Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 151
Filtrar
1.
J Biomed Inform ; 121: 103871, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34298155

RESUMO

BACKGROUND: Despite widespread use of electronic data capture (EDC) systems for research and electronic health records (EHR), most transfer of data between EHR and EDC systems is manual and error prone. Increased adoption of Health Level Seven Fast Healthcare Interoperability Resource (FHIR) application programming interfaces (APIs) in recent years by EHR systems has increased the availability of patient data for external applications such as REDCap. OBJECTIVE: Describe the development of the REDCap Clinical Data Interoperability Services (CDIS) module that provides seamless data exchange between the REDCap research EDC and any EHR system with a FHIR API. CDIS enables end users to independently set up their data collection projects, map EHR data to fields, and adjudicate data transfer without project-by-project involvement from Health Information Technology staff. METHODS: We identified two use cases for EHR data transfer into REDCap. Clinical Data Pull (CDP) automatically pulls EHR data into user-defined REDCap fields and replaces the workflow of having to transcribe or copy and paste data from the EHR. Clinical Data Mart (CDM) collects all specified data for a patient over a given time period and replaces the process of importing EHR data for registries from research databases. With an iterative process, we designed our access control, authentication, variable selection, and mapping interfaces in such a way that end users could easily set up and use CDIS. RESULTS: Since its release, the REDCap CDIS has been used to pull over 19.5 million data points for 82 projects at Vanderbilt University Medical Center. Software and documentation are available through the REDCap Consortium. CONCLUSIONS: The new REDCap Clinical Data and Interoperability Services (CDIS) module leverages the FHIR standard to enable real-time and direct data extraction from the EHR. Researchers can self-service the mapping and adjudication of EHR data into REDCap. The uptake of CDIS at VUMC and other REDCap consortium sites is improving the accuracy and efficiency of EHR data collection by reducing the need for manual transcription and flat file uploads.


Assuntos
Registros Eletrônicos de Saúde , Nível Sete de Saúde , Data Warehousing , Atenção à Saúde , Humanos , Fluxo de Trabalho
2.
Hong Kong Med J ; 25(6): 460-467, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31796645

RESUMO

INTRODUCTION: This study assessed the incidence of late rectal toxicities and evaluated potential predictive factors for late proctitis in patients treated with prostate-specific intensity-modulated radiotherapy in Hong Kong. METHODS: This retrospective longitudinal observational study included patients with localised prostate cancer who were treated with intensity-modulated radiation therapy in an oncology unit in Hong Kong between January 2007 and December 2011, and who had >1 year of follow-up. Clinical, pharmacological, and radiation parameters were recorded. Toxicities were measured by Common Terminology Criteria for Adverse Events version 4. RESULTS: In total, 232 patients were included in this analysis. The mean follow-up time was 7.3 ± 2.1 years and 46.5% of the patients had late rectal toxicities. Late proctitis occurred in 30.5% of patients; 25% of the patients with late proctitis exhibited grade ≥2 toxicity. Median onset times for late proctitis and rectal bleeding were 15 and 18.4 months, respectively. Multivariable regression showed increased odds for the occurrence of late proctitis in patients with older age (odds ratio [OR]=1.11, 95% confidence interval [CI]=1.04-1.19, P=0.003), higher V70 (OR=1.08, 95% CI=1.01-1.15, P=0.027), and presence of acute rectal toxicities (OR=4.47, 95% CI=2.37-8.43, P<0.001). Antiplatelet use was not significantly associated with the occurrence of late proctitis (OR=1.98, 95% CI=0.95-4.14, P=0.07). CONCLUSIONS: The incidence of late rectal toxicities was considerable among patients in this study. Clinicians should consider the possibility of late proctitis for patients with older age, acute rectal toxicities, and higher V70. High doses to rectal volumes should be limited because of the significant association with V70.


