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1.
Transpl Infect Dis ; : e14297, 2024 Jun 17.
Artigo em Inglês | MEDLINE | ID: mdl-38884941

RESUMO

Organic digital education (ODE) includes online medical education content that can take various forms, such as blogs, social media, videos, podcasts, or infographics. Multimedia ODE platforms have unique benefits and have quickly become an essential part of medical education. Modern medical educators with competency in digital teaching modalities can leverage these for teaching as well as career development and dissemination of scientific research. The ID Digital Institute is a digital education program with a curriculum designed to equip infectious diseases (ID) professionals with the skills to appraise, create, curate, and integrate ODE into their teaching and career. We share the structure, content, and lessons learned from the ID Digital Institute program. We also illustrate how digital education skills can present unique opportunities to align with current and future transplant and immunocompromised host infectious diseases education efforts.

2.
Transpl Infect Dis ; : e14327, 2024 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-38946124

RESUMO

BACKGROUND: Invasive aspergillosis affects solid organ transplant (SOT) recipients, carrying a high risk of mortality and morbidity in this population. Rapid and accurate diagnosis is essential to ensure the initiation of correct antifungal therapy. We aimed to evaluate the performance of the bronchoalveolar lavage (BAL) Eurofins Viracor Aspergillus PCR (AspPCR) in diagnosing invasive pulmonary aspergillosis (IPA) in SOT recipients. METHODS: We conducted a multicenter retrospective study of SOT recipients in Arizona from February 2019 to December 2022 who had AspPCR done at the time of the clinical encounter. Probable IPA was defined as a positive BAL culture with Aspergillus spp. with clinical and imaging findings of IPA per EORTC/MSGERC criteria. RESULTS: Ninety-nine SOT recipients with 131 encounters with BAL AspPCR testing were included. The median age was 66, the majority were White, non-Hispanics (60%), and males (66%). Among the participants, 93 lung transplant recipients with 87 of the encounters received antifungal prophylaxis active against Aspergillus spp. Sixty-four encounters had BAL galactomannan (GM), all of which had BAL GM <1 OD, and one case had a serum GM of 10 OD. Nine cases met the definition of IPA. The sensitivity of the BAL AspPCR was 67% (95% CI 30%-93%), and the specificity was 98% (95% CI 93%-99%). CONCLUSION: BAL AspPCR had moderate sensitivity and high specificity in identifying IPA in our cohort of SOT recipients. Further studies in populations with a higher prevalence of IPA are needed to evaluate the performance of this test.

3.
Curr Opin Organ Transplant ; 29(1): 56-63, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-37991047

RESUMO

PURPOSE OF REVIEW: Infections in hospitalized patients awaiting solid organ transplantation can pose complicated diagnostic and therapeutic challenges. Goals of management include stabilizing the patient, treating or controlling infections, and decreasing the risk of reactivation of infection after transplant. RECENT FINDINGS: Groups such as The Organ Procurement and Transplantation Network, American Society of Transplantation Infectious Diseases Community of Practice and the European Society of Clinical Microbiology and Infectious Diseases have updated their guidelines on screening and treatment of infection in transplant candidates. There are also recent developments in therapeutic options for tuberculosis, COVID-19, Clostridioides difficile colitis, bloodstream infections, and other common infections. SUMMARY: Ideally, antimicrobial therapy should be complete prior to transplantation. In situations in which completion of therapy prior to transplant is not feasible, therapy may need to be prolonged or modified. In most situations, infections can be managed similarly to the general population, although some infections, particularly fungal and mycobacterial, require a different management approach. We review disease- and organ-specific management.


