), and for S. pneumoniae and macrolide resistance. For many Gram-negative pathogen-antibiotic class combinations, isolates from children greater than or equal to 1 year of age showed higher resistance percentages than isolates from children less than 1 year of age. CONCLUSIONS Age-stratified presentation of resistance percentage estimates by surveillance programs will allow identification of important variations in resistance patterns between different patient groups for targeted intervention.
Collapse
|
114
|
Alberici I, Bayazit AK, Drozdz D, Emre S, Fischbach M, Harambat J, Jankauskiene A, Litwin M, Mir S, Morello W, Peco-Antic A, Sallay P, Sever L, Simonetti GD, Szczesniak P, Teixeira A, Vidal E, Wuehl E, Mehls O, Weber LT, Schaefer F, Montini G. Pathogens causing urinary tract infections in infants: a European overview by the ESCAPE study group. Eur J Pediatr 2015; 174:783-90. [PMID: 25428232 DOI: 10.1007/s00431-014-2459-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 10/09/2014] [Accepted: 11/12/2014] [Indexed: 11/28/2022]
Abstract
UNLABELLED Knowledge of the distribution spectrum of causative organisms and their resistance patterns has become a core requirement for the rational and effective management of urinary tract infections. In the context of a prospective trial on the use of antibiotic prophylaxis in infants with underling kidney malformations, we conducted an online survey among paediatric nephrologists on positive urine cultures (July 2010-June 2012) from both hospitalized and non-hospitalized infants under 24 months of age. We collected 4745 urine cultures (UCs) at 18 units in 10 European countries. Escherichia coli was the most frequent bacterium isolated from UCs; however, in 10/16 hospitals and in 6/15 community settings, E. coli was isolated in less than 50% of the total positive UCs. Other bacterial strains were Klebsiella, Enterococcus, Proteus and Pseudomonas not only from hospital settings. E. coli showed a high resistance to amoxicillin and trimethoprim and variable to cephalosporin. Nitrofurantoin had a good rate of efficacy, with 11/16 hospitals and 11/14 community settings reporting a resistance lower than 5%. CONCLUSION E. coli is the most common organism causing UTIs in infants; however, other bacterial strains are frequently isolated. As a result, antibiotic prophylaxis should be more elastic and adaptable over time in order to guarantee maximum efficacy.
Collapse
Affiliation(s)
- Irene Alberici
- Nephrology and Dialysis Unit, Department of Pediatrics, Azienda Ospedaliera Universitaria Sant'Orsola-Malpighi Bologna, Via Massarenti 11, 40138, Bologna, Italy,
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
115
|
Osowicki J, Gwee A, Noronha J, Palasanthiran P, McMullan B, Britton PN, Isaacs D, Lai T, Nourse C, Avent M, Moriarty P, Clark J, Francis JR, Blyth CC, Cooper CM, Bryant PA. Australia-wide point prevalence survey of the use and appropriateness of antimicrobial prescribing for children in hospital. Med J Aust 2015; 201:657-62. [PMID: 25495311 DOI: 10.5694/mja13.00154] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 05/23/2014] [Indexed: 11/17/2022]
Abstract
OBJECTIVES To describe antimicrobial use in hospitalised Australian children and to analyse the appropriateness of this antimicrobial use. DESIGN Multicentre single-day hospital-wide point prevalence survey, conducted in conjunction with the Antimicrobial Resistance and Prescribing in European Children study. SETTING Eight children's hospitals across five Australian states, surveyed during late spring and early summer 2012. PATIENTS Children and adolescents who were inpatients at 8 am on the day of the survey. MAIN OUTCOME MEASURES Quantity and quality of antimicrobial prescribing. RESULTS Of 1373 patients, 631 (46%) were prescribed at least one antimicrobial agent, 198 (31%) of whom were < 1 year old. The highest antimicrobial prescribing rates were in haematology and oncology wards (76% [95/125]) and paediatric intensive care units (55% [44/80]). Of 1174 antimicrobial prescriptions, 550 (47%) were for community-acquired infections, 175 (15%) were for hospital-acquired infections and 437 (37%) were for prophylaxis. Empirical treatment accounted for 72% of antimicrobial prescriptions for community-acquired infections and 58% for hospital-acquired infections (395 and 102 prescriptions, respectively). A total of 915 prescriptions (78%) were for antibacterials; antifungals and antivirals were predominantly used for prophylaxis. The most commonly prescribed antibacterials were narrow-spectrum penicillins (18% [164 prescriptions]), β-lactam-β-lactamase inhibitor combinations (15% [136]) and aminoglycosides (14% [128]). Overall, 957 prescriptions (82%) were deemed appropriate, but this varied between hospitals (range, 66% [74/112]) to 95% [165/174]) and specialties (range, 65% [122/187] to 94% [204/217]). Among surgical patients, 65 of 187 antimicrobial prescriptions (35%) were deemed inappropriate, and a common reason for this was excessive prophylaxis duration. CONCLUSION A point prevalence survey is a useful cross-sectional method for quantifying antimicrobial use in paediatric populations. The value is significantly augmented by adding assessment of prescribing quality.