Assuntos
Anormalidades Induzidas por Radiação/epidemiologia , Neoplasias da Próstata/radioterapia , Doenças Retais/epidemiologia , Reto/efeitos da radiação , Anormalidades Induzidas por Radiação/etiologia , Idoso , Hong Kong/epidemiologia , Humanos , Incidência , Estudos Longitudinais , Masculino , Dosagem Radioterapêutica , Radioterapia de Intensidade Modulada , Doenças Retais/etiologia , Estudos Retrospectivos
3.
Epidemiol Infect ; 146(3): 345-353, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29338805

RESUMO

We performed a systematic review and meta-analyses of studies assessing tuberculosis (TB) patient-related risk factors for transmission of Mycobacterium tuberculosis infection. Meta-analyses were conducted for sputum smear-positivity, lung cavitation and HIV seropositivity of index patients with both crude and adjusted odds ratios (AORs) pooled using random effect models. Thirty-seven studies were included in the review. We found that demographic characteristics such as age and sex were not significant risk factors, while behaviours such as smoking and alcohol intake were associated with infectiousness although inconsistently. Treatment delay of >28 days was a significant predictor of greater infectiousness. Contacts of sputum smear-positive index patients were found to be more likely to be infected than contacts of sputum smear-negative patients, with a pooled AOR of 2.15 (95% confidence interval (CI) 1.47-3.17, I 2 = 38%). Similarly, contacts of patients with the cavitary disease were around twice as likely to be infected as contacts of patients without cavitation (pooled AOR 1.9, 95% CI 1.26-2.84, I 2 = 63%). In contrast, HIV seropositive patients were associated with few contact infections than HIV seronegative patients (AOR 0.45, 95% CI 0.26-0.80, I 2 = 52%). In conclusion, behavioural and clinical characteristics of TB patients can be used to identify highly infectious patients for targeted interventions.


Assuntos
Bebidas Alcoólicas/efeitos adversos , Mycobacterium tuberculosis/fisiologia , Fumar/efeitos adversos , Tuberculose/transmissão , Humanos , Fatores de Risco
4.
Eur J Cancer Care (Engl) ; 27(4): e12857, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29767417

RESUMO

This study examined concordances of cancer patients' received and caregivers' provided support and dyadic relationship quality, and their predictive utility in prospective psychological distress and well-being. A total of 83 Chinese cancer patient-caregiver dyads were recruited in two government-funded hospitals in Hong Kong. Participants reported received (patient)/provided (caregiver) emotional and instrumental support and dyadic relationship quality within 6 months after diagnosis (T1), and anxiety and depressive symptoms, positive affect and life satisfaction at both T1 and 6-month follow-up (T2). We hypothesised that concordances at T1 would predict lower psychological distress and higher psychological well-being among both patients and caregivers at T2. Concordances were indicated by Gwet's AC2 scores (possible range = -1.00 to 1.00) and as follows: emotional support: M = 0.92, SD = 0.12, range = 0.25-1.00; instrumental support: M = 0.92, SD = 0.16, range = 0.08-1.00; and relationship quality: M = 0.63, SD = 0.27, range = -0.31 to 1.00. Hierarchical multiple regressions revealed that T1 concordances of perceived emotional and instrumental support and dyadic relationship quality positively predicted T2 anxiety symptoms [F(9, 74) = 6.725, ∆R2  = .031, p < .001)] and state positive affect [F(9, 74) = 3.436, ∆R2  = .042, p = .001)], whereas inversely predicted T2 depressive symptoms [F(9, 74) = 4.189, ∆R2  = .042, p < .01)]. Significant associations were found only among caregivers, but not patients.


Assuntos
Ansiedade/psicologia , Cuidadores/psicologia , Depressão/psicologia , Relações Interpessoais , Neoplasias/enfermagem , Apoio Social , Estresse Psicológico/psicologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Hong Kong , Humanos , Masculino , Saúde Mental , Pessoa de Meia-Idade , Neoplasias/psicologia , Adulto Jovem
5.
Epidemiol Infect ; 145(2): 397-400, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-27776576

RESUMO

Overwhelming post-splenectomy infection (OPSI) is a serious complication of asplenia and is associated with encapsulated organisms, most commonly Streptococcus pneumoniae, but also Haemophilus influenzae and Neisseria meningitidis. We aimed to estimate the risk of infection in this patient group. We reviewed data collected by the Victorian Spleen Registry in Australia. On registration, all patients are asked about significant infections requiring admission to hospital for intravenous antibiotics; those requiring admission to ICU were defined as OPSI. In the 3274 asplenic patients registered 492 patients reported at least one episode of infection. There were 47 episodes of OPSI requiring intensive care (incidence rate 1·11/1000 patient-years). The risk of OPSI was highest in older patients, and there were no statistically significant differences in incidence by reason for splenectomy except for a higher rate in patients with medical hyposplenia. This study reinforces that post-splenectomy infection is a clinically significant but uncommon complication, and that fulminant infection requiring intensive care is a minority of all infections.