Assuntos
Doenças Transmissíveis , Transplante de Órgãos , Tuberculose , Humanos , Transplante de Órgãos/efeitos adversos , Transplantados , Sociedades Médicas
4.
Clin Infect Dis ; 76(10): 1738-1749, 2023 05 24.
Artigo em Inglês | MEDLINE | ID: mdl-36750934

RESUMO

BACKGROUND: Infectious diseases and ophthalmology professional societies have disagreed regarding ocular screening in patients with candidemia. We aimed to summarize the current evidence on the prevalence of ocular candidiasis (OC) and Candida endophthalmitis (CE) according to the standardized definitions. METHODS: A literature search was conducted from the inception date through 16 October 2022 using PubMed, Embase, and SCOPUS. Pooled prevalence of ocular complications was derived from generalized linear mixed models (PROSPERO CRD42022326610). RESULTS: A total of 70 and 35 studies were included in the meta-analysis for OC and concordant CE (chorioretinitis with vitreous involvement), respectively. This study represented 8599 patients with candidemia who underwent ophthalmologic examination. Pooled prevalences (95% CI) of OC, overall CE, concordant CE, and discordant CE were 10.7% (8.4-13.5%), 3.1% (2.1-4.5%), 1.8% (1.3-2.6%), and 7.4% (4.5-12%) of patients screened, respectively. Studies from Asian countries had significantly higher concordant CE prevalence (95% CI) of patients screened (3.6%; 2.9-4.6%) compared with studies from European countries (1.4%; .4-5%) and American countries (1.4%; .9-2.2%) (P <.01). Presence of total parenteral nutrition and Candida albicans was associated with CE, with pooled odds ratios (95% CI) of 6.92 (3.58-13.36) and 3.02 (1.67-5.46), respectively. CONCLUSIONS: Prevalence of concordant CE overall and among Asian countries was 2 and 4 times higher than the prevalence previously reported by the American Academy of Ophthalmology (AAO) of <0.9%, respectively. There is an urgent need to study optimal screening protocols and to establish joint recommendations by the Infectious Diseases Society of America and AAO.


Assuntos
Candidemia , Candidíase , Endoftalmite , Infecções Oculares Fúngicas , Humanos , Candidemia/complicações , Prevalência , Candidíase/diagnóstico , Candida albicans , Infecções Oculares Fúngicas/epidemiologia , Infecções Oculares Fúngicas/diagnóstico , Infecções Oculares Fúngicas/etiologia , Endoftalmite/epidemiologia , Endoftalmite/diagnóstico
5.
Teach Learn Med ; : 1-10, 2023 Jun 21.
Artigo em Inglês | MEDLINE | ID: mdl-37341557

RESUMO

Problem: Traditionally, clinical reasoning is developed with purposeful exposure to clinical problems through case-based learning and clinical reasoning conferences that harvest a collaborative exchange of information in real-life settings. While virtual platforms have greatly expanded access to remote clinical learning, case-based clinical reasoning opportunities are scarce in low and middle income countries. Intervention: The Clinical Problem Solvers (CPSolvers), a nonprofit organization focused on clinical reasoning education, launched Virtual Morning Report (VMR) during the COVID-19 pandemic. VMR is an open-access, case-based clinical reasoning virtual conference on the Zoom platform modeled after an academic morning report format available to participants worldwide. The authors conducted 17 semi-structured interviews with CPSolvers' VMR participants from 10 different countries to explore the experiences of the international participants of VMR. Context: The CPSolvers was founded by US physicians and has now expanded to include international members throughout all levels of the organization. VMR is open-access to all learners. Preliminary survey data collected from VMR sessions revealed 35% of the attendees were from non-English speaking countries and 53% from non US countries. Impact: Analysis generated four themes that captured the experiences of international participants of VMR: 1) Improving clinical reasoning skills where participants had little to no access to this education or content; 2) Creating a global community from a diverse, safe, and welcoming environment made possible by the virtual platform; 3) Allowing learners to become agents of change by providing tools and skills that are directly applicable in the setting in which they practice medicine; 4) Establishing a global platform, with low barriers to entry and open-access to expertise and quality teaching and content. Study participants agreed with the themes, supporting trustworthiness. Lessons Learned: Findings suggest VMR functions as and has grown into a global community of practice for clinical reasoning. The authors propose strategies and guiding principles based on the identified themes for educators to consider when building effective global learning communities. In an interdependent world where the virtual space eliminates the physical boundaries that silo educational opportunities, emphasis on thoughtful implementation of learning communities in a global context has the potential to reduce medical education disparities in the clinical reasoning space and beyond.

