scholarly journals Case-based surveillance of antimicrobial resistance with full susceptibility profiles

2019 ◽  
Vol 1 (3) ◽  
Author(s):  
Sukhyun Ryu ◽  
Benjamin J Cowling ◽  
Peng Wu ◽  
Scott Olesen ◽  
Christophe Fraser ◽  
...  

Abstract Surveillance of antimicrobial resistance (AMR) is essential for clinical decision-making and for public health authorities to monitor patterns in resistance and evaluate the effectiveness of interventions and control measures. Existing AMR surveillance is typically based on reports from hospital laboratories and public health laboratories, comprising reports of pathogen frequencies and resistance frequencies among each species detected. Here we propose an improved framework for AMR surveillance, in which the unit of surveillance is patients with specific conditions, rather than biological samples of a particular type. In this ‘case-based’ surveillance, denominators as well as numerators will be clearly defined with clinical relevance and more comparable at the local, national and international level. In locations with sufficient resources, individual-based data on patient characteristics and full antibiotic susceptibility profiles would provide high-quality evidence for monitoring resistant pathogens of clinical importance, clinical treatment of infections and public health responses to outbreaks of infections with resistant bacteria.

2016 ◽  
Vol 18 (1) ◽  
pp. 190 ◽  
Author(s):  
Diana Paola López Velandia ◽  
María Inés Torres Caycedo ◽  
Carlos Fernando Prada Quiroga

ResumenIntroducción: La resistencia antimicrobiana es un grave problema de salud pública que se encuentra en aumento. Entre los factores más importantes relacionados con la diseminación de bacterias multirresistentes está el uso inapropiado de antibióticos y la aplicación insuficiente de las medidas de prevención y control. Adicionalmente, las bacterias tienen la capacidad de mutar o generar mecanismos de transferencia de genes de resistencia mediante plásmidos, transposones e integrones. Materiales y métodos: Se hizo una revisión crítica de la literatura sobre los principales genes de resistencia Gram negativos y su impacto en la salud pública. Fueron utilizadas las bases de datos de Medline, Embase, Lilacs, ScienceDirect, Scopus, SciELO, the Cochrane Library y Lilacs. Resultados: Se presenta una revisión de literatura que describe y analiza los principales genes de resistencia a antibióticos presentes en bacilos gram negativos, su origen, evolución y diseminación a microorganismos mediante la transferencia horizontal de genes; justificando la importancia de realizar una vigilancia epidemiológica del tránsito de clones con diferentes perfiles de resistencia y principales enzimas. Conclusiones: El seguimiento de la resistencia antimicrobiana desde el punto de vista de la epidemiología molecular forma parte transcendental de la vigilancia antibiótica como lo recomienda la Organización Mundial de la Salud; pues representa el futuro del monitoreo de la resistencia.AbstractIntroduction: Antimicrobial resistance is a serious public health problem that is increasing. Among the most important factors related to the spread of multi-resistant bacteria are the inappropriate use of antibiotics and the insufficient  implementation of prevention and control measures. Additionally, bacteria have the ability to mutate or create mechanisms for transfer of resistance genes via plasmids, transposons and integrons. Materials and methods: A critical review of the literature on major resistance genes in Gram negative bacteria and its impact on public health was conducted. Data have been collected from Medline, Embase, Lilacs, ScienceDirect, Scopus, SciELO, the Cochrane Library and Lilacs. Results: A review of literature that describes and analyzes the main antibiotic resistance genes present in gram-negative bacilli is presented, as well as their origin, evolution, and subsequent spread to hundreds of species of microorganisms by Horizontal gene transfer which justifies the importance of conducting an epidemiological surveillance on transit of clones with different resistance profiles and major enzymes. Conclusions: The control of antimicrobial resistance from the point of view of molecular epidemiology is part of the antibiotic surveillance control as recommended by the World Health Organization; as it represents the future of the surveillance of resistance.


