33 results on '"Avent M."'
Search Results
2. Optimising antimicrobial therapy through the use of Bayesian dosing programs
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Avent, M. L. and Rogers, B. A.
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- 2019
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3. Antimicrobial stewardship in the primary care setting: from dream to reality?
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Avent, M. L., Cosgrove, S. E., Price-Haywood, E. G., and van Driel, M. L.
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- 2020
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4. 53: OPTIMISING THE MANAGEMENT OF VANCOMYCIN THERAPY UTILISNG CO-DESIGN
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Avent, M., primary, Franks, W., additional, Daveson, K., additional, Redmond, A., additional, and Naicker, S., additional
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- 2022
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5. Standard of practice in infectious diseases for pharmacy services.
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Cairns K.A., Avent M., Buono E., Cheah R., Devchand M., Khumra S., Rawlins M., Roberts J.A., Xenos K., Munro C., Cairns K.A., Avent M., Buono E., Cheah R., Devchand M., Khumra S., Rawlins M., Roberts J.A., Xenos K., and Munro C.
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- 2021
6. Standard of practice in infectious diseases for pharmacy services
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Cairns, KA, Avent, M, Buono, E, Cheah, R, Devchand, M, Khumra, S, Rawlins, M, Roberts, JA, Xenos, K, Munro, C, Cairns, KA, Avent, M, Buono, E, Cheah, R, Devchand, M, Khumra, S, Rawlins, M, Roberts, JA, Xenos, K, and Munro, C
- Published
- 2021
7. Vancomycin therapeutics and monitoring: a contemporary approach
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Avent, M. L., Vaska, V. L., Rogers, B. A., Cheng, A. C., van Hal, S. J., Holmes, N. E., Howden, B. P., and Paterson, D. L.
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- 2013
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8. Current use of aminoglycosides: indications, pharmacokinetics and monitoring for toxicity
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Avent, M. L., Rogers, B. A., Cheng, A. C., and Paterson, D. L.
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- 2011
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9. Antibiotic prophylaxis for endocarditis: time to reconsider
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Singh, J, Straznicky, I, Avent, M, and Goss, AN
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- 2005
10. Patients with artificial joints: do they need antibiotic cover for dental treatment?
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Scott, JF, Morgan, D, Avent, M, Graves, S, and Goss, AN
- Published
- 2005
11. Australia-wide point prevalence survey of antimicrobial prescribing in neonatal units: How much and how good?.
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Noronha J., Isaacs D., Lai T.B., Nourse C., Avent M., Moriarty P., Francis J.R., Blyth C.C., Cooper C.M., Bryant P.A., Osowicki J., Gwee A., Britton P.N., Noronha J., Isaacs D., Lai T.B., Nourse C., Avent M., Moriarty P., Francis J.R., Blyth C.C., Cooper C.M., Bryant P.A., Osowicki J., Gwee A., and Britton P.N.
- 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. Method(s): 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. Result(s): 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(s): 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.Copyright © 2015 Wolters Kluwer Health, Inc.
- Published
- 2015
12. Australia-wide point prevalence survey of the use and appropriateness of antimicrobial prescribing for children in hospital.
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Isaacs D., Noronha J., Palasanthiran P., McMullan B., Britton P.N., Lai T., Bryant P.A., Cooper C.M., Blyth C.C., Francis J.R., Clark J., Moriarty P., Avent M., Nourse C., Osowicki J., Gwee A., Isaacs D., Noronha J., Palasanthiran P., McMullan B., Britton P.N., Lai T., Bryant P.A., Cooper C.M., Blyth C.C., Francis J.R., Clark J., Moriarty P., Avent M., Nourse C., Osowicki J., and Gwee A.
- 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]), beta-lactam-beta-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 antimicro
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- 2015
13. A Comparison of High versus Low Dose Recombinant Human Erythropoietin versus Blood Transfusion in the Management of Anaemia of Prematurity in a Developing Country
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Avent, M., primary
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- 2002
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14. HEMATOLOGICAL REFERENCE RANGES IN BLACK VERY LOW BIRTH WEIGHT INFANTS
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Stancheva, V. P., primary, Sherman, G. G., additional, Avent, M., additional, Cory, B. J., additional, Ballot, D. E., additional, and Cooper, P. A., additional
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- 2002
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15. Adult penicillin allergy programmes in Australian hospitals: a practical guide from the National Antibiotic Allergy Network.