Assuntos
Bacteriemia/epidemiologia , Bacteriemia/patologia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/patologia , Esplenectomia/efeitos adversos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Medição de Risco , Vitória/epidemiologia , Adulto Jovem
6.
Epidemiol Infect ; 145(5): 1006-1017, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-28065205

RESUMO

We reviewed key attributes (flexibility, data quality and timeliness) of Australia's National Notifiable Diseases Surveillance System (NNDSS) over its first 21 years. Cases notified to NNDSS from 1991 to 2011 were examined by jurisdiction (six states and two territories) and sub-period to describe changes in the number of notifiable diseases, proportion of cases diagnosed using PCR tests, data quality (focusing on data completeness), and notification delays. The number of notifiable diseases increased from 37 to 65. The proportion of cases diagnosed by PCR increased from 1% (1991-1997) to 49% (2005-2011). Indigenous status was complete for only 44% notifications (jurisdictional range 19-87%). Vaccination status was complete for 62% (jurisdictional range 32-100%) and country of acquisition for 24% of relevant cases. Data completeness improved over the study period with the exception of onset date. Median time to notification was 8 days (interquartile range 4-17 days, jurisdictional range 5-15 days); this decreased from 11 days (1991-1997) to 5 days (2005-2011). NNDSS expanded during the study period. Data completeness and timeliness improved, likely related to mandatory laboratory reporting and electronic data transfer. A nationally integrated electronic surveillance system, including electronic laboratory reporting, would further improve infectious disease surveillance in Australia.


Assuntos
Doenças Transmissíveis/epidemiologia , Notificação de Doenças/métodos , Monitoramento Epidemiológico , Pesquisa sobre Serviços de Saúde , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Austrália/epidemiologia , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Pessoa de Meia-Idade , Adulto Jovem
7.
Epidemiol Infect ; 145(14): 3047-3055, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28868995

RESUMO

Central line-associated bloodstream infections (CLABSIs) in intensive care units (ICUs) result in poor clinical outcomes and increased costs. Although frequently regarded as preventable, infection risk may be influenced by non-modifiable factors. The objectives of this study were to evaluate organisational factors associated with CLABSI in Victorian ICUs to determine the nature and relative contribution of modifiable and non-modifiable risk factors. Data captured by the Australian and New Zealand Intensive Care Society regarding ICU-admitted patients and resources were linked to CLABSI surveillance data collated by the Victorian Healthcare Associated Infection Surveillance System between 1 January 2010 and 31 December 2013. Accepted CLABSI surveillance methods were applied and hospital/patient characteristics were classified as 'modifiable' and 'non-modifiable', enabling longitudinal Poisson regression modelling of CLABSI risk. In total, 26 ICUs were studied. Annual CLABSI rates were 1·72, 1·37, 1·00 and 0·93/1000 CVC days for 2010-2013. Of non-modifiable factors, the number of non-invasively ventilated patients standardised to total ICU bed days was found to be independently associated with infection (RR 1·07; 95% CI 1·01-1·13; P = 0·030). Modelling of modifiable risk factors demonstrated the existence of a policy for mandatory ultrasound guidance for central venous catheter (CVC) localisation (RR 0·51; 95% CI 0·37-0·70; P < 0·001) and increased number of sessional specialist full-time equivalents (RR 0·52; 95% CI 0·29-0·93; P = 0·027) to be independently associated with protection against infection. Modifiable factors associated with reduced CLABSI risk include ultrasound guidance for CVC localisation and increased availability of sessional medical specialists.


Assuntos
Bacteriemia/epidemiologia , Infecções Relacionadas a Cateter/epidemiologia , Infecção Hospitalar/epidemiologia , Unidades de Terapia Intensiva , Idoso , Bacteriemia/microbiologia , Infecções Relacionadas a Cateter/microbiologia , Infecção Hospitalar/microbiologia , Humanos , Incidência , Pessoa de Meia-Idade , Risco , Vitória/epidemiologia
8.
Epidemiol Infect ; 145(7): 1451-1460, 2017 05.
Artigo em Inglês | MEDLINE | ID: mdl-28162130