2020 ◽  
Vol 7 (8) ◽  
pp. 2471
Author(s):  
Mercy N. Jimenez ◽  
Emily S. Seltzer ◽  
Bhavana Devanabanda ◽  
Martine Louis ◽  
Nageswara Mandava

Background: Necrotizing fasciitis (NF) is an aggressive and often fatal, soft tissue infection. Delayed surgical therapy leads to worsened outcomes. This study evaluates the mortality, outcomes, and characteristics of patients with NF in a diverse New York City Community Hospital Network.Methods: Retrospective chart review from 2012 to 2019 using ICD-9 and ICD-10 codes of gas gangrene, Fournier’s gangrene, and necrotizing fasciitis was done. Of the 297 patients reviewed 28 met inclusion criteria of imaging findings, operative reports, and clinical diagnosis of NF by an attending surgeon.Results: On average patients in ER were seen by the surgical team within less than 12 hours. Most patients were debrided within 10 hours of surgical consultation and on average received 2.2 procedures. Of the wound cultures obtained 65.38% were polymicrobial in nature. The average length of stay was 17.4 days and 32% of patients required ICU admission. The surgical mortality rate was 7.61%.Conclusions: Necrotizing fasciitis is a rare entity and increasing provider knowledge on patient characteristics as well as the complexity of these patients and the types and number of procedures they require may help guide clinical decision making. We identified that while most of our patients had negative blood cultures on admission, those that had positive blood cultures had multiple organisms growing. Knowing that these patients are complex and likely require multiple procedures, prompt operative intervention is key.


2021 ◽  
Vol 28 (1) ◽  
pp. 1-10
Author(s):  
Michelle L Angus ◽  
Victoria Dickens ◽  
Naveed Yasin ◽  
James Greenwood ◽  
Irfan Siddique

Background/aims The national low back pain pathway in the UK suggests practitioners managing patients with spinal pathology should be specifically trained to do so and have the ability to link with tertiary spinal services when required. The aim of this study was to ensure referrals through to a tertiary spinal surgical centre are appropriate and patients get the correct advice early in their management pathway. Methods A retrospective review of 700 cases were discussed at a spinal case-based discussion meeting in a primary care interface service, compared to services without this model. A convenience sample of cases were analysed with the consultant physiotherapist and those referred from other allied health professionals into the tertiary spinal surgical centre. Case-based team discussion took place before every referral into the tertiary spinal service, with spinal surgical discussion where required. Results Patients referred from other interface services were more likely to require further work-up such as investigations, or be discharged from clinic on their first attendance than those who had been through the case-based discussion. Conclusions A consultant physiotherapist working as part of the spinal team of a tertiary referral centre can help advanced practitioners with their clinical decision making to help prevent unnecessary referrals to spinal surgical services.


2019 ◽  
Vol 15 (3) ◽  
pp. 276-285
Author(s):  
Adam P. Schumaier ◽  
Yehia H. Bedeir ◽  
Joshua S. Dines ◽  
Keith Kenter ◽  
Lawrence V. Gulotta ◽  
...  

Author(s):  
Na Li ◽  
Chong Liu ◽  
Zhiguo Zhang ◽  
Hongna Li ◽  
Tingting Song ◽  
...  

The extensive use of antimicrobials in animal farms poses serious safety hazards to both the environment and public health, and this trend is likely to continue. Antimicrobial resistance genes (ARGs) are a class of emerging pollutants that are difficult to remove once introduced. Understanding the environmental transfer of antimicrobial-resistant bacteria (ARB) and ARGs is pivotal for creating control measures. In this review, we summarize the research progress on the spread and detection of ARB and ARG pollution related to animal husbandry. Molecular methods such as high-throughput sequencing have greatly enriched the information about ARB communities. However, it remains challenging to delineate mechanisms regarding ARG induction, transmission, and tempo-spatial changes in the whole process, from animal husbandry to multiple ecosystems. As a result, future research should be more focused on the mechanisms of ARG induction, transmission, and control. We also expect that future research will rely more heavily on metagenomic -analysis, metatranscriptomic sequencing, and multi-omics technologies


2020 ◽  
Vol 78 (5) ◽  
Author(s):  
Darren W Wong

ABSTRACT There is considerable literature on the threat of antibiotic resistance and its impact on morbidity. However, an under-studied consideration is how carriage of these antibiotic resistant bacteria persist in an individual. The duration that a person harbors a resistant organism is critical in guiding future antimicrobial therapy. Key unexplored questions are the rate of clearance of these organisms and what drives their persistence. This paper attempts to examine these questions and offers some initial answers as well as avenues for further study.