6.
Curr Opin Organ Transplant ; 28(6): 463-470, 2023 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-37751314

RESUMO

PURPOSE OF REVIEW: As the volume and complexity of solid organ and hematopoietic stem cell transplantation continue to see rapid growth, the training of a specialized transplant infectious diseases physician workforce is of increasing interest and importance. This review provides an overview of the evolution of transplant infectious diseases training programs, essential elements of training, as well as future needs. RECENT FINDINGS: Despite the first publication of a transplant infectious diseases curriculum in 2010, more recent surveys of infectious diseases trainees have identified gaps in didactic curriculum, donor and recipient assessment, and safe living practices. SUMMARY: This review of transplant infectious diseases training summarizes growth through the decades, the current landscape of recommend training elements, suggested areas for continued development and expansion in training as well as novel methodologies to reach a modern trainee audience.


Assuntos
Doenças Transmissíveis , Transplante de Células-Tronco Hematopoéticas , Criança , Humanos , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Currículo , Doadores de Tecidos , Inquéritos e Questionários
7.
Clin Infect Dis ; 74(Suppl_3): S237-S243, 2022 05 15.
Artigo em Inglês | MEDLINE | ID: mdl-35568480

RESUMO

Social media (SoMe) platforms have been increasingly used by infectious diseases (ID) learners and educators in recent years. This trend has only accelerated with the changes brought to our educational spaces by the coronavirus disease 2019 pandemic. Given the increasingly diverse SoMe landscape, educators may find themselves struggling with how to effectively use these tools. In this Viewpoint we describe how to use SoMe platforms (e.g., Twitter, podcasts, and open-access online content portals) in medical education, highlight medical education theories supporting their use, and discuss how educators can engage with these learning tools effectively. We focus on how these platforms harness key principles of adult learning and provide a guide for educators in the effective use of SoMe tools in educating ID learners. Finally, we suggest how to effectively interact with and leverage these increasingly important digital platforms.


Assuntos
COVID-19 , Doenças Transmissíveis , Educação Médica , Mídias Sociais , Humanos , Aprendizagem
8.
Clin Infect Dis ; 74(1): 83-91, 2022 01 07.
Artigo em Inglês | MEDLINE | ID: mdl-33693551

RESUMO

BACKGROUND: Coronavirus disease 2019 (COVID-19)-associated pulmonary aspergillosis (CAPA) occurs in critically ill patients with COVID-19. Risks and outcomes remain poorly understood. METHODS: A retrospective cohort study of mechanically ventilated adult patients with COVID-19 admitted to 5 Johns Hopkins hospitals was conducted between March and August 2020. CAPA was defined using composite clinical criteria. Fine and Gray competing risks regression was used to analyze clinical outcomes and, multilevel mixed-effects ordinal logistic regression was used to compare longitudinal disease severity scores. RESULTS: In the cohort of 396 people, 39 met criteria for CAPA. Patients with CAPA were more likely than those without CAPA to have underlying pulmonary vascular disease (41% vs 21.6%, respectively; P = .01), liver disease (35.9% vs 18.2%; P = .02), coagulopathy (51.3% vs 33.1%; P = .03), solid tumors (25.6% vs 10.9%; P = .02), multiple myeloma (5.1% vs 0.3%; P = .03), and corticosteroid exposure during the index admission (66.7% vs 42.6%; P = .005), and had lower body mass indexes (median, 26.6 vs 29.9 [calculated as weight in kilograms divided by height in meters squared]; P = .04). Patients with CAPA had worse outcomes, as measured by ordinal severity of disease scores, requiring longer time to improvement (adjusted odds ratio, 1.081.091.1; P < .001), and advancing in severity almost twice as quickly (subhazard ratio, 1.31.82.5; P < .001). They were intubated twice as long as those without CAPA (subhazard ratio, 0.40.50.6; P < .001) and had longer hospital stays (median [interquartile range], 41.1 [20.5-72.4) vs 18.5 [10.7-31.8] days; P < .001). CONCLUSION: CAPA is associated with poor outcomes. Attention to preventive measures (screening and/or prophylaxis) is warranted in people with high risk of CAPA.