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Hannah R, Mitri E, Katelaris CH, O'Hern J, Avent M, Valoppi G, Rawlins M, Frith C, McMullan B, Kong D, Chua K, Legg A, James R, Janson S, Hawkins C, Randall K, Ierano C, Thursky K, and Trubiano JA
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- Adult, Humans, Australia epidemiology, Hospitals standards, Practice Guidelines as Topic, Review Literature as Topic, Anti-Bacterial Agents adverse effects, Antimicrobial Stewardship standards, Drug Hypersensitivity diagnosis, Drug Hypersensitivity epidemiology, Drug Hypersensitivity prevention & control, Penicillins adverse effects
- Abstract
Penicillin allergy is a significant burden on patient, prescribing and hospital outcomes. There has been increasing interest in the incorporation of penicillin allergy testing (i.e. delabelling) into antimicrobial stewardship (AMS) programmes to reduce the burden of penicillin allergy labels and improve prescribing. In particular, there has been a focus on point-of-care penicillin allergy assessment and direct oral challenge for low-risk phenotypes. The National Antibiotic Allergy Network has provided a guide to assist AMS clinicians with the incorporation of penicillin allergy programmes, in particular direct oral challenge, into Australian hospitals., (© 2024 The Author(s). Internal Medicine Journal published by John Wiley & Sons Australia, Ltd on behalf of Royal Australasian College of Physicians.)
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- 2024
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16. Developing an intervention package to optimise the management of vancomycin therapy using theory informed co-design.
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Avent ML, Franks W, Redmond A, Allen MJ, and Naicker S
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- Humans, Australia, Vancomycin therapeutic use, Health Personnel education
- Abstract
Background: Optimising the management of vancomycin by achieving target therapeutic concentrations early during therapy has been associated with reduced mortality and morbidity. Despite the availability of guidelines and training, the management of vancomycin remains suboptimal., Objectives: The primary outcome was the development of interventions and associated implementation strategies to optimise the management of vancomycin therapy. This paper describes how co-design process was used to build a theory informed intervention package, which was implemented across a wide range of in-patient hospital settings in Queensland, Australia., Methods: This multiple methods study was conducted in four phases: 1) a baseline audit to identify the nature of the problem and associated determinants informed by stakeholder interviews 2) mapping these findings to the Theoretical Domains Framework (TDF) to identify behavioural correlates and modifiers 3) prioritising the behavioural modifiers and associated implementation strategies to inform a protype of the intervention in a series of co-design sessions and 4) implementing and evaluating the intervention package. The study was conducted across the four teaching hospitals in a large Queensland Hospital and Health Service across multiple healthcare disciplines namely nurses, doctors, and pharmacists. This intervention package was subsequently implemented across Queensland Health with the support of the local champions under the guidance of the steering group., Results: Clinicians identified that a multifaceted intervention package and training which can be tailored to the health-care professional disciplines, would be best suited to shift clinician behaviour to align with guidelines. The findings from the co-design process aligned with theory-informed intervention package. Each of the intervention strategies varied in their frequency and popularity of use., Conclusions: The use of theory-informed and participatory approach assisted with the intervention development process and aligned the intervention content with the priorities of stakeholders. The TDF provided a structured process for developing intervention content which is both acceptable and useful to stakeholders and may improve the management of vancomycin., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2024
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17. An innovative antimicrobial stewardship programme for children in remote and regional areas in Queensland, Australia: optimising antibiotic use through timely intravenous-to-oral switch.