RESUMO

Australia's National Immunisation Program (NIP) provides free influenza vaccination for children at high risk of severe influenza; a pilot-funded programme for vaccine in all children aged 6 months to <5 years in one of eight states, has seen poor vaccine impact, related to recent vaccine safety concerns. This retrospective review examined influenza hospitalizations in children aged <16 years from three seasons (2011-2013) at two paediatric hospitals on opposite sides of the country. Comparisons of this cohort were made with state-based data on influenza-coded hospitalizations and national immunization register data on population-level immunization coverage. Of 740 hospitalizations, the majority were aged <5 years (476/740, 64%), and a substantial proportion (57%) involved healthy children, not currently funded for influenza vaccine. Intensive care unit admission occurred in 8·5%, and 1·5% of all children developed encephalitis. Use of antiviral therapy was uncommon (20·5%) and decreasing. Of those hospitalized, only 5·0% of at-risk children, who are currently eligible for free vaccine, and 0·7% of healthy children were vaccinated prior to hospitalization. This was consistent with low population-wide estimates of influenza vaccine uptake. It highlights the need to examine alternative strategies, such as universally funded paediatric influenza vaccination, to address disease burden in Australian children.


Assuntos
Influenza Humana/epidemiologia , Vigilância da População , Adolescente , Austrália/epidemiologia , Criança , Pré-Escolar , Feminino , Hospitalização/estatística & dados numéricos , Hospitais Pediátricos , Humanos , Lactente , Recém-Nascido , Influenza Humana/virologia , Masculino , Estudos Retrospectivos , Estações do Ano
9.
J Antimicrob Chemother ; 71(6): 1715-22, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-26895771

RESUMO

BACKGROUND: The presence of antimicrobial allergy designations ('labels') often substantially reduces prescribing options for affected patients, but the frequency, accuracy and impacts of such labels are unknown. METHODS: The National Antimicrobial Prescribing Survey (NAPS) is an annual de-identified point prevalence audit of Australian inpatient antimicrobial prescribing using standardized definitions of guideline compliance, appropriateness and indications. Data were extracted for 2 years (2013-14) and compared for patients with an antimicrobial allergy label (AAL) and with no AAL (NAAL). RESULTS: Among 21 031 patients receiving antimicrobials (33 421 prescriptions), an AAL was recorded in 18%, with inappropriate antimicrobial use significantly higher in the AAL group versus the NAAL group (OR 1.12, 95% CI 1.05-1.22, P < 0.002). Patterns of antimicrobial use were significantly influenced by AAL, with lower ß-lactam use (AAL versus NAAL; OR 0.47, 95% CI 0.43-0.50, P < 0.001) and higher quinolone (OR 2.07, 95% CI 1.83-2.34, P < 0.0001), glycopeptide (OR 1.59, 95% CI 1.38-1.83, P < 0.0001) and carbapenem (OR 1.74, 95% CI 1.43-2.13, P < 0.0001) use. In particular, among immunocompromised patients, AAL was associated with increased rates of inappropriate antimicrobial use (OR 1.68, 95% CI 1.21-2.30, P = 0.003), as well as increased use of quinolones (OR 1.88, 95% CI 1.16-3.03, P = 0.02) and glycopeptides (OR 1.82, 95% CI 1.17-2.84, P = 0.01). CONCLUSIONS: AALs are common and appear to be associated with higher rates of inappropriate prescribing and increased use of broad-spectrum antimicrobials. Improved accuracy in defining AALs is likely to be important for effective antimicrobial stewardship (AMS), with efforts to 'de-label' inappropriate AAL patients a worthwhile feature of future AMS initiatives.


Assuntos
Anti-Infecciosos/efeitos adversos , Anti-Infecciosos/uso terapêutico , Hipersensibilidade a Drogas , Rotulagem de Medicamentos , Prescrições de Medicamentos , Uso de Medicamentos , Padrões de Prática Médica , Austrália , Humanos , Pacientes Internados
10.
Epidemiol Infect ; 144(15): 3263-3277, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27586156

RESUMO

We reviewed the first 21 years (1991-2011) of Australia's National Notifiable Diseases Surveillance System (NNDSS). All nationally notified diseases (except HIV/AIDS and Creutzfeldt-Jakob disease) were analysed by disease group (n = 8), jurisdiction (six states and two territories), Indigenous status, age group and notification year. In total, 2 421 134 cases were analysed. The 10 diseases with highest notification incidence (chlamydial infection, campylobacteriosis, varicella zoster, hepatitis C, influenza, pertussis, salmonellosis, hepatitis B, gonococcal infection, and Ross River virus infection) comprised 88% of all notifications. Annual notification incidence was 591 cases/100 000, highest in the Northern Territory (2598/100 000) and in children aged <5 years (698/100 000). A total of 8·4% of cases were Indigenous Australians. Notification incidence increased by 6·4% per year (12% for sexually transmissible infections and 15% for vaccine-preventable diseases). The number of notifiable diseases also increased from 37 to 65. The number and incidence of notifications increased throughout the study period, partly due to addition of diseases to the NNDSS and increasing availability of sensitive diagnostic tests. The most commonly notified diseases require a range of public health responses addressing high-risk sexual and drug-use behaviours, food safety and immunization. Our results highlight populations with higher notification incidence that might require tailored public health interventions.