CJEM ◽  
2010 ◽  
Vol 12 (05) ◽  
pp. 435-442 ◽  
Author(s):  
Brian E. Grunau ◽  
Matthew O. Wiens ◽  
Jeffrey R. Brubacher

ABSTRACTObjective:The use of dantrolene in the treatment of hyperpyrexia related to MDMA (3,4-methylenedioxymethamphetamine) is controversial, with little data available to guide clinical decision-making. Although the treatment is recommended by several poison control centres, published data are primarily in the form of case reports and animal and in vitro experiments. We conducted a systematic review to investigate the published evidence regarding the safety and benefits of dantrolene for MDMA-related hyperpyrexia in humans.Data sources:A systematic search of Embase and MEDLINE was conducted from the earliest possible date to November 2008.Study selection:All human trials and case reports of MDMA-related hyperpyrexia were considered.Data extraction:Data were abstracted systematically and characteristics including use of dantrolene, adverse reactions attributed to dantrolene, peak temperature, complications from MDMA-related hyperpyrexia and survival were recorded.Data synthesis:Our search yielded 668 articles of which 53, reporting 71 cases of MDMA-induced hyperpyrexia, met our inclusion criteria. No clinical trials, randomized controlled trials, observational studies or meta-analyses were identified. Dantrolene was used in 26 cases. Patient characteristics were similar in the dantrolene and no dantrolene groups. The proportion of survivors was higher in the dantrolene group (21/26) than in the no dantrolene group (25/45). This difference was especially pronounced in those with extreme (≥ 42°C) and severe (≥ 40°C) fever, with a survival rate of 8 of 13 and 10 of 10, respectively, in the dantrolene group compared with 0 of 4 and 15 of 27 in the no dantrolene group. There were no reports of adverse events attributable to dantrolene with the exception of a possible association with an episode of transient hypoglycemia.Conclusion:Our systematic review suggests that dantrolene is safe for patients with MDMA-related hyperpyrexia. Dantrolene may also be associated with improved survival and reduced complications, especially in patients with extreme (≥ 42°C) or severe (≥ 40°C) hyperpyrexia, although this conclusion must be interpreted with caution given the risk of reporting or publication bias.


Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 4960-4960
Author(s):  
Elizabeth J Heller ◽  
Sarah L Williams ◽  
Keira P Smith ◽  
Steven M. Horwitz

Abstract Background: Therapeutic advances have made the treatment of T-cell lymphomas (TCLs) more effective, less toxic, and more individualized, but research indicates that the multidisciplinary team faces challenges in maintaining a working knowledge of evolving data that can inform clinical decision making. This study was conducted to determine if an online, case-based continuing medical education (CME)/nursing continuing professional development (NCPD) activity could improve clinicians' skills regarding the individualized treatment of patients with TCLs. The educational intervention was intended for all members of the multidisciplinary team: hematologist-oncologists, oncology advanced practitioners and nurses, and other health care professionals involved in the treatment of patients with TCLs. Methods: The CME/NCPD-approved live webinar series titled Update on Therapeutic Advances in T-Cell Lymphoma was presented on March 11, 2021 and March 15, 2021, and was made accessible as a CME/NCPD-approved enduring webinar archive starting on March 18, 2021. Learners participated in a 1-hour online activity regarding current challenges and emerging opportunities in the management of newly diagnosed and relapsed/refractory TCLs. The presentation highlighted mechanisms of action, efficacy, and tolerability of newer therapeutic agents, along with adverse event management strategies. Learners engaged in active learning during case studies that explored patient and disease characteristics that inform care, risk stratification, and treatment. Prior to the activity and following its completion, learners were given a repeated pairs pre- and post-activity assessment consisting of case-based questions that gauged their ability to apply emerging data and guideline recommendations to clinical decision making. Each learner served as their own control. The percentages of learners obtaining correct responses on the pre-activity assessment were compared to those on the post-activity assessment using a chi-squared test. Additionally, learners completed an evaluation of the educational content and self-reported the influence that they judged the activity would have on their future practice. Results: As of July 29, 2021, 218 clinicians had completed the activity for credit. Online education had a significant impact on gains in knowledge and competence in the selection of personalized treatment for patients with TCLs (Figure 1). Learners demonstrated substantial improvements in knowledge of the superior efficacy of mogamulizumab versus vorinostat for a patient with previously treated stage IVB mycosis fungoides (55.67% mean improvement on the post-activity assessment, P < .000001); of the association of the TET2 mutation with angioimmunoblastic T-cell lymphoma (AITL) (54.35% improvement, P < .000001); of the predicted efficacy of oral azacitidine/CHOP (cyclophosphamide/doxorubicin/vincristine/prednisone) for an older patient with peripheral T-cell lymphoma-T follicular helper (PTCL-TFH) (31.28% improvement, P < .000001); of the appropriateness of granulocyte colony-stimulating factor (G-CSF) prophylaxis for a patient with CD30-positive PTCL commencing treatment with brentuximab vedotin/CHP (cyclophosphamide/doxorubicin/prednisone) (19.90% improvement, P < .000001); and of the superior efficacy of brentuximab vedotin versus methotrexate for CD30-positive primary cutaneous anaplastic large cell lymphoma (pcALCL) (17.33% improvement, P < .000001). The case-based assessment questions and answer choices can be seen in Table 1. Learners' responses on the activity evaluation can be seen in Figures 2 and 3. Conclusions: These data indicate that online, case-based CME/NCPD-approved activities can result in statistically significant improvements in clinicians' knowledge of therapeutic advances and can increase their sense of competence and confidence in personalizing treatment plans and managing treatment-related adverse events for patients with TCLs. Acknowledgements: This activity was supported by independent educational grants from Kyowa Kirin and Seagen. Figure 1 Figure 1. Disclosures Horwitz: Affimed: Research Funding; Aileron: Research Funding; ADC Therapeutics, Affimed, Aileron, Celgene, Daiichi Sankyo, Forty Seven, Inc., Kyowa Hakko Kirin, Millennium /Takeda, Seattle Genetics, Trillium Therapeutics, and Verastem/SecuraBio.: Consultancy, Research Funding; Acrotech Biopharma, Affimed, ADC Therapeutics, Astex, Merck, Portola Pharma, C4 Therapeutics, Celgene, Janssen, Kura Oncology, Kyowa Hakko Kirin, Myeloid Therapeutics, ONO Pharmaceuticals, Seattle Genetics, Shoreline Biosciences, Inc, Takeda, Trillium Th: Consultancy; Celgene: Research Funding; C4 Therapeutics: Consultancy; Crispr Therapeutics: Research Funding; Daiichi Sankyo: Research Funding; Forty Seven, Inc.: Research Funding; Kura Oncology: Consultancy; Kyowa Hakko Kirin: Consultancy, Research Funding; Millennium/Takeda: Research Funding; Myeloid Therapeutics: Consultancy; ONO Pharmaceuticals: Consultancy; Seattle Genetics: Consultancy, Research Funding; Secura Bio: Consultancy; Shoreline Biosciences, Inc.: Consultancy; Takeda: Consultancy; Trillium Therapeutics: Consultancy, Research Funding; Tubulis: Consultancy; Verastem/Securabio: Research Funding.


2021 ◽  
Vol 12 (2) ◽  
pp. 1233-1237
Author(s):  
Manoj Kumar ◽  
Anu Sharma ◽  
Yasmeen M ◽  
Parwez

Emerging trends of antimicrobial resistance and development of multidrug resistance and pan resistant strains have become a significant public health problem worldwide. The rate at which newer drugs are developing has slowed down and clinicians are left with only limited therapeutic options for treatment of the patient. We are heading towards the pre antibiotic discovery phase where mortality was high due to unavailability of appropriate drugs; however, in current situation due to misuse or over use of antibiotics, microbes have developed newer methods of resistance, thus rendering these antimicrobials ineffective in their action which has resulted in increased morbidity and mortality among patient and increase in the health care expenditure. Antimicrobial resistance continues to be a major public health problem of international concern. As there is alarming situation globally due to development of multi and pan resistant bacteria which are also known as superbugs, these superbugs have resulted in havoc as these infections are not treatable and is of great concern to the treating physician. Judicious use of antibiotics and implementation of antibiotic stewardship program are the only ways to combat the current situation. The present review aims to provide information on framing of antibiotic policy and implementation of antimicrobial stewardship program.      


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