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Avent ML, Lee XJ, Irwin AD, Graham N, Brain D, Fejzic J, van Driel M, and Clark JE
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- Administration, Intravenous, Anti-Bacterial Agents therapeutic use, Australia, Child, Humans, Queensland, Antimicrobial Stewardship
- Abstract
Objectives: Little is known about the benefits of timely switch from intravenous (IV) to oral antibiotic therapy in children. We evaluated the appropriateness of IV-to-oral switch of antibiotic therapy in remote and regional areas of Australia following the implementation of a multifaceted package of interventions., Methods: The intervention package, including clinician guidelines, medication review stickers, patient information leaflets and educational resources, was implemented in seven facilities in Queensland, Australia. Children with community-acquired pneumonia and skin and soft-tissue infections were switched to oral therapy if they met the required 'IV-to-oral switch' criteria. Data were collected for a 7-month period from May to November for the baseline (2018) and intervention (2019) phases., Results: A total of 357 patients were enrolled in the study, including 178 in the baseline phase and 179 in the intervention phase. The percentage of patients who switched to oral therapy or stopped IV antibiotics, within 24 h of eligibility, increased from 87.6% (156/178) in the baseline phase to 97.2% (174/179) in the intervention phase (P = 0.003). The average number of extra IV days decreased from 0.45 days in the baseline period to 0.18 days in the intervention period (P < 0.001). The median patient length of stay was 2 days for both phases. The only adverse events recorded were line-associated infiltration, with a decrease from 34.3% (61/178) (baseline) to 17.9% (32/179) (intervention) (P < 0.001)., Conclusion: A multifaceted intervention package to enhance timely IV-to-oral switch of antibiotic therapy for children in remote and regional facilities is effective., (Crown Copyright © 2021. Published by Elsevier Ltd. All rights reserved.)
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- 2022
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18. Implementation of a novel antimicrobial stewardship strategy for rural facilities utilising telehealth.
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Avent ML, Walker D, Yarwood T, Malacova E, Brown C, Kariyawasam N, Ashley S, and Daveson K
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- Drug Utilization, Hospitals, Rural, Humans, Outcome Assessment, Health Care methods, Practice Patterns, Physicians', Rural Population, Anti-Bacterial Agents therapeutic use, Antimicrobial Stewardship methods, Drug Prescriptions, Guideline Adherence, Telemedicine
- Abstract
A significant portion of healthcare takes place in small hospitals, and many are located in rural and regional areas. Facilities in these regions frequently do not have adequate resources to implement an onsite antimicrobial stewardship programme and there are limited data relating to their implementation and effectiveness. We present an innovative model of providing a specialist telehealth antimicrobial stewardship service utilising a centralised service (Queensland Statewide Antimicrobial Stewardship Program) to a rural Hospital and Health Service. Results of a 2-year post-implementation follow-up showed an improvement in adherence to guidelines [33.7% (95% CI 27.0-40.4%) vs. 54.1% (95% CI 48.7-59.5%)] and appropriateness of antimicrobial prescribing [49.0% (95% CI 42.2-55.9%) vs. 67.5% (95% CI 62.7-72.4%) (P < 0.001). This finding was sustained after adjustment for hospitals, with improvement occurring sequentially across the years for adherence to guidelines [adjusted odds ratio (aOR) = 2.44, 95% CI 1.70-3.51] and appropriateness of prescribing (aOR = 2.48, 95% CI 1.70-3.61). There was a decrease in mean total antibiotic use (DDDs/1000 patient-days) between the years 2016 (52.82, 95% CI 44.09-61.54) and 2018 (39.74, 95% CI 32.76-46.73), however this did not reach statistical significance. Additionally, there was a decrease in mean hospital length of stay (days) from 2016 (3.74, 95% CI 3.08-4.41) to 2018 (2.55, 95% CI 1.98-3.12), although this was not statistically significant. New telehealth-based models of antimicrobial stewardship can be effective in improving prescribing in rural areas. Programmes similar to ours should be considered for rural facilities., Competing Interests: Declaration of Competing Interest None declared., (Crown Copyright © 2021. Published by Elsevier Ltd. All rights reserved.)
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- 2021
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19. Where to from here? Identifying and prioritising future directions for addressing drug-resistant infection in Australia.