Assuntos
Doenças Transmissíveis/epidemiologia , Notificação de Doenças , Austrália/epidemiologia , Doenças Transmissíveis/etiologia , Doenças Transmissíveis/transmissão , Notificação de Doenças/estatística & dados numéricos , Humanos
11.
Epidemiol Infect ; 144(5): 1065-74, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26449769

RESUMO

To identify hospital-level factors associated with post-cardiac surgical pneumonia for assessing their impact on standardized infection rates (SIRs), we studied 43 691 patients in a cardiac surgery registry (2001-2011) in 16 hospitals. In a logistic regression model for pneumonia following cardiac surgery, associations with hospital characteristics were quantified with adjustment for patient characteristics while allowing for clustering of patients by hospital. Pneumonia rates varied from 0·7% to 12·4% across hospitals. Seventy percent of variability in the pneumonia rate was attributable to differences in hospitals in their long-term rates with the remainder attributable to within-hospital differences in rates over time. After adjusting for patient characteristics, the pneumonia rate was found to be higher in hospitals with more registered nurses (RNs)/100 intensive-care unit (ICU) admissions [adjusted odds ratio (aOR) 1·2, P = 0·006] and more RNs/available ICU beds (aOR 1·4, P < 0·001). Other hospital characteristics had no significant association with pneumonia. SIRs calculated on the basis of patient characteristics alone differed substantially from the same rates calculated on the basis of patient characteristics and the hospital characteristic of RNs/100 ICU admissions. Since SIRs using patient case-mix information are important for comparing rates between hospitals, the additional allowance for hospital characteristics can impact significantly on how hospitals compare.


Assuntos
Procedimentos Cirúrgicos Cardíacos/efeitos adversos , Infecção Hospitalar/epidemiologia , Hospitais/estatística & dados numéricos , Pneumonia/epidemiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Austrália/epidemiologia , Infecção Hospitalar/microbiologia , Infecção Hospitalar/virologia , Hospitalização/estatística & dados numéricos , Humanos , Modelos Logísticos , Pessoa de Meia-Idade , Nova Zelândia/epidemiologia , Pneumonia/microbiologia , Pneumonia/virologia
12.
Intern Med J ; 46(4): 479-93, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27062204

RESUMO

The incidence of Clostridium difficile infection (CDI) continues to rise, whilst treatment remains problematic due to recurrent, refractory and potentially severe nature of disease. The treatment of C. difficile is a challenge for community and hospital-based clinicians. With the advent of an expanding therapeutic arsenal against C. difficile since the last published Australasian guidelines, an update on CDI treatment recommendations for Australasian clinicians was required. On behalf of the Australasian Society of Infectious Diseases, we present the updated guidelines for the management of CDI in adults and children.


Assuntos
Clostridioides difficile , Infecções por Clostridium/epidemiologia , Infecções por Clostridium/terapia , Gerenciamento Clínico , Guias de Prática Clínica como Assunto/normas , Sociedades Médicas/normas , Adulto , Australásia/epidemiologia , Austrália/epidemiologia , Clostridioides difficile/isolamento & purificação , Infecções por Clostridium/diagnóstico , Doenças Transmissíveis/diagnóstico , Doenças Transmissíveis/epidemiologia , Doenças Transmissíveis/terapia , Humanos , Nova Zelândia/epidemiologia , Sociedades Médicas/tendências
13.
Eur J Clin Microbiol Infect Dis ; 34(8): 1589-92, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25920492

RESUMO

The objective of this paper is to describe paediatric infectious diseases consultations across Australia and New Zealand. We surveyed infectious diseases physicians at 51 hospitals over a period of 2 weeks in 2012. Compared with adult consults, paediatric consults were more frequently received from general paediatricians/physicians and intensive care, yet less frequently from surgeons and emergency. Respiratory, skin/soft tissue and bone/joint infections were the most frequent consultations in children. These data demonstrate the breadth of formal infectious diseases consults in children. Differences between paediatric and infectious diseases consultations need to be considered when planning both paediatric and adult physician training and future curriculum development.