Collapse
Affiliation(s)
- Joshua Osowicki
- Infectious Diseases Unit, Royal Children's Hospital Melbourne, Melbourne, VIC, Australia.
| | - Amanda Gwee
- Infectious Diseases Unit, Royal Children's Hospital Melbourne, Melbourne, VIC, Australia
| | - Jesuina Noronha
- Department of Paediatric Infectious Diseases, Monash Children's Hospital, Melbourne, VIC, Australia
| | - Pamela Palasanthiran
- Department of Immunology and Infectious Diseases, Sydney Children's Hospital, Sydney, NSW, Australia
| | - Brendan McMullan
- Department of Immunology and Infectious Diseases, Sydney Children's Hospital, Sydney, NSW, Australia
| | - Philip N Britton
- Infectious Diseases Department and Microbiology Department, Children's Hospital at Westmead, Sydney, NSW, Australia
| | - David Isaacs
- Infectious Diseases Department and Microbiology Department, Children's Hospital at Westmead, Sydney, NSW, Australia
| | - Tony Lai
- Pharmacy Department, Children's Hospital at Westmead, Sydney, NSW, Australia
| | - Clare Nourse
- Infection Management and Prevention Service, Lady Cilento Children's Hospital, Brisbane, QLD, Australia
| | - Minyon Avent
- Mater Pharmacy, Mater Health Services, Brisbane, QLD, Australia
| | - Paul Moriarty
- Infection Management and Prevention Service, Lady Cilento Children's Hospital, Brisbane, QLD, Australia
| | - Julia Clark
- Infection Management and Prevention Service, Lady Cilento Children's Hospital, Brisbane, QLD, Australia
| | - Joshua R Francis
- Department of General Paediatrics, Princess Margaret Hospital for Children, Perth, WA, Australia
| | - Christopher C Blyth
- Department of General Paediatrics, Princess Margaret Hospital for Children, Perth, WA, Australia
| | - Celia M Cooper
- SA Pathology, Women's and Children's Hospital, Adelaide, SA, Australia
| | - Penelope A Bryant
- Infectious Diseases Unit, Royal Children's Hospital Melbourne, Melbourne, VIC, Australia
| |
Collapse
|
116
|
Metsvaht T, Nellis G, Varendi H, Nunn AJ, Graham S, Rieutord A, Storme T, McElnay J, Mulla H, Turner MA, Lutsar I. High variability in the dosing of commonly used antibiotics revealed by a Europe-wide point prevalence study: implications for research and dissemination. BMC Pediatr 2015; 15:41. [PMID: 25880733 PMCID: PMC4407781 DOI: 10.1186/s12887-015-0359-y] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 03/30/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Antibiotic dosing in neonates varies between countries and centres, suggesting suboptimal exposures for some neonates. We aimed to describe variations and factors influencing the variability in the dosing of frequently used antibiotics in European NICUs to help define strategies for improvement. METHODS A sub-analysis of the European Study of Neonatal Exposure to Excipients point prevalence study was undertaken. Demographic data of neonates receiving any antibiotic on the study day within one of three two-week periods from January to June 2012, the dose, dosing interval and route of administration of each prescription were recorded. The British National Formulary for Children (BNFC) and Neofax were used as reference sources. Risk factors for deviations exceeding ±25% of the relevant BNFC dosage recommendation were identified by multivariate logistic regression analysis. RESULTS In 89 NICUs from 21 countries, 586 antibiotic prescriptions for 342 infants were reported. The twelve most frequently used antibiotics - gentamicin, penicillin G, ampicillin, vancomycin, amikacin, cefotaxime, ceftazidime, meropenem, amoxicillin, metronidazole, teicoplanin and flucloxacillin - covered 92% of systemic prescriptions. Glycopeptide class, GA <32 weeks, 5(th) minute Apgar score <5 and geographical region were associated with deviation from the BNFC dosage recommendation. While the doses of penicillins exceeded recommendations, antibiotics with safety concerns followed (gentamicin) or were dosed below (vancomycin) recommendations. CONCLUSIONS The current lack of compliance with existing dosing recommendations for neonates needs to be overcome through the conduct of well-designed clinical trials with a limited number of antibiotics to define pharmacokinetics/pharmacodynamics, efficacy and safety in this population and by efficient dissemination of the results.