Assuntos
COVID-19 , Aspergilose Pulmonar Invasiva , Aspergilose Pulmonar , Adulto , Humanos , Aspergilose Pulmonar Invasiva/diagnóstico , Aspergilose Pulmonar Invasiva/epidemiologia , Respiração Artificial/efeitos adversos , Estudos Retrospectivos , SARS-CoV-2
9.
Clin Infect Dis ; 72(9): 1608-1614, 2021 05 04.
Artigo em Inglês | MEDLINE | ID: mdl-32211758

RESUMO

BACKGROUND: Support for clinicians in human immunodeficiency virus (HIV) medicine is critical given national HIV-provider shortages. The US Department of Health and Human Services (DHHS) guidelines are comprehensive but complex to apply for antiretroviral therapy (ART) selection. Human immunodeficiency virus antiretroviral selection support and interactive search tool (HIV-ASSIST) (www.hivassist.com) is a free tool providing ART decision support that could augment implementation of clinical practice guidelines. METHODS: We conducted a randomized study of medical trainees at Johns Hopkins University, in which participants were asked to select an ART regimen for 10 HIV case scenarios through an electronic survey. Participants were randomized to receive either DHHS guidelines alone, or DHHS guidelines and HIV-ASSIST to support their decision making. ART selections were graded "appropriate" if consistent with DHHS guidelines, or concordant with regimens selected by HIV experts at 4 academic institutions. RESULTS: Among 118 trainees, participants randomized to receive HIV-ASSIST had a significantly higher percentage of appropriate ART selections compared to those receiving DHHS guidelines alone (percentage of appropriate responses in DHHS vs HIV-ASSIST arms: median [Q1, Q3], 40% [30%, 50%] vs 90% [80%, 100%]; P < .001). The effect was seen for all case types, but most pronounced for complex cases involving ART-experienced patients with ongoing viremia (DHHS vs HIV-ASSIST: median [Q1, Q3], 0% [0%, 33%] vs 100% [66%, 100%]). CONCLUSIONS: Trainees using HIV-ASSIST were significantly more likely to choose appropriate ART regimens compared to those using guidelines alone. Interactive decision support tools may be important to ensure appropriate implementation of HIV guidelines. CLINICAL TRIALS REGISTRATION: NCT04080765.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Fármacos Anti-HIV/uso terapêutico , Antirretrovirais/uso terapêutico , HIV , Infecções por HIV/tratamento farmacológico , Humanos , Seleção de Pacientes
10.
BMC Med Educ ; 21(1): 392, 2021 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-34294060

RESUMO

BACKGROUND: Despite its long-established importance, diagnostic reasoning (DR) education has suffered uneven implementation in medical education. The Clinical Problem Solvers (CPSolvers) podcast has emerged as a novel strategy to help teach DR through case conferences with expert diagnosticians and trainees. CPSolvers has 25,000 listeners in 147 countries. The aim of this study was to evaluate the podcast by eliciting the developers' goals of the podcast, then determining to what extent they aligned with the listeners' actual usage habits, features they valued, and perceptions of the podcast. METHODS: We conducted semi-structured interviews with 3 developers and 8 listeners from April-May 2020, followed by qualitative thematic analysis. RESULTS: Three major developer goals with sub-goals resulted: 1. To teach diagnostic reasoning in a case-based format by (1a) teaching schemas, (1b) modeling expert diagnostic reasoning, (1c) teaching clinical knowledge, and (1d) teaching diagnostic reasoning terminology. 2. To change the culture of medicine by (2a) promoting diversity, (2b) modeling humility and promoting psychological safety, and (2c) creating a fun, casual way to learn. 3. To democratize the teaching of diagnostic reasoning by leveraging technology. Listeners' usage habits, valued features, and perceptions overall strongly aligned with all these aspects, except for (1c) clinical knowledge, and (1d) diagnostic reasoning terminology. Listeners identified (1a) schemas, and (2c) promotion of psychological safety as the most valuable features of the podcast. CONCLUSION: CPSolvers has been perceived as a highly effective and novel way to disseminate DR education in the form of case conferences, serving as an alternative to traditional in-person case conferences suspended during COVID-19. CPSolvers combines many known benefits of in-person case conferences with a compassionate and entertaining teaching style, plus advantages of the podcasting medium - democratizing morning report for listeners around the world.


Assuntos
COVID-19 , Educação Médica , Visitas de Preceptoria , Humanos , Aprendizagem , SARS-CoV-2
11.
Clin Infect Dis ; 70(8): 1666-1674, 2020 04 10.
Artigo em Inglês | MEDLINE | ID: mdl-31185081

RESUMO

BACKGROUND: Understanding the changing epidemiology of Staphylococcus aureus bacteremia, as well as the variables associated with poor outcomes, can yield insight into potential interventions. METHODS: This study was a retrospective, observational cohort study of adult patients at an academic medical center in New York City who had S. aureus bloodstream infections between 1 January 2007 and 31 December 2015. Participants were divided into 3 periods: group 1 (2007-2009), group 2 (2010-2012), and group 3 (2013-2015) for trend analysis. All clinical strains were genotyped (spa.). The main outcome was 30-day all-cause mortality. RESULTS: There were 1264 episodes of methicillin-susceptible S. aureus (MSSA) and 875 episodes of methicillin-resistant S. aureus (MRSA) bacteremia, with a rising proportion due to MSSA (55% group 1; 59% group 2; 63% group 3; P = .03.) There were no significant changes in average age, gender, Charlson score, and distribution of strain genotypes. Mortality in MRSA infection was unchanged (25% group 1; 25% group 2; 26% group 3), while mortality in MSSA infection significantly declined (18% group 1; 18% group 2; 13% group 3). The average time to antistaphylococcal therapy (AST) in MSSA infection declined during the study (3.7 days group 1; 3.5 group 2; 2.2 group 3). In multivariate analysis, AST within 7 days of initial positive MSSA culture was associated with survival. CONCLUSIONS: Mortality in MSSA bloodstream infection is declining, associated with a decrease in time to targeted therapy. These results emphasize the potential for rapid diagnostics and early optimization of treatment to impact outcomes in MSSA bacteremia.


Assuntos
Bacteriemia , Staphylococcus aureus Resistente à Meticilina , Infecções Estafilocócicas , Adulto , Bacteriemia/epidemiologia , Estudos de Coortes , Humanos , Staphylococcus aureus Resistente à Meticilina/genética , Cidade de Nova Iorque , Estudos Retrospectivos , Infecções Estafilocócicas/tratamento farmacológico , Infecções Estafilocócicas/epidemiologia , Staphylococcus aureus/genética
12.
J Gen Intern Med ; 35(11): 3243-3247, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32661932

RESUMO

BACKGROUND: Few assessments capture the diagnostic impressions medical students form immediately following patient encounters. However, notes written for objective structured clinical examinations (OSCEs) allow learners to document their clinical reasoning in real time. The University of Illinois at Chicago College of Medicine (UIC-COM) has developed a rubric for scoring patient notes (PNs) in their OSCE for senior students. OBJECTIVE: To validate the UIC-COM PN Scoring Rubric as a measure of clinical reasoning by comparing PN scores from a similar exam at the Columbia University Vagelos College of Physicians and Surgeons (VP&S) to clinical rotation performance. DESIGN: Cross-sectional analysis. PARTICIPANTS: From a total of 146 third-year medical students who completed the OSCE at VP&S in spring 2017, we selected 60 at random, 20 from each tertile of clinical rotation performance. MAIN MEASURES: We scored these students' PNs using the rubric's four sections-Documentation, Differential Diagnosis, Justification, and Workup, each scored from 1 to 4-and calculated a composite score (maximum 100). We used one-way ANOVA to examine differences in scores between clinical rotation performance tertiles. KEY RESULTS: Students in the bottom, middle, and top clinical rotation performance tertiles had mean Documentation scores of 2.54, 2.63, and 2.88, respectively (p = 0.02, bottom vs. top tertile). Mean composite scores were 61.98, 64.05, and 67.86, respectively (p = 0.02, bottom vs. top tertile). CONCLUSIONS: We showed an association between PN scores and clinical rotation performance. Since clinical rotation grades incorporate multiple types of assessments of students' clinical reasoning skills, we believe that this correlation lends validity evidence to using the note-writing task as a measure of clinical reasoning. Future directions include expanding the task to different stages of learners, to real life patient encounters, and to formative rather than summative assessments of note-writing skills.


Assuntos
Educação de Graduação em Medicina , Estudantes de Medicina , Chicago , Competência Clínica , Estudos Transversais , Avaliação Educacional , Humanos , Redação
13.
J Public Health (Oxf) ; 42(3): 483-485, 2020 08 18.
Artigo em Inglês | MEDLINE | ID: mdl-32880394

RESUMO

As a global crisis, COVID-19 has underscored the challenge of disseminating evidence-based public health recommendations amidst a rapidly evolving, often uncensored information ecosystem-one fueled in part by an unprecedented degree of connected afforded through social media. In this piece, we explore an underdiscussed intersection between the visual arts and public health, focusing on the use of validated infographics and other forms of visual communication to rapidly disseminate accurate public health information during the COVID-19 pandemic. We illustrate our arguments through our own experience in creating a validated infographic for patients, now disseminated through social media and other outlets across the world in nearly 20 translations. Visual communication offers a creative and practical medium to bridge critical health literacy gaps, empower diverse patient communities through evidence-based information and facilitate public health advocacy during this pandemic and the 'new normal' that lies ahead.


Assuntos
Recursos Audiovisuais , Betacoronavirus , Gráficos por Computador , Infecções por Coronavirus/epidemiologia , Educação em Saúde/métodos , Pandemias , Pneumonia Viral/epidemiologia , COVID-19 , Humanos , Saúde Pública , SARS-CoV-2
14.
Mycoses ; 63(10): 1033-1046, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32740974

RESUMO

This review summarises both the recent and relevant studies about cryptococcal infections in haematologic malignancies and haematopoietic stem cell transplantation. Although uncommon in this patient population, this infection carries a high mortality, especially if left untreated. Given the limited data, we draw some conclusions with respect to management from the solid organ transplantation and HIV-infected literature. Herein, we discuss cryptococcosis with a particular attention to its background, epidemiology, risk factors, clinical presentation, diagnosis, treatment and prevention in this group.


Assuntos
Criptococose , Neoplasias Hematológicas/complicações , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Infecções Oportunistas Relacionadas com a AIDS/tratamento farmacológico , Infecções Oportunistas Relacionadas com a AIDS/microbiologia , Antifúngicos/uso terapêutico , Criptococose/diagnóstico , Criptococose/tratamento farmacológico , Criptococose/epidemiologia , Criptococose/patologia , Cryptococcus gattii/isolamento & purificação , Cryptococcus gattii/patogenicidade , Cryptococcus neoformans/isolamento & purificação , Cryptococcus neoformans/patogenicidade , Infecções por HIV/complicações , Humanos , Incidência , Meningite Criptocócica/diagnóstico , Meningite Criptocócica/tratamento farmacológico , Meningite Criptocócica/epidemiologia , Meningite Criptocócica/patologia , Mortalidade , Fatores de Risco , Virulência
17.
J Neurosci ; 34(2): 467-80, 2014 Jan 08.
Artigo em Inglês | MEDLINE | ID: mdl-24403147

RESUMO

The perirhinal cortex (PRC) is proposed to both represent high-order sensory information and maintain those representations across delays. These cognitive processes are required for recognition memory, which declines during normal aging. Whether or not advanced age affects the ability of PRC principal cells to support these dual roles, however, is not known. The current experiment recorded PRC neurons as young and aged rats traversed a track. When objects were placed on the track, a subset of the neurons became active at discrete locations adjacent to objects. Importantly, the aged rats had a lower proportion of neurons that were activated by objects. Once PRC activity patterns in the presence of objects were established, however, both age groups maintained these representations across delays up to 2 h. These data support the hypothesis that age-associated deficits in stimulus recognition arise from impairments in high-order stimulus representation rather than difficulty in sustaining stable activity patterns over time.


Assuntos
Envelhecimento/fisiologia , Memória/fisiologia , Reconhecimento Psicológico/fisiologia , Animais , Eletrofisiologia , Masculino , Ratos , Ratos Endogâmicos F344
19.
PLoS Negl Trop Dis ; 18(2): e0012004, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38408109

RESUMO

BACKGROUND: Pythiosis is a rare disease with high mortality, with over 94% of cases reported from Thailand and India. Prompt diagnosis and surgery improves patient outcomes. Therefore, continuing professional development (CPD) is essential for early recognition. However, a needs assessment related to a pythiosis CPD program has not been performed. OBJECTIVES: We conducted a needs assessment to develop a pythiosis CPD program. PATIENTS/METHODS: We conducted a survey study with 267 King Chulalongkorn Memorial Hospital residents (141 internal medicine (IM) residents and 126 surgery residents). A 30-item survey consisting of a knowledge assessment, demographic section, and an attitudes portion was distributed both electronically and via paper. The data was analyzed with descriptive and inferential statistics. RESULTS: Sixty-seven percent completed the survey (110/141 IM residents, 70/126 surgery residents). The mean score [95% confidence interval] on the knowledge assessment was 41.67% [39.64%-43.69%] across all objectives. The three domains with the highest scores were pythiosis risk factors (67.22% correct), microbiologic characteristics (50.83%), and radiographic interpretation (50.56%). The three domains with the lowest scores were laboratory investigation (15.00%), epidemiology (29.17%), and symptomatology (30.83%). Most participants noted that the program should be online with both synchronous and asynchronous sessions, with a preferred length of 60-90 minutes per session. CONCLUSION: The pythiosis CPD program should emphasize education regarding symptomatology, laboratory investigation, and epidemiology, all of which are critical for the early detection of pythiosis to decrease mortality from this devastating disease. Most respondents felt this program was necessary and should be implemented in a virtual blended format.


Assuntos
Pitiose , Animais , Humanos , Pitiose/diagnóstico , Pitiose/epidemiologia , Pitiose/terapia , Avaliação das Necessidades , Tailândia/epidemiologia , Inquéritos e Questionários , Fatores de Risco
20.
J Neurosci ; 32(46): 16331-44, 2012 Nov 14.
Artigo em Inglês | MEDLINE | ID: mdl-23152616

RESUMO

Age-related cognitive and behavioral slowing may be caused by changes in the speed of neural signaling or by changes in the number of signaling steps necessary to achieve a given function. In the mammalian cortex, neural communication is organized by a 30-100 Hz "gamma" oscillation. There is a putative link between the gamma frequency and the speed of processing in a neural network: the dynamics of pyramidal neuron membrane time constants suggest that synaptic integration is framed by the gamma cycle, and pharmacological slowing of gamma also slows reaction times on behavioral tasks. The present experiments identify reductions in a robust 40-70 Hz gamma oscillation in the aged rat medial frontal cortex. The reductions were observed in the form of local field potentials, later peaks in fast-spiking neuron autocorrelations, and delays in the spiking of inhibitory neurons following local excitatory signals. Gamma frequency did not vary with movement speed, but rats with slower gamma also moved more slowly. Gamma frequency age differences were not observed in hippocampus. Hippocampal CA1 fast-spiking neurons exhibited interspike intervals consistent with a fast (70-100 Hz) gamma frequency, a pattern maintained across theta phases and theta frequencies independent of fluctuations in the average firing rates of the neurons. We propose that an average lengthening of the cortical 15-25 ms gamma cycle is one factor contributing to age-related slowing and that future attempts to offset cognitive declines will find a target in the response of fast-spiking inhibitory neurons to excitatory inputs.


Assuntos
Envelhecimento/fisiologia , Comportamento Animal/fisiologia , Eletroencefalografia , Córtex Pré-Frontal/fisiologia , Descanso/fisiologia , Animais , Região CA1 Hipocampal/fisiologia , Tomada de Decisões/fisiologia , Eletrodos Implantados , Potenciais Evocados/fisiologia , Hipocampo/fisiologia , Masculino , Ratos , Ritmo Teta/fisiologia
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