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Merlo G, Avent M, Yarwood T, Smith B, van Driel M, and Hall L
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- Australia, Health Plan Implementation, Hospitals, Leadership, Anti-Bacterial Agents pharmacology, Antimicrobial Stewardship organization & administration, Drug Resistance, Multiple, Bacterial
- Abstract
Background: The Australian National Antimicrobial Resistance Strategy calls for a collaborative effort to change practices that have contributed to the development of drug-resistance and for implementation of new initiatives to reduce antibiotic use., Methods: A facilitated workshop was undertaken at the 2019 National Australian Antimicrobial Resistance Forum to explore the complexity of antimicrobial stewardship (AMS) implementation in Australia and prioritise future action. Participants engaged in rotating rounds of discussion using a world café format addressing six topics relating to AMS implementation. Once all tables had discussed all themes the discussion concluded and notes were summarised. The documents were independently openly coded by two researchers to identify elements relating to the implementation of antimicrobial stewardship., Results: There were 39 participants in the facilitated discussions, including pharmacists, infectious disease physicians, infection prevention nurses, and others. Participants discussed strategies they had found successful, including having a regular presence in clinical areas, adapting messaging and implementation strategies for different disciplines, maintaining positivity, and being patient-focused. Many of the recommendations for the next step involved being patient focussed and outcomesdriven. This involves linking data to practice, using patient stories, using data to celebrate wins and creating incentives., Discussion: Recommendations from the workshop should be included in priority setting for the implementation of AMS initiatives across Australia.
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- 2021
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20. Evaluation of quick sequential organ failure assessment and systemic inflammatory response syndrome in patients with gram negative bloodstream infection.
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McNamara JF, Avent M, Stewart A, Kwan C, and Paterson DL
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- Adult, Aged, Aged, 80 and over, Bacteremia complications, Bacteremia microbiology, Female, Gram-Negative Bacterial Infections complications, Gram-Negative Bacterial Infections microbiology, Hospital Mortality, Humans, Intensive Care Units, Male, Middle Aged, Pilot Projects, Predictive Value of Tests, Prospective Studies, Queensland, Systemic Inflammatory Response Syndrome complications, Young Adult, Bacteremia mortality, Gram-Negative Bacterial Infections mortality, Organ Dysfunction Scores, Systemic Inflammatory Response Syndrome mortality
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Background: The quick sequential organ failure assessment (qSOFA) score predicts mortality in patients with suspected infection. We sought to understand how well qSOFA and the Systemic Inflammatory Response Syndrome (SIRS) criteria predict gram negative bacteraemia., Methods: We prospectively evaluated 99 patients with gram negative bloodstream infection from a single tertiary centre. We assessed the utility of SIRS and qSOFA for their rate of positivity and association with early delivery of antibiotics (<3 h)., Results: The SIRS criteria had the highest positivity rate amongst patients with gram negative bacteraemia (85%) compared to the qSOFA criteria (25%) on the day of first positive culture. Positive SIRS criteria was the only score associated with delivery of antibiotics within 3 h (Relative risk 3.5, 95% Confidence interval 1.3 to 12.5, p = < 0.02)., Conclusion: In patients with gram negative bloodstream infection SIRS criteria was the most common positive risk score and had a higher association with early delivery of antibiotics when compared to qSOFA., Competing Interests: Declaration of Competing Interest Dr. McNamara has nothing to disclose. Dr. Avent has nothing to disclose. Dr. Stewart has nothing to disclose. Dr. Kwan has nothing to disclose. Dr. Paterson reports grants from National Health and Medical Research Council, non-financial support from Ecolab Pty Ltd, non-financial support from Whiteley Corporation, non-financial support from Kimberly-Clark Professional, during the conduct of the study; personal fees from Merck, personal fees from Shionogi, personal fees from Achaogen, personal fees from AstraZeneca, personal fees from Leo Pharmaceuticals, personal fees from Bayer, personal fees from GlazoSmithKline, personal fees from Cubist, personal fees from Venatorx, personal fees from Accelerate, grants from Shionogi, grants from Merck (MSD), personal fees from Pfizer, outside the submitted work;., (Copyright © 2020 Australasian College for Infection Prevention and Control. All rights reserved.)
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- 2020
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21. Oral or intravenous antibiotics?
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McCarthy K and Avent M
- Abstract
Intravenous antibiotics are overused in hospitals. Many infections can be managed with oral antibiotics Oral antibiotics avoid the adverse effects of intravenous administration. They are also usually less expensive When intravenous antibiotics are indicated, it may be possible to switch to oral therapy after a short course. There are guidelines to aid the clinician with the timing of the switch so that there is no loss of efficacy Infections that may be suitable for a short course of intravenous antibiotic include pneumonia, complicated urinary tract infections, certain intra-abdominal infections, Gram-negative bacteraemia, acute exacerbations of chronic lung disease, and skin and soft tissue infections Bone and joint infections and infective endocarditis are managed with prolonged courses of intravenous antibiotics. However, there is research looking at the feasibility of an earlier switch to oral antibiotics in these conditions, Competing Interests: Conflict of interest: none declared, ((c) NPS MedicineWise 2020.)