Assuntos
Doenças Transmissíveis/diagnóstico , Doenças Transmissíveis/tratamento farmacológico , Encaminhamento e Consulta , Adulto , Austrália , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Nova Zelândia , Estudos Prospectivos
14.
Eur J Clin Microbiol Infect Dis ; 34(11): 2275-85, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26363637

RESUMO

Although long-term azithromycin decreases exacerbation frequency in bronchiectasis, increased macrolide resistance is concerning. We investigated macrolide resistance determinants in a secondary analysis of a multicenter randomized controlled trial. Indigenous Australian children living in remote regions and urban New Zealand Maori and Pacific Islander children with bronchiectasis were randomized to weekly azithromycin (30 mg/kg) or placebo for up to 24 months and followed post-intervention for up to 12 months. Nurses administered and recorded medications given and collected nasopharyngeal swabs 3-6 monthly for culture and antimicrobial susceptibility testing. Nasopharyngeal carriage of Haemophilus influenzae and Moraxella catarrhalis was significantly lower in azithromycin compared to placebo groups, while macrolide-resistant Streptococcus pneumoniae and Staphylococcus aureus carriage was significantly higher. Australian children, compared to New Zealand children, had higher carriage overall, significantly higher carriage of macrolide-resistant bacteria at baseline (16/38 versus 2/40 children) and during the intervention (69/152 versus 22/239 swabs), and lower mean adherence to study medication (63 % versus 92 %). Adherence ≥70 % (versus <70 %) in the Australian azithromycin group was associated with lower carriage of any pathogen [odds ratio (OR) 0.19, 95 % confidence interval (CI) 0.07-0.53] and fewer macrolide-resistant pathogens (OR 0.34, 95 % CI 0.14-0.81). Post-intervention (median 6 months), macrolide resistance in S. pneumoniae declined significantly in the azithromycin group, from 79 % (11/14) to 7 % (1/14) of positive swabs, but S. aureus strains remained 100 % macrolide resistant. Azithromycin treatment, the Australian remote setting, and adherence <70 % were significant independent determinants of macrolide resistance in children with bronchiectasis. Adherence to treatment may limit macrolide resistance by suppressing carriage.


Assuntos
Antibacterianos/farmacologia , Azitromicina/uso terapêutico , Bactérias/efeitos dos fármacos , Infecções Bacterianas/microbiologia , Farmacorresistência Bacteriana , Macrolídeos/farmacologia , Nasofaringe/microbiologia , Antibacterianos/uso terapêutico , Austrália , Bactérias/isolamento & purificação , Infecções Bacterianas/tratamento farmacológico , Bronquiectasia/complicações , Portador Sadio/microbiologia , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Macrolídeos/uso terapêutico , Masculino , Nova Zelândia , Ilhas do Pacífico , Placebos/administração & dosagem , Grupos Populacionais
15.
Intern Med J ; 45(5): 563-76, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25955462

RESUMO

Encephalitis is a complex neurological syndrome caused by inflammation of the brain parenchyma. The management of encephalitis is challenging because: the differential diagnosis of encephalopathy is broad; there is often rapid disease progression; it often requires intensive supportive management; and there are many aetiologic agents for which there is no definitive treatment. Patients with possible meningoencephalitis are often encountered in the emergency care environment where clinicians must consider differential diagnoses, perform appropriate investigations and initiate empiric antimicrobials. For patients who require admission to hospital and in whom encephalitis is likely, a staged approach to investigation and management is preferred with the potential involvement of multiple medical specialties. Key considerations in the investigation and management of patients with encephalitis addressed in this guideline include: Which first-line investigations should be performed?; Which aetiologies should be considered possible based on clinical features, risk factors and radiological features?; What tests should be arranged in order to diagnose the common causes of encephalitis?; When to consider empiric antimicrobials and immune modulatory therapies?; and What is the role of brain biopsy?


Assuntos
Encefalite/diagnóstico , Imunoterapia/métodos , Adulto , Austrália/epidemiologia , Criança , Consenso , Encefalite/epidemiologia , Encefalite/imunologia , Encefalite/terapia , Feminino , Guias como Assunto , Humanos , Incidência , Masculino , Nova Zelândia/epidemiologia , Fatores de Risco
16.
Genet Mol Res ; 14(4): 13779-90, 2015 Oct 29.
Artigo em Inglês | MEDLINE | ID: mdl-26535693