Collapse
Affiliation(s)
- Tuuli Metsvaht
- Institute of Microbiology, Tartu University, Tartu, Estonia. .,Clinic of Anaesthesiology and Intensive Care, Tartu University Hospital, Tartu, Estonia.
| | - Georgi Nellis
- Institute of Microbiology, Tartu University, Tartu, Estonia. .,Children's Clinic, Tartu University Hospital, Tartu, Estonia.
| | - Heili Varendi
- Children's Clinic, Tartu University Hospital, Tartu, Estonia.
| | - Anthony J Nunn
- Alder Hey Children's NHS Foundation Trust, Liverpool, UK.
| | - Susan Graham
- Research and Development, Liverpool women's NHS Foundation Trust, Liverpool, UK.
| | - Andre Rieutord
- Pharmacy Department, Hospital Antoine Beclère, Paris, France.
| | - Thomas Storme
- Pharmacy Department, APHP, Hospital Robert Debré, Paris, France.
| | - James McElnay
- Clinical and Practice Research Group, School of Pharmacy, Queen's University Belfast, Belfast, UK.
| | - Hussain Mulla
- Department of Pharmacy, University Hospitals of Leicester, Leicester, UK.
| | - Mark A Turner
- Department of Women's and Children's Health, Institute of Translational Medicine, Liverpool Women's NHS Foundation Trust, University of Liverpool, Liverpool, UK.
| | - Irja Lutsar
- Institute of Microbiology, Tartu University, Tartu, Estonia.
| |
Collapse
|
117
|
|
118
|
Le Doare K, Barker CIS, Irwin A, Sharland M. Improving antibiotic prescribing for children in the resource-poor setting. Br J Clin Pharmacol 2015; 79:446-55. [PMID: 24433393 PMCID: PMC4345955 DOI: 10.1111/bcp.12320] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Accepted: 01/08/2014] [Indexed: 12/30/2022] Open
Abstract
Antibiotics are a critically important part of paediatric medical care in low- and middle-income countries (LMICs), where infectious diseases are the leading cause of child mortality. The World Health Organization estimates that >50% of all medicines are prescribed, dispensed or sold inappropriately and that half of all patients do not take their medicines correctly. Given the rising prevalence of antimicrobial resistance globally, inappropriate antibiotic use is of international concern, and countries struggle to implement basic policies promoting rational antibiotic use. Many barriers to rational paediatric prescribing in LMICs persist. The World Health Organization initiatives, such as 'Make medicines child size', the Model List of Essential Medicines for Children and the Model Formulary for Children, have been significant steps forward. Continued strategies to improve access to appropriate drugs and formulations, in conjunction with improved evidence-based clinical guidelines and dosing recommendations, are essential to the success of such initiatives on both a national and an international level. This paper provides an overview of these issues and considers future developments that may improve LMIC antibiotic prescribing.
Collapse
Affiliation(s)
- Kirsty Le Doare
- Paediatric Infectious Diseases Research Group, St George's University of LondonCranmer Terrace, London, SW17 0RE, UK
- Wellcome Trust Centre for Global Health Research, Imperial CollegeNorfolk Place, London, W2 1NY, UK
| | - Charlotte I S Barker
- Paediatric Infectious Diseases Research Group, St George's University of LondonCranmer Terrace, London, SW17 0RE, UK
- Wellcome Trust Centre for Global Health Research, Imperial CollegeNorfolk Place, London, W2 1NY, UK
| | - Adam Irwin
- Paediatric Infectious Diseases Research Group, St George's University of LondonCranmer Terrace, London, SW17 0RE, UK
- Wellcome Trust Centre for Global Health Research, Imperial CollegeNorfolk Place, London, W2 1NY, UK
| | - Mike Sharland
- Paediatric Infectious Diseases Research Group, St George's University of LondonCranmer Terrace, London, SW17 0RE, UK
- Wellcome Trust Centre for Global Health Research, Imperial CollegeNorfolk Place, London, W2 1NY, UK
| |
Collapse
|
119
|
|
120
|