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- 2020
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22. A mixed methods study of the barriers and enablers in implementing antimicrobial stewardship programmes in Australian regional and rural hospitals.
- Author
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James R, Luu S, Avent M, Marshall C, Thursky K, and Buising K
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- Australia, Hospitals, Rural, Humans, Interviews as Topic, Anti-Infective Agents therapeutic use, Drug Utilization standards, Organizational Policy
- Abstract
Objectives: The Australian Commission on Safety and Quality in Health Care released recommendations for antimicrobial stewardship programmes to be established within all Australian healthcare facilities. However, implementation practices are not well defined. The aim of this study was to gain an understanding of factors affecting implementation of antimicrobial stewardship programmes within Australian regional and rural hospitals., Methods: This study was designed whereby a preliminary quantitative process was used to contribute to a principally qualitative study. Site visits to regional and rural hospitals in Queensland, New South Wales, Victoria and South Australia were planned to assess factors impacting on implementation of antimicrobial stewardship. Subsequently researchers identified issues requiring further exploration with specific key informant interviews and focus group discussions. Data were collected between May and October 2012 and entered into Nvivo10, openly coded and analysed according to mixed methods data analysis principles., Results: Regional and rural hospitals were not conducting many of the recommended activities and seven major themes emerged. The key barriers were perceived to be lack of access to education, resources and specialist support. The enablers were a flatter governance structure, greater sense of pride, desire for success and good internet and tele-health access., Conclusions: This study helps us to identify where efforts should be focused to facilitate the establishment of antimicrobial stewardship programmes in regional and rural hospitals, by describing the gaps and limitations of current programmes and the major issues currently being faced, providing recommendations to better guide activities that support regional and rural hospitals., (© The Author 2015. Published by Oxford University Press on behalf of the British Society for Antimicrobial Chemotherapy. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.)
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- 2015
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23. Australia-wide Point Prevalence Survey of Antimicrobial Prescribing in Neonatal Units: How Much and How Good?
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Osowicki J, Gwee A, Noronha J, Britton PN, Isaacs D, Lai TB, Nourse C, Avent M, Moriarty P, Francis JR, Blyth CC, Cooper CM, and Bryant PA
- Subjects
- Antibiotic Prophylaxis, Cross-Sectional Studies, Female, Humans, Infant, Newborn, Male, Sepsis drug therapy, Anti-Infective Agents administration & dosage, Anti-Infective Agents therapeutic use, Drug Resistance, Bacterial, Intensive Care Units, Neonatal statistics & numerical data, Prescriptions statistics & numerical data
- 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.
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- 2015
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24. Australia-wide point prevalence survey of the use and appropriateness of antimicrobial prescribing for children in hospital.
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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, and Bryant PA
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- Adolescent, Australia epidemiology, Child, Cross-Sectional Studies, Health Care Surveys, Hospitals standards, Hospitals statistics & numerical data, Humans, Practice Patterns, Physicians' statistics & numerical data, Prevalence, Anti-Infective Agents therapeutic use, Inappropriate Prescribing statistics & numerical data
- 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.
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- 2014
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25. The impact of an infectious diseases consultation on antimicrobial prescribing.
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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, and Bryant PA
- Subjects
- Humans, Communicable Diseases diagnosis, Communicable Diseases epidemiology, Hospitals, Pediatric statistics & numerical data, Referral and Consultation statistics & numerical data, Tertiary Care Centers statistics & numerical data
- Published
- 2014
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26. Insulin infusions in extremely low birth weight infants.
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Avent M and Whitfield J
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- Humans, Infant, Newborn, Serum Albumin, Drug Delivery Systems instrumentation, Hyperglycemia drug therapy, Infant, Very Low Birth Weight, Infusions, Intravenous instrumentation
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- 2000
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27. Evaluating the delivery of nebulized and metered-dose inhalers in an in vitro infant ventilator lung model.
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Avent ML, Gal P, Ransom JL, Brown YL, Hansen CJ, Ricketts WA, and Soza F
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- Chromatography, High Pressure Liquid, Evaluation Studies as Topic, Humans, In Vitro Techniques, Infant, Models, Biological, Albuterol administration & dosage, Beclomethasone administration & dosage, Bronchodilator Agents administration & dosage, Nebulizers and Vaporizers, Ventilators, Mechanical standards
- Abstract
Objective: To evaluate drug delivery to the lungs of nebulized and metered-dose inhalers (MDIs) in an in vitro infant lung model., Methods: An in vitro lung model was modified to study drug delivery. A 1000 mL intravenous bag filled with 500 mL deionized water was attached to a 3.5 mm (12 cm length) endotracheal tube. An inline Marquest Whisper Jet infant circuit nebulizer system delivered 2.5 mg/3 mL albuterol sulfate inhalation solution (Ventolin nebules) at a flow rate of 5 L/min. An Aerochamber (Monaghan) was placed at the endotracheal tube for the delivery of the MDIs. Albuterol MDI (Ventolin) 10 inhalations and beclomethasone MDI (Beclovent) 20 inhalations were delivered. A Servo 900C (Siemens-Elma) was used at the following ventilator settings: positive inspiratory pressure 30 cm H2O), intermittent mandatory ventilation 40 breaths/min, positive end expiratory pressure 4 cm H2O, inspiratory time 0.4 sec. Each formulation was run at least 10 times and assayed in duplicate by HPLC. An unpaired Student's t-test was used to analyze the statistical significance of the data., Results: There was a significantly greater percentage of drug delivery with MDI albuterol (1.96 +/- 0.50) as compared with nebulized albuterol (1.26 +/- 0.37) (p = 0.002) or beclomethasone diproprionate (0.51 +/- 0.24) (p = 0.001)., Conclusions: Albuterol MDI provides a more efficient delivery of drug to the lung as compared with nebulized albuterol and MDI beclomethasone diproprionate.
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- 1999
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28. Comparing the delivery of albuterol metered-dose inhaler via an adapter and spacer device in an in vitro infant ventilator lung model.
- Author
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Avent ML, Gal P, Ransom JL, Brown YL, and Hansen CJ
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- Chromatography, High Pressure Liquid, Humans, In Vitro Techniques, Infant, Models, Biological, Albuterol administration & dosage, Bronchodilator Agents administration & dosage, Nebulizers and Vaporizers, Ventilators, Mechanical standards
- Abstract
Objective: To compare the delivery of an albuterol metered-dose inhaler (MDI) (Ventolin) via an Aerochamber (Monaghan) with an inline adapter (Medicomp Straight Swivel) in an in vitro infant lung model., Methods: An in vitro infant lung model was modified to compare the delivery of albuterol MDI 10 inhalations via an Aerochamber with an inline adapter. The adapter and Aerochamber were placed at the endotracheal tube. A 1000 mL intravenous bag filled with 500 mL deionized water was attached to a 3.5 mm endotracheal tube (10 cm length). An Infant Bear Cub ventilator was used at the following settings: positive inspiratory pressure 20 cm H2O, intermittent mandatory ventilation 40 breaths/min, positive end expiratory pressure 4 cm H2O, and inspiratory time 0.5 second. Each device was run at least 10 times and assayed in duplicate by HPLC. An unpaired Student's t-test was used to analyze the statistical significance of the data., Results: There was significantly greater delivery of albuterol with the Aerochamber (19.49 +/- 7.23 microg; 2.17% +/- 0.8%) as compared with an inline adapter (1.0625 +/- 1.36 microg; 0.12% +/- 0.15%) (p = 0.001)., Conclusions: The Aerochamber provides a greater delivery of albuterol metered-dose inhalations to the lung than the inline adapter in an in vitro infant lung model.
- Published
- 1999
- Full Text
- View/download PDF
29. Colored deposit left in endotracheal tubes by ipratropium bromide.
- Author
-
Avent ML, Gal P, Ransom JL, and Fulp J
- Subjects
- Chemical Precipitation, Color, Humans, Infant, Newborn, Intubation, Intratracheal instrumentation, Ipratropium chemistry
- Published
- 1995
- Full Text
- View/download PDF
30. The role of inhaled steroids in the treatment of bronchopulmonary dysplasia.
- Author
-
Avent ML, Gal P, and Ransom JL
- Subjects
- Administration, Inhalation, Humans, Infant, Newborn, Infant, Premature, Respiration, Artificial, Bronchopulmonary Dysplasia drug therapy, Glucocorticoids administration & dosage
- Abstract
Bronchopulmonary dysplasia has been well described in premature infants requiring mechanical ventilation. Systemic steroids are one of many treatment modalities used in the management of these infants, but these agents have been associated with a number of adverse effects. Aerosolized therapy has been proposed as an alternative in order to minimize the systemic complications that occur with the parenteral route. The initial reports of inhaled steroids, although limited, have shown promising results with minimal side effects. This article addresses the mechanism of action, the role in therapy, and potential complications associated with the use of inhaled steroids in the treatment of bronchopulmonary dysplasia.
- Published
- 1994
31. Warfarin-induced intramural hematoma of the small intestine.
- Author
-
Avent ML, Canaday BR, and Sawyer WT
- Subjects
- Adult, Female, Gastrointestinal Hemorrhage diagnosis, Gastrointestinal Hemorrhage therapy, Hematoma diagnosis, Hematoma therapy, Humans, Gastrointestinal Hemorrhage chemically induced, Hematoma chemically induced, Intestine, Small, Warfarin adverse effects
- Abstract
A case of warfarin-induced intramural hematoma and hemorrhagic infarction of the small intestine is described, and the literature on this adverse effect is reviewed. A 32-year-old white woman who had been receiving warfarin and carbamazepine came to a clinic complaining of lower back and stomach pain. She had a history of iliofemoral deep venous thromboses and seizures. A pelvic sonogram showed a large quantity of fluid present. Her prothrombin time (PT) was 29.2 sec. Her hemoglobin concentration and hematocrit were within the normal ranges. The patient was admitted to the hospital when her back pain increased and she vomited. The warfarin was discontinued. On day 5 the patient was still having abdominal pain and nausea. Her hemoglobin concentration and hematocrit had fallen to 6.6 g/dL and 20%, although her PT had decreased to 12.5 sec. On the same day, the patient underwent an exploratory laparotomy, and an indurated and ischemic area of jejunum was found and resected. The pathology report indicated the presence of hemorrhage and infarction consistent with an anticoagulant-related disorder. About 100 cases of intramural hematoma of the small intestine induced by anticoagulant therapy have been reported. Most patients are white males about 60 years of age. The sites most frequently involved are the duodenum and proximal jejunum. Symptoms include constipation, nausea, vomiting, and abdominal pain. Laboratory test and radiological findings are fairly nonspecific, but when found together in a patient receiving an anticoagulant, the diagnosis can be made with some confidence. Management may be complicated by the bleeding disorder, the intestinal obstruction if present, and the original indication for warfarin therapy.(ABSTRACT TRUNCATED AT 250 WORDS)
- Published
- 1992
32. Preliminary clinical evaluation of dentinal and enamel bonding in primary anterior teeth.
- Author
-
Atkins CO Jr, Rubenstein L, and Avent M
- Subjects
- Child, Preschool, Dental Caries therapy, Humans, Tooth Fractures therapy, Tooth, Deciduous ultrastructure, Composite Resins, Dental Bonding, Dental Enamel ultrastructure, Dentin ultrastructure
- Published
- 1986
33. Frequency of undesirable side-effects following professionally applied topical fluoride.
- Author
-
Rubenstein LK and Avent MA
- Subjects
- Adolescent, Age Factors, Body Weight, Child, Child, Preschool, Fluorides, Topical administration & dosage, Headache chemically induced, Humans, Nausea chemically induced, Fluorides, Topical adverse effects
- Abstract
Of total of 149 questionnaires distributed to parents, ninety-one were completed and returned (61.1 percent). Overall, six children reported side-effects, including nausea and vomiting, either immediately or within one hour following treatment. Age and weight were not factors in experiencing side-effects.
- Published
- 1987
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