RESUMO

The US2 protein has been reported to contribute to duck enteritis virus (DEV) infection; however, its kinetics and localization during infection, and whether it is a component of virion, have not been previously reported. To elucidate the function of DEV US2, US2 was amplified by polymerase chain reaction (PCR) and inserted into pET-32a(+); this was expressed, the recombinant US2 protein was purified, and a polyclonal antibody generated. In addition, the kinetics and localization of the US2 gene and protein were determined by quantitative real-time fluorescent PCR, ganciclovir (GCV), and cycloheximide (CHX) treatment, western-blot, and indirect immunofluorescence assay. The packaging of US2 into DEV virions was revealed by a protease protection assay. US2 was found to be transcribed 24 h post-infection (pi) and peaked at 72 h pi; the US2 protein was detected 48 h pi, except in the presence of GCV or CHX. US2 was packed into virions and also localized to the plasma membrane and cytoplasm in infected cells. The results showed that the DEV US2 is a late gene, and that its encoding protein could be a tegument component localized mainly in the cytoplasm. This study provides useful data for the further analysis of DEV US2, including an explanation for the genetic conservation among alphaherpesviruses.


Assuntos
Mardivirus/genética , Proteínas do Envelope Viral/genética , Animais , Linhagem Celular , Patos , Fibroblastos , Expressão Gênica , Mardivirus/efeitos dos fármacos , Transporte Proteico , Proteínas Recombinantes , Proteínas do Envelope Viral/isolamento & purificação , Proteínas do Envelope Viral/metabolismo , Vírion
17.
Transpl Infect Dis ; 16(6): 887-96, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25298044

RESUMO

UNLABELLED: Infections remain important contributors to mortality in hematopoietic stem cell transplantation (HSCT). METHOD: We studied the evolving epidemiology and trends in susceptibility of bacterial and Candida isolates at an Australian HSCT center. A total of 528 HSCTs in 508 patients were performed from April 2001 to May 2010. A total of 605 isolates were eligible for study inclusion; 318 (53%) were gram-positive, 268 (44%) were gram-negative, and 19 (3%) were Candida species. RESULTS: The most common site for isolates was blood (380 isolates, 63%). Staphylococcus aureus was the most common gram-positive organism (n = 107, 34%), but trends to increasing coagulase-negative staphylococci (P = 0.002) and vancomycin-resistant Enterococcus (P < 0.001) were observed. Escherichia coli was the most common gram-negative isolate (n = 74, 28%). Fluoroquinolone resistance increased with widespread use of protocol fluoroquinolone prophylaxis (P = 0.001). Carbapenem resistance was found in 44% of Pseudomonas or Acinetobacter isolates. Bloodstream infection with a multidrug-resistant organism (odds ratio 3.61, 95% confidence interval: 1.40-9.32, P = 0.008) was an independent predictor of mortality at 7 days after a positive blood culture. CONCLUSIONS: Antimicrobial resistance is an increasing problem in this vulnerable patient population, and not only has an impact on choice of empiric therapy for febrile neutropenia but also on mortality.


Assuntos
Antibacterianos/farmacologia , Antifúngicos/farmacologia , Farmacorresistência Bacteriana , Farmacorresistência Fúngica , Transplante de Células-Tronco Hematopoéticas , Adolescente , Adulto , Idoso , Bactérias/classificação , Bactérias/efeitos dos fármacos , Bactérias/isolamento & purificação , Candida/efeitos dos fármacos , Candida/isolamento & purificação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Tempo , Adulto Jovem
18.
Intern Med J ; 44(6): 568-74, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25083531

RESUMO

BACKGROUND: Antimicrobial stewardship programmes aim to optimise use of antibiotics and are now mandatory in all Australian hospitals. AIM: We aimed to identify barriers to and enablers of appropriate antimicrobial prescribing among hospital doctors. METHODS: Two paper-based and one web-based surveys were administered at three Australian university teaching hospitals from March 2010 to May 2011. The 18-item questionnaire recorded doctors' level of experience, their knowledge regarding the use of common antimicrobials and their attitudes regarding antimicrobial prescribing. Local survey modifications allowed inclusion of specific questions on: infections in intensive care unit patients, clinical microbiology and use of local guidelines. RESULTS: The respondents (n = 272) were comprised of 96 (35%) registrars, 67 (25%)residents, 57 (21%) interns and 47 (17%) consultant hospital doctors. Forty-one per cent were working in a medical specialty. Identified barriers included: gaps in antimicrobial prescribing knowledge (especially among interns), a lack of awareness about which antimicrobials were restricted and a reliance on senior colleagues to make antimicrobial prescribing decisions. Enablers of optimal prescribing included: an acknowledgement of the need for assistance in prescribing and reported readiness to consult national prescribing guidelines. These results were used to help guide and prioritise interventions to improve prescribing practices. CONCLUSION: A transferable knowledge and attitudes survey tool can be used to highlight barriers and facilitators to optimal hospital antimicrobial prescribing in order to inform tailored antimicrobial stewardship interventions.