Systemic antifungal prescribing in neonates and children: outcomes from the Antibiotic Resistance and Prescribing in European Children (ARPEC) Study. Antimicrob Agents Chemother 2014; 59:782-9. [PMID: 25403672 DOI: 10.1128/aac.04109-14] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The appropriate use of systemic antifungals is vital in the prevention and treatment of invasive fungal infection (IFI) in immunosuppressed children and neonates. This multicenter observational study describes the inpatient prescribing practice of antifungal drugs for children and neonates and identifies factors associated with prescribing variability. A single-day point prevalence study of antimicrobial use in hospitalized neonates and children was performed between October and December 2012. The data were entered through a study-specific Web-based portal using a standardized data entry protocol. Data were recorded from 17,693 patients from 226 centers. A total of 136 centers recorded data from 1,092 children and 380 neonates receiving at least one antifungal agent. The most frequently prescribed systemic antifungals were fluconazole (n=355) and amphotericin B deoxycholate (n=195). The most common indications for antifungal administration in children were medical prophylaxis (n=325), empirical treatment of febrile neutropenia (n=122), and treatment of confirmed or suspected IFI (n=100 [14%]). The treatment of suspected IFI in low-birthweight neonates accounted for the majority of prescriptions in the neonatal units (n=103). An analysis of variance (ANOVA) demonstrated no significant effect of clinical indication (prophylaxis or treatment of systemic or localized infection) on the total daily dose (TDD). Fewer than one-half of the patients (n=371) received a TDD within the dosing range recommended in the current guidelines. Subtherapeutic doses were prescribed in 416 cases (47%). The predominance of fluconazole and high incidence of subtherapeutic doses in participating hospitals may contribute to suboptimal clinical outcomes and an increased predominance of resistant pathogenic fungi. A global consensus on antifungal dosing and coordinated stewardship programs are needed to promote the consistent and appropriate use of antifungal drugs in neonates and children.
Collapse
|
121
|
Sviestina I, Aston J, Lorrot M, Mozgis D. A comparison of antibiotic use in three specialist paediatric hospitals in France, Latvia and the UK. Eur J Hosp Pharm 2014. [DOI: 10.1136/ejhpharm-2014-000489] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
122
|
Sviestina I, Mozgis D. Antimicrobial usage among hospitalized children in Latvia: a neonatal and pediatric antimicrobial point prevalence survey. MEDICINA-LITHUANIA 2014; 50:175-81. [PMID: 25323546 DOI: 10.1016/j.medici.2014.08.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 07/03/2014] [Accepted: 07/03/2014] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVE The point prevalence survey was conducted as part of the Antibiotic Resistance and Prescribing in European Children (ARPEC) Project. The study aimed at analyzing pediatric and neonatal antimicrobial prescribing patterns in Latvian hospitals, to identify targets for quality improvement. MATERIALS AND METHODS A one day cross-sectional point prevalence survey on antibiotic use in hospitalized children was conducted in November 2012 in 10 Latvian hospitals, using a previously validated and standardized method. The survey included all inpatient pediatric and neonatal beds and identified all children receiving an antimicrobial treatment on the day of survey. RESULTS Overall 549 patients were included in the study; 167 (39%) patients admitted to pediatric wards and 25 (21%) patients admitted to neonatal wards received at least one antimicrobial. Pediatric top three antibiotic groups were third-generation cephalosporins (55 prescriptions, 28%), extended spectrum penicillins (n=32, 16%) and first-generation cephalosporins (n=26, 13%). Eleven pediatric patients (85%) received surgical prophylaxis more than 1 day; 143 pediatric patients (86%) received antibiotics intravenously. Lower respiratory tract infections were the most common indications for antibiotic use both in pediatric (n=60, 35.9%) and neonatal patients (n=9, 36%). The most used antibiotics for neonatal patients were benzylpenicillin (n=12, 32%), and gentamicin (n=9, 24%). CONCLUSIONS We identified a few problematic areas, which need improvement: the high use of third-generation cephalosporins for pediatric patients, prolonged surgical prophylaxis, predominant use of parenteral antibiotics and an urgent need for local antibiotic guidelines.
Collapse
Affiliation(s)
- Inese Sviestina
- University Children's Hospital, Riga, Latvia; Faculty of Pharmacy, Riga Stradins University, Riga, Latvia.
| | - Dzintars Mozgis
- Public Health and Epidemiology Department, Riga Stradins University, Riga, Latvia
| |
Collapse
|
123
|
Sader HS, Mendes RE, Farrell DJ, Flamm RK, Jones RN. Ceftaroline activity tested against bacterial isolates from pediatric patients: results from the assessing worldwide antimicrobial resistance and evaluation program for the United States (2011-2012). Pediatr Infect Dis J 2014; 33:837-42. [PMID: 25222304 DOI: 10.1097/inf.0000000000000307] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Ceftaroline, the active form of ceftaroline fosamil, is a cephalosporin with broad-spectrum bactericidal activity against resistant Gram-positive organisms, including methicillin-resistant Staphylococcus aureus, ceftriaxone-resistant Streptococcus pneumoniae and many Enterobacteriaceae species. Ceftaroline fosamil is approved in the United States for treatment of acute bacterial skin and skin structure infections and community-acquired bacterial pneumonia in adults. METHODS A total of 5291 consecutive unique pediatric patient strains of clinical significance were collected from 157 US medical centers. The isolates were identified locally and forwarded to a central monitoring laboratory for reference antimicrobial susceptibility testing. S. pneumoniae isolates from the 2011 to 2012 respiratory season were serotyped. Susceptibility results were analyzed according to patient age as follows: ≤ 1 years old (yo; 1857 strains); 2-5 (1342); 6-12 (1281) and 13-17 (811). RESULTS Methicillin-resistant Staphylococcus aureus rates were slightly lower in isolates from patients 13-17 yo (39.9%) compared with other age groups (48.2-51.5%), and ceftaroline was consistently active against S. aureus isolates from all 4 age groups [minimal inhibitory concentration (MIC50/90): 0.25-05/1 μg/mL; 99.8-100.0% susceptible]. Overall, 99.8% of methicillin-resistant Staphylococcus aureus were ceftaroline susceptible (MIC50/90: 0.5/1 μg/mL). All S. pneumoniae strains (1178) were ceftaroline susceptible (MIC50/90: ≤ 0.015/0.12 μg/mL), whereas ceftriaxone susceptibility varied from only 84.8 (≤ 1 yo) to 89.7% (13-17 yo). 19A was the most frequent serotype identified among S. pneumoniae and these isolates exhibited low susceptibility to ceftriaxone (42.4%) and most other antimicrobials tested. The highest ceftaroline MIC among Haemophilus influenzae (587 strains) was 0.12 μg/mL (100.0% susceptible), and β-lactamase production rates varied from 24.2 (13-17 yo) to 30.1% (6-12 yo); 27.9% overall. Ceftaroline was also active against β-hemolytic streptococci (556 strains, highest MIC, 0.06 μg/mL). Extended-spectrum β-lactamase (ESBL)-phenotype rates among Escherichia coli/Klebsiella spp. were 6.0/5.1, 11.0/11.5, 5.1/8.3 and 11.4/14.7% for the ≤ 1, 2-5, 6-12 and 13-17 yo age groups, respectively. Ceftaroline exhibited good activity against non-ESBL phenotype strains of E. coli and Klebsiella spp. (MIC90: 0.25 μg/mL for both organisms), but had limited activity against ESBL-producing strains. CONCLUSION Ceftaroline demonstrated potent in vitro activity when tested against S. aureus, S. pneumoniae, H. influenzae, β-hemolytic streptococci and non-ESBL-phenotype E. coli and Klebsiella spp. strains isolated from pediatric patients, independent of patient age.
Collapse
|
124
|
|
125
|
Eley BS, Nuttall J. Developments in pediatric infectious diseases: a review of WSPID 2013. Expert Rev Anti Infect Ther 2014; 12:419-22. [DOI: 10.1586/14787210.2014.894460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
126
|
Dose optimisation of antibiotics in children: application of pharmacokinetics/pharmacodynamics in paediatrics. Int J Antimicrob Agents 2013; 43:223-30. [PMID: 24389079 DOI: 10.1016/j.ijantimicag.2013.11.006] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Accepted: 11/11/2013] [Indexed: 11/24/2022]
Abstract
The judicious use of antibiotics to combat infections in children relies upon appropriate selection of an agent, dose and duration to maximise efficacy and to minimise toxicity. Critical to dose optimisation is an understanding of the pharmacokinetics and pharmacodynamics of available drugs. Optimal dosing strategies may take advantage of pharmacokinetic/pharmacodynamic (PK/PD) principles so that antibiotic dosing can be individualised to assure effective bacterial killing in patients who have altered pharmacokinetics or who have infections with less susceptible or resistant organisms. This review will outline the fundamentals of antimicrobial pharmacokinetics/pharmacodynamics through discussion of antibacterial agents most often used in children. We aim to highlight the importance of dose optimisation in paediatrics and describe non-conventional dosing strategies that can take advantage of PK/PD principles at the bedside.
Collapse
|
127
|
Goossens H. The Chennai declaration on antimicrobial resistance in India. THE LANCET. INFECTIOUS DISEASES 2013; 13:105-6. [PMID: 23347623 DOI: 10.1016/s1473-3099(12)70346-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Herman Goossens
- Laboratory of Medical Microbiology, VAXINFECTIO, University of Antwerp, Antwerp B-2610, Belgium.
| |
Collapse
|