Assuntos
Anti-Infecciosos/uso terapêutico , Atitude do Pessoal de Saúde , Conhecimentos, Atitudes e Prática em Saúde , Prescrição Inadequada/psicologia , Corpo Clínico Hospitalar/psicologia , Padrões de Prática Médica/estatística & dados numéricos , Centros de Atenção Terciária/estatística & dados numéricos , Cuidados Críticos/estatística & dados numéricos , Uso de Medicamentos , Fidelidade a Diretrizes/estatística & dados numéricos , Pesquisas sobre Atenção à Saúde , Humanos , Prescrição Inadequada/prevenção & controle , Prescrição Inadequada/estatística & dados numéricos , Unidades de Terapia Intensiva , Internato e Residência , Modelos Psicológicos , Guias de Prática Clínica como Assunto , Queensland , Encaminhamento e Consulta , Inquéritos e Questionários , Vitória
19.
Intern Med J ; 44(12b): 1389-97, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25482747

RESUMO

Healthcare-associated fungal outbreaks impose a substantial economic burden on the health system and typically result in high patient morbidity and mortality, particularly in the immunocompromised host. As the population at risk of invasive fungal infection continues to grow due to the increased burden of cancer and related factors, the need for hospitals to employ preventative measures has become increasingly important. These guidelines outline the standard quality processes hospitals need to accommodate into everyday practice and at times of healthcare-associated outbreak, including the role of antifungal stewardship programmes and best practice environmental sampling. Specific recommendations are also provided to help guide the planning and implementation of quality processes and enhanced surveillance before, during and after high-risk activities, such as hospital building works. Areas in which information is still lacking and further research is required are also highlighted.


Assuntos
Microbiologia do Ar , Aspergilose/prevenção & controle , Aspergillus/crescimento & desenvolvimento , Infecção Hospitalar/prevenção & controle , Exposição Ambiental/prevenção & controle , Arquitetura Hospitalar/normas , Antifúngicos , Aspergilose/transmissão , Lista de Checagem , Consenso , Infecção Hospitalar/microbiologia , Ambiente Controlado , Filtração/instrumentação , Guias como Assunto , Humanos , Hospedeiro Imunocomprometido , Controle de Infecções , Educação de Pacientes como Assunto
20.
Genet Mol Res ; 13(4): 8329-41, 2014 Oct 20.
Artigo em Inglês | MEDLINE | ID: mdl-25366727

RESUMO

Riemerella anatipestifer (RA) CH-1, a highly virulent field strain, was isolated and identified by our laboratory. The gldJ gene was conserved in RA, and it had a typical TATA promoter region and AU-rich sequence within the 5' untranslated region. The GldJ protein was an outer-membrane lipoprotein with a signal peptide cleavage site between amino acids 20 and 21. GldJ was also a member of proteins involved in gliding motility. The RA GldJ protein had 16 phosphorylation sites and 4 N-glycosylation sites. These functional sites played an important role in the posttranslational modification of the GldJ protein. In addition, the GldJ protein of RA CH-1 had strong immunogenicity. Fifteen B-cell epitopes were identified in the GldJ protein, which might be a good biological material for the development of a subunit vaccine and diagnostic reagents. The GldJ protein also had the activity of formylglycine-generating sulfatase enzyme. The 3-dimensional structure models of GldJ were constructed based on 2 templates using the SwissModel automatic modeling mode in the SWISS-MODEL workplace. Here, we characterized the RA gldJ gene and GldJ protein to contribute to the functional annotation for the GldJ protein.


Assuntos
Proteínas de Bactérias/genética , Proteínas de Bactérias/metabolismo , Riemerella/genética , Riemerella/metabolismo , Sequência de Aminoácidos , Proteínas de Bactérias/química , Proteínas de Bactérias/imunologia , Códon , Epitopos de Linfócito B/química , Epitopos de Linfócito B/imunologia , Glicosilação , Modelos Moleculares , Dados de Sequência Molecular , Fases de Leitura Aberta , Fosforilação , Conformação Proteica , Domínios e Motivos de Interação entre Proteínas
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA