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1.
BMC Health Serv Res ; 23(1): 1157, 2023 Oct 26.
Artigo em Inglês | MEDLINE | ID: mdl-37884981

RESUMO

BACKGROUND: International evidence suggests that an integrated multidisciplinary approach to diabetic foot management is necessary to prevent ulceration and progression to amputation. Many health systems have introduced policies or models of care supporting the introduction of this evidence into practice, but little is known about the experiences of those involved in implementation. This study addresses this gap by examining the experiences of podiatrists providing integrated diabetic foot care. METHODS: Between October 2017 and April 2018, an online survey comprising closed and open-ended questions on podiatrists' demographics, clinical activity, links with other services, continuous professional development activities and experiences of implementing the Model of Care was administered to podiatrists (n = 73) working for Ireland's Health Service Executive in the community and hospital setting. Data were analysed using descriptive statistics and qualitative content analysis. RESULTS: The response rate was 68% (n = 50), with 46% (n = 23), 38% (n = 19) and 16% (n = 8) working across hospital, community and both settings, respectively. Most reported treating high-risk patients (66%), those with active foot disease (61%) and educating people about the risk of diabetes to the lower limb (80%). Reported challenges towards integrated diabetic foot care include a perceived lack of awareness of the role of podiatry amongst other healthcare professionals, poor integration between hospital and community podiatry services, especially where new services had been developed, and insufficient number of podiatrists to meet service demands. CONCLUSION: Previous evidence has shown that there is often a gap between what is set out by a policy and what it looks like when delivered to service users. Results from the current study support this, highlighting that while most podiatrists work in line with national recommendations, there are specific gaps and challenges that need to be addressed to ensure successful policy implementation.


Assuntos
Diabetes Mellitus , Pé Diabético , Doenças do Pé , Podiatria , Humanos , Pé Diabético/epidemiologia , Pé Diabético/prevenção & controle , Irlanda/epidemiologia , Doenças do Pé/terapia , Inquéritos e Questionários
2.
Eur J Gen Pract ; 29(2): 2212904, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37248990

RESUMO

BACKGROUND: Access to testing during the first wave of the COVID-19 pandemic was limited, impacting patients with COVID-19-like symptoms. Current qualitative studies have been limited to one country or were conducted outside Europe. OBJECTIVES: To explore - in eight European countries - the experiences of patients consulting in primary care with COVID-19-like symptoms during the first wave of the pandemic. METHODS: Sixty-six semi-structured interviews, informed by a topic guide, were conducted by telephone or in person between April and July 2020. Patients with COVID-19-like symptoms were purposively recruited in primary care sites in eight countries and sampled based on age, gender, and symptom presentation. Deductive and inductive thematic analysis techniques were used to develop a framework representing data across settings. Data adequacy was attained by collecting rich data. RESULTS: Seven themes were identified, which described the experiences of patients consulting. Two themes are reported in this manuscript describing the role of COVID-19 testing in this experience. Patients described significant distress due to their symptoms, especially those at higher risk of complications from COVID-19, and those with severe symptoms. Patients wanted access to testing to identify the cause of their illness and minimise the burden of managing uncertainty. Some patients testing positive for COVID-19 assumed they would be immune from future infection. CONCLUSION: Patients experiencing novel and severe symptoms, particularly those with comorbidities, experienced a significant emotional and psychological burden due to concerns about COVID-19. Testing provided reassurance over health status and helped patients identify which guidance to follow. Testing positive for SARS-CoV-2 led to some patients thinking they were immune from future infection, thus influencing subsequent behaviour.


Assuntos
COVID-19 , Humanos , COVID-19/diagnóstico , SARS-CoV-2 , Pandemias , Teste para COVID-19 , Emoções
3.
BJGP Open ; 6(2)2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35031559

RESUMO

BACKGROUND: The impact of the COVID-19 pandemic on patients' and clinicians' perceptions of healthcare-seeking behaviour and delivery of care is unclear. The pandemic accelerated the use of remote care, and understanding its benefits and drawbacks may inform its implementation during current and future healthcare emergencies. AIM: To explore patients' and primary care professionals' (PCPs) experiences of primary care delivery in the first wave of the pandemic. DESIGN & SETTING: Qualitative study using semi-structured interviews in primary care in eight European countries (England, Ireland, Belgium, the Netherlands, Greece, Poland, Sweden, and Germany). METHOD: A total of 146 interviews were conducted with 80 PCPs and 66 patients consulting for respiratory tract infection (RTI) symptoms, in eight European countries. Data were collected between April and July 2020, and analysed using thematic analysis. RESULTS: It was found that patients accepted telemedicine when PCPs spent time to understand and address their concerns, but a minority preferred in-person consultations. PCPs felt that remote consultations created emotional distance between themselves and patients, and they reported having to manage diverse COVID-19-related medical and social concerns. CONCLUSION: Remote consultations for RTI symptoms may be acceptable long term if both groups are happy to use this format, but it is important that PCPs take time to address patients' concerns and provide safety-netting advice.

4.
Front Med (Lausanne) ; 8: 726319, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34568383

RESUMO

Background: Minimising primary care professionals' (PCPs) risk of SARS-CoV-2 infection is crucial to ensure their safety as well as functioning health care system. PCPs' perspectives on the support they needed in the early stages of a public health crisis can inform future preparedness. Aim: To understand PCPs' experiences of providing care during the COVID-19 pandemic, with focus on personal risk from COVID-19 and testing. Design and Setting: Qualitative study using semi-structured interviews with PCPs in England, Belgium, the Netherlands, Ireland, Germany, Poland, Greece and Sweden, between April and July 2020. Method: Interviews were analysed using a combination of inductive and deductive thematic analysis techniques. Results: Eighty interviews were conducted, showing that PCPs tried to make sense of their risk of both contracting and severity of COVID-19 by assessing individual risk factors and perceived effectiveness of Personal Protective Equipment (PPE). They had limited access to PPE yet continued providing care as their "duty." Some PCPs felt that they were put in high-risk situations when patients or colleagues were not flagging symptoms of COVID-19. Not having access to testing in the initial stages of the pandemic was somewhat accepted but when available, was valued. Conclusion: Access to adequate PPE and testing, as well as training for staff and education for patients about the importance of ensuring staff safety is crucial. Given PCPs' varied response in how they appraised personal risk and their tolerance for working, PCPs may benefit from the autonomy in deciding how they want to work during health emergencies.

5.
J Med Internet Res ; 23(9): e25364, 2021 09 03.
Artigo em Inglês | MEDLINE | ID: mdl-34477567

RESUMO

BACKGROUND: Urinary tract infections (UTIs) are one of the most common conditions in women. Current information on the presentation, management, and natural course of the infection is based on paper diaries filled out and subsequently posted by patients. OBJECTIVE: The aim of this study is to explore the feasibility of a smartphone app to assess the natural course and management of UTIs. METHODS: A smartphone app was developed to collect data from study participants presenting with symptoms of UTI in general practice. After initial demographic and treatment information, symptom severity was recorded by the patient after a reminder on their smartphone, which occurred twice daily for a period of 7 days or until symptom resolution. RESULTS: A total of 181 women aged 18-76 years downloaded the smartphone app. The duration of symptoms was determined from the results of 178 participants. All patients submitted a urine sample, most patients were prescribed an antibiotic (163/181, 90.1%), and 38.7% (70/181) of the patients had a positive culture. Moderately bad or worse symptoms lasted a mean of 3.8 (SD 3.2; median 4) days, and 70.2% (125/178) of the patients indicated that they were cured on day 4 after consultation. This compares with other research assessing symptom duration and management of UTIs using paper diaries. Patients were very positive about the usability of the smartphone app and often found the reminders supportive. On the basis of the feedback and the analysis of the data, some suggestions for improvement were made. CONCLUSIONS: Smartphone diaries for symptom scores over the course of infections are an efficient and acceptable means of collecting data in research.


Assuntos
Aplicativos Móveis , Infecções Urinárias , Antibacterianos/uso terapêutico , Estudos de Viabilidade , Feminino , Humanos , Smartphone , Infecções Urinárias/diagnóstico , Infecções Urinárias/tratamento farmacológico
6.
HRB Open Res ; 4: 50, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34504992

RESUMO

Background: Physical distancing measures (e.g., keeping a distance of two metres from others, avoiding crowded areas, and reducing the number of close physical contacts) continue to be among the most important preventative measures used to reduce the transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that causes coronavirus disease 2019 (COVID -19). Therefore, it is important to understand barriers and facilitators of physical distancing to help inform future public health campaigns. Methods: The current study aimed to qualitatively explore barriers and facilitators of physical distancing in the context of the COVID-19 pandemic using a qualitative interpretative design. Semi-structured one-to-one phone interviews were conducted with 25 participants aged 18+ years and living in the Republic of Ireland between September and October 2020. A purposive sampling strategy was used to maximise diversity in terms of age, gender, and socioeconomic status. Interviews were transcribed verbatim and analysed using inductive thematic analysis. Results: Analysis resulted in the development of six main themes related to barriers and facilitators of physical distancing: (1) Maintaining and negotiating close relationships; (2) Public environments support or discourage physical distancing; (3) Habituation to threat; (4) Taking risks to maintain well-being; (5) Personal responsibility to control the "controllables"; and (6) Confusion and uncertainty around government guidelines. Conclusions: Our study found that physical distancing measures are judged to be more or less difficult based on a number of internal and external psychosocial factors, including maintaining and negotiating close relationships, habituation to threat, risk compensation, structure of public environments, personal responsibility, and confusion or uncertainty around government guidelines. Given the diversity in our sample, it is clear that the identified barriers and facilitators vary depending on context and life stage. Messaging that targets sub-groups of the population may benefit from considering the identified themes in this analysis.

7.
Br J Gen Pract ; 71(709): e634-e642, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33979303

RESUMO

BACKGROUND: Primary care has a crucial role in responding to the COVID-19 pandemic as the first point of patient care and gatekeeper to secondary care. Qualitative studies exploring the experiences of healthcare professionals during the COVID-19 pandemic have mainly focused on secondary care. AIM: To gain an understanding of the experiences of European primary care professionals (PCPs) working during the first peak of the COVID-19 pandemic. DESIGN AND SETTING: An exploratory qualitative study, using semi-structured interviews in primary care in England, Belgium, the Netherlands, Ireland, Germany, Poland, Greece, and Sweden, between April and July 2020. METHOD: Interviews were audiorecorded, transcribed, and analysed using a combination of inductive and deductive thematic analysis techniques. RESULTS: Eighty interviews were conducted with PCPs. PCPs had to make their own decisions on how to rapidly transform services in relation to COVID-19 and non-COVID-19 care. Despite being overwhelmed with guidance, they often lacked access to practical training. Consequently, PCPs turned to their colleagues for moral support and information to try to quickly adjust to new ways of working, including remote care, and to deal with uncertainty. CONCLUSION: PCPs rapidly transformed primary care delivery despite a number of challenges. Representation of primary care at policy level and engagement with local primary care champions are needed to facilitate easy and coordinated access to practical information on how to adapt services, ongoing training, and access to appropriate mental health support services for PCPs. Preservation of autonomy and responsiveness of primary care are critical to preserve the ability for rapid transformation in any future crisis of care delivery.


Assuntos
COVID-19 , Pandemias , Bélgica , Atenção à Saúde , Inglaterra , Europa (Continente)/epidemiologia , Alemanha , Humanos , Irlanda , Países Baixos , Polônia , Atenção Primária à Saúde , Pesquisa Qualitativa , SARS-CoV-2 , Suécia
8.
BJGP Open ; 5(2)2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33234514

RESUMO

BACKGROUND: Urinary tract infections (UTIs) affect around 20% of the male population in their lifetime. The incidence of UTIs in men in the community is 0.9-2.4 cases per 1000 aged <55 years and 7.7 per 1000 aged ≥85 years. AIM: To evaluate the outcomes of randomised controlled trials (RCTs) comparing the effectiveness of different antimicrobial treatments and durations for uncomplicated UTIs in adult males in outpatient settings. METHOD: A systematic literature review of RCTs of adult male patients with an uncomplicated UTI treated with oral antimicrobials in any outpatient setting. The outcomes were symptom resolution within 2 weeks of starting treatment, duration until symptom resolution, clinical cure, bacteriological cure, and frequency of adverse events. RESULTS: From the 1052 abstracts screened, three provided sufficient information on outcomes. One study compared trimethoprim-sulfamethoxazole for 14 days (21 males) with 42 days (21 males). Fluoroquinolones were compared in the two other RCTs: lomefloxacin (10 males) with norfloxacin (11 males), and ciprofloxacin for 7 days (19 males) and 14 days (19 males). Combining the results from the three RCTs shows that for 75% males with a UTI (76/101) bacteriological cure was reported at the end of the study. Of the 59 patients receiving a fluoroquinolone, 57 (97%) reported bacteriological and clinical cure within 2 weeks after treatment. CONCLUSION: The evidence available is insufficient to make any recommendations in relation to type and duration of antimicrobial treatment for male UTIs. Sufficiently powered RCTs are needed to identify best treatment type and duration for male UTIs in primary care.

9.
Liver Transpl ; 26(2): 238-246, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31553123

RESUMO

The prevalence of advanced liver disease and listing for liver transplantation is increasing. Prior assessments of quality of care neither incorporate nor emphasize the patient perspective on quality of care, which may impact clinical outcomes. Our aim was to identify patients' perceptions on what constitutes high quality of care, comparing the findings to existing frameworks and assessments to determine if a patient-derived tool assessing quality of care could facilitate efforts to improve health care. We conducted semistructured interviews of patients wait-listed for liver transplantation, asking patients to describe the quality of their health care with a specific focus on how coordination, communication, office visits, hospitalizations, and cost affect their perceptions of the quality of their care. Data collection conducted concurrently with analyses determined emerging themes and saturation. Themes were mapped to an existing quality-of-care conceptual framework. Qualitative analysis revealed thematic saturation after 15 interviews, and an additional 15 interviews were analyzed that confirmed thematic saturation, maximizing the strength of the results. The 30 patients had a median age of 56 years (range, 32-72 years) and included 15 (50%) men. Although patients believed they received a high quality of care, which was substantiated on current existing measures, a qualitative analysis suggested that patient priorities emphasized 5 themes not currently assessed: managing expectations, providing education, responding to patient needs, executing the care plan efficiently, and utilizing interdisciplinary communication and coordination of care. In conclusion, transplant candidates perceived 5 themes that constitute quality of care, and existing quality-of-care measures do not assess these domains, suggesting a role for creating a patient-derived quality-of-care tool to improve health care and clinical outcomes.


Assuntos
Transplante de Fígado , Listas de Espera , Adulto , Idoso , Atenção à Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Pesquisa Qualitativa , Qualidade da Assistência à Saúde
10.
Res Dev Disabil ; 97: 103554, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31869773

RESUMO

OBJECTIVE: The aim of the review was to synthesise the literature on the types and effectiveness of interventions to improve sleep for individuals with Angelman Syndrome (AS). METHOD: Four databases were searched using predetermined search terms. Data extraction was performed on studies to examine (a) participant characteristics (b) study design (c) intervention procedures (d) intervention duration (e) dependent (outcome)variables. Intervention outcomes were categorised as positive, negative or and certainty of evidence as a measure of quality was reported for each study. RESULTS: Ten studies, including 54 participants with AS, met the inclusion criteria. Included studies comprised of both single subject designs (n = 3) and group-based designs (n = 7). Pharmacological interventions (n = 8) were the most commonly used followed by combined pharmacological and behavioral treatment (n = 1) or behavioral interventions as a single intervention (n = 1). Pharmacological interventions demonstrated both positive (n = 2) and mixed outcomes (n = 6) and were categorised at a suggestive level of evidence. Behavioral interventions as a sole intervention (n = 1) and as a combined intervention (with pharmacological intervention; n = 1) were found to have positive outcomes and was also categorised at a suggestive level of evidence. CONCLUSION: This review found provisional evidence but weak evidence for the effectiveness of behavioral interventions, and mixed outcomes for the effectiveness of Melatonin for the treatment of sleep problems in AS. All 10 studies only achieved a suggestive level of certainty, therefore, further high-quality research is needed to evaluate interventions for the treatment of sleep problems in this population.


Assuntos
Síndrome de Angelman/fisiopatologia , Terapia Comportamental/métodos , Depressores do Sistema Nervoso Central/uso terapêutico , Melatonina/uso terapêutico , Distúrbios do Início e da Manutenção do Sono/terapia , Síndrome de Angelman/complicações , Humanos , Sono , Distúrbios do Início e da Manutenção do Sono/complicações , Distúrbios do Início e da Manutenção do Sono/fisiopatologia , Transtornos do Sono-Vigília/complicações , Transtornos do Sono-Vigília/fisiopatologia , Transtornos do Sono-Vigília/terapia
11.
BJGP Open ; 2019 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-31615788

RESUMO

BACKGROUND: In general practice, males represent around 20% of the total number of urinary tract infection (UTI) consultations. The majority of UTI research focuses on the diagnosis and treatment of women with UTIs but there is little evidence on how male UTIs are treated. AIM: To better understand GPs' attitudes towards the diagnosis and treatment of male UTIs. This research aimed to support future investigations to determine best practice in diagnosis and treatment of male UTI. DESIGN AND SETTING: A qualitative interview study was carried out with 15 GPs across Ireland. METHOD: A topic guide was created to ensure consistency in interviews. The interviews were audiorecorded and transcribed verbatim. Transcripts were analysed using thematic analysis. RESULTS: Fifteen interviews with GPs were completed. Analysis indicated that GPs' knowledge of guidelines and implementation of them varied widely when deciding a treatment plan for a male presenting with UTI symptoms. There was clear consensus that male UTIs were uncommon and complicated to diagnose. Three GPs reported never treating a male UTI, while others reported treating <5 patients in their careers. There was an assumption that sexually transmitted infections (STI) take precedence in young males when presenting with similar symptoms. The use of antimicrobial treatment guidelines varied widely, in line with the interpretation of the origin and severity of symptoms. CONCLUSION: Male UTIs are perceived by GPs as rare and complicated. GPs expressed that patient age, resources, and guidelines available limited their confidence in diagnosing and treating male UTIs.

12.
J Spinal Cord Med ; 39(1): 3-12, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-24617497

RESUMO

BACKGROUND: A spinal cord injury disease management protocol (SCI DMP) was developed to address the unique medical, physical, functional, and psychosocial needs of those living with spinal cord injuries and disorders (SCI/D). The SCI DMP was piloted to evaluate DMP clinical content and to identify issues for broader implementation across the Veterans Affairs (VA) SCI System of Care. METHODS: Thirty-three patients with SCI/D from four VA SCI centers participated in a 6-month pilot. Patients received customized SCI DMP questions through a data messaging device (DMD). Nurse home telehealth care coordinators (HTCC) monitored responses and addressed clinical alerts daily. One site administered the Duke Severity of Illness (DUSOI) Checklist and Short Form-8 (SF-8™) to evaluate the changes in comorbidity severity and health-related quality of life while on the SCI DMP. RESULTS: Patients remained enrolled an average of 116 days, with a mean response rate of 56%. The average distance between patient's home and their VA SCI center was 59 miles. Feedback on SCI DMP content and the DMD included requests for additional clinical topics, changes in administration frequency, and adapting the DMD for functional impairments. Improvement in clinical outcomes was seen in a subset of patients enrolled on the SCI DMP. CONCLUSION: SCI HTCCs and patients reported that the program was most beneficial for newly injured patients recently discharged from acute rehabilitation that live far from specialty SCI care facilities. SCI DMP content changes and broader implementation strategies are currently being evaluated based on lessons learned from the pilot.


Assuntos
Protocolos Clínicos , Gerenciamento Clínico , Traumatismos da Medula Espinal/reabilitação , Telemedicina/métodos , Adulto , Idoso , Feminino , Acessibilidade aos Serviços de Saúde , Humanos , Masculino , Pessoa de Meia-Idade
13.
Int Urogynecol J ; 24(5): 759-62, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-22940842

RESUMO

INTRODUCTION AND HYPOTHESIS: Little evidence is available concerning the ability of women with urinary incontinence (UI) to properly assess their problem. This study compared women's assessments of their UI type with physicians' diagnoses. METHODS: Women referred to a urogynecology clinic for UI were asked to anonymously answer a short validated Questionnaire for Urinary Incontinence Diagnosis (QUID) before their physician visit. Women completed the QUID and read a brief explanation of its interpretation, after which they were asked to choose their UI type: stress, urge, or mixed. Physicians, blinded to patients' answers, conducted routine examinations and indicated their diagnoses of incontinence types. Sample size was representative of typical clinic volumes. Levels of agreement among physician diagnoses, QUID scores, and patient self-assessments of UI type were calculated with kappa (κ) statistics. Physician diagnosis was the gold standard. RESULTS: We had 497 patients return the questionnaire; 338 met inclusion criteria. Mean age was 53 (± 13) years. Levels of agreement among physician diagnoses and patients' assessments of UI type (κ=0.411, p<0.01) and QUID scores (κ=0.378, p<0.01) were significant. Significant level of agreement was found among QUID scores and patients' assessments of UI type (κ=0.497, p<0.001). CONCLUSIONS: With aid of a brief standardized questionnaire, women can accurately assess their UI type. This suggests women could be educated about UI via good-quality Internet health sites and choose appropriate conservative management options.


Assuntos
Autoavaliação Diagnóstica , Inquéritos e Questionários , Incontinência Urinária por Estresse/diagnóstico , Incontinência Urinária de Urgência/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Diagnóstico Diferencial , Feminino , Humanos , Pessoa de Meia-Idade , Educação de Pacientes como Assunto , Adulto Jovem
14.
Clin Infect Dis ; 49(9): 1305-11, 2009 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-19807276

RESUMO

BACKGROUND: Human immunodeficiency virus (HIV)-associated tuberculosis is difficult to treat, given the propensity for drug interactions between the rifamycins and the antiretroviral drugs. We examined the pharmacokinetics of rifabutin before and after the addition of lopinavir-ritonavir. METHODS: We analyzed 10 patients with HIV infection and active tuberculosis in a state tuberculosis hospital. Plasma was collected for measurement of rifabutin, the microbiologically active 25-desacetyl-rifabutin, and lopinavir by validated high-performance liquid chromatography assays. Samples were collected 2-4 weeks after starting rifabutin at 300 mg thrice weekly without lopinavir-ritonavir, 2 weeks after the addition of lopinavir-ritonavir at 400 and 100 mg, respectively, twice daily to rifabutin at 150 mg thrice weekly, and (if rifabutin plasma concentrations were below the normal range) 2 weeks after an increase in rifabutin to 300 mg thrice weekly with lopinavir-ritonavir. Noncompartmental and population pharmacokinetic analyses (2-compartment open model) were performed. RESULTS: Rifabutin at 300 mg without lopinavir-ritonavir produced a low maximum plasma concentration (C(max)) in 5 of 10 patients. After the addition of lopinavir-ritonavir to rifabutin at 150 mg, 9 of 10 had low C(max) values. Eight patients had dose increases to 300 mg of rifabutin with lopinavir-ritonavir. Most free rifabutin (unbound to plasma protein) C(max) values were below the tuberculosis minimal inhibitory concentration. For most patients, values for the area under the plasma concentration-time curve were as low or lower than those associated with treatment failure or relapse and with acquired rifamycin resistance in Tuberculosis Trials Consortium/US Public Health Service Study 23. One of the 10 patients experienced relapse with acquired rifamycin resistance. CONCLUSION: The recommended rifabutin doses for use with lopinavir-ritonavir may be inadequate in many patients. Monitoring of plasma concentrations is recommended.


Assuntos
Antibióticos Antituberculose/farmacocinética , Antivirais/farmacocinética , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Pirimidinonas/farmacocinética , Rifabutina/farmacocinética , Ritonavir/farmacocinética , Tuberculose/complicações , Tuberculose/tratamento farmacológico , Adulto , Antibióticos Antituberculose/sangue , Antibióticos Antituberculose/uso terapêutico , Antivirais/sangue , Antivirais/uso terapêutico , Interações Medicamentosas , Feminino , Humanos , Lopinavir , Masculino , Pessoa de Meia-Idade , Pirimidinonas/sangue , Pirimidinonas/uso terapêutico , Rifabutina/sangue , Rifabutina/uso terapêutico , Ritonavir/sangue , Ritonavir/uso terapêutico
15.
J Biol Chem ; 284(43): 29979-87, 2009 Oct 23.
Artigo em Inglês | MEDLINE | ID: mdl-19717569

RESUMO

Infection of a host cell by a retrovirus requires an initial interaction with a cellular receptor. For numerous gammaretroviruses, such as the gibbon ape leukemia virus, woolly monkey virus, feline leukemia virus subgroup B, feline leukemia virus subgroup T, and 10A1 murine leukemia virus, this receptor is the human type III sodium-dependent inorganic phosphate transporter, SLC20A1, formerly known as PiT1. Understanding the critical receptor functionalities and interactions with the virus that lead to successful infection requires that we first know the surface structure of the cellular receptor. Previous molecular modeling from the protein sequence, and limited empirical data, predicted a protein with 10 transmembrane helices. Here we undertake the biochemical approach of substituted cysteine accessibility mutagenesis to resolve the topology of this receptor in live cells. We discover that there are segments of the protein that are unexpectedly exposed to the outside milieu. By using information determined by substituted cysteine accessibility mutagenesis to set constraints in HMMTOP, a hidden Markov model-based transmembrane topology prediction method, we now propose a comprehensive topological model for SLC20A1, a transmembrane protein with 12 transmembrane helices and 7 extracellular regions, that varies from previous models and should permit approaches that define both virus interaction and transport function.


Assuntos
Vírus da Leucemia do Macaco Gibão , Modelos Moleculares , Receptores Virais/química , Proteínas Cotransportadoras de Sódio-Fosfato Tipo III/química , Animais , Transporte Biológico , Gatos , Linhagem Celular , Humanos , Hylobates , Camundongos , Mutagênese , Estrutura Secundária de Proteína/genética , Estrutura Terciária de Proteína/genética , Receptores Virais/genética , Receptores Virais/metabolismo , Proteínas Cotransportadoras de Sódio-Fosfato Tipo III/genética , Proteínas Cotransportadoras de Sódio-Fosfato Tipo III/metabolismo
16.
J Obstet Gynaecol Can ; 31(3): 247-253, 2009 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19416571

RESUMO

BACKGROUND: The current pyramidal system of health care delivery, in which subspecialized physicians with the most complete knowledge and expertise are difficult to access, is inefficient and ineffective at delivering the best care to the majority of patients. Urinary incontinence care exemplifies this problem. Patients can wait up to one year to see a urogynaecologist, regardless of the complexity of their problem. Many women who do not require subspecialized care could have their incontinence managed in a more timely fashion if they had access to education and conservative interventions via a new, more accessible model of care. METHODS: We studied a modification of urinary incontinence care that departed from the traditional methods of care delivery in two distinct ways. First, patients were permitted to refer themselves directly to the specialty care team. Second, standardized questionnaires and evaluation tools facilitated assessment and management of the patients by a continence educator and nurses, without direct contact between patient and physician. This step-wise model of care was compared with the traditional method of care delivery (medical model), in which the management of all patients was provided by a physician. RESULTS: Two hundred thirty-two women participated in this study: 154 in the step-wise arm and 78 in the medical model arm. Neither the demographics nor the pre-treatment incontinence severity of the two groups differed significantly. Patients in both groups showed significant improvement in all measures of urinary incontinence after treatment. Patients in the self-referral model experienced significantly better resolution of stress incontinence and irritated bladder symptoms. Their quality of life was also significantly better and their treatment satisfaction higher. CONCLUSION: The step-wise model of care delivery involving a continence advisor and nurses was as effective in the management of urinary incontinence as the traditional medical model.


Assuntos
Modelos Organizacionais , Incontinência Urinária/terapia , Feminino , Humanos , Pessoa de Meia-Idade , Satisfação do Paciente , Qualidade de Vida
17.
J Obstet Gynaecol Can ; 28(8): 700-712, 2006 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-17022910

RESUMO

OBJECTIVE: Urinary incontinence (UI) is a prevalent health issue that has significant detrimental effects on quality of life. The Internet offers a unique vehicle for incontinent women to access information that could facilitate conservative self-help therapy. An evaluation of Canadian websites offering female UI information was conducted to determine their quality and readability. METHODS: We evaluated websites using published general quality criteria for health sites and a quality assessment tool compiled by the authors for specific UI information derived from published, peer-reviewed clinical practice guidelines. Three health care professionals reviewed sites for quality, Canadian content, and interactivity. The readability of health information was also evaluated. RESULTS: Fifty-six Canadian sites (18 professional, 22 organizational, 16 commercial) were evaluated. Significant agreement was found among the raters' evaluations on all measures. For all sites, the mean scores were general quality, 9/14; specific UI quality, 30/122; reading ease, 37/100; grade level, 10.9. The median score for Canadian content was high, but for interactivity it was low. The only significant difference between site types was for general quality (F [2,165]=3.38, P=0.036). Post hoc Tukey's tests showed a significant difference between organizational and commercial sites, with organizational sites having higher general quality. CONCLUSION: Canadian websites providing female UI information have moderately high general quality, low specific UI information quality, minimal interactivity, and more than minimal Canadian content. The reading level of most sites is too high for average consumers. A webliography of the best sites has been developed to guide patients.


Assuntos
Educação em Saúde/métodos , Educação em Saúde/normas , Serviços de Informação/normas , Internet , Incontinência Urinária , Canadá , Bases de Dados Factuais , Feminino , Humanos , Disseminação de Informação/métodos , Incontinência Urinária por Estresse
18.
J Virol ; 80(6): 3104-7, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16501122

RESUMO

Recently, a new endogenous koala gammaretrovirus, designated KoRV, was isolated from koalas. The KoRV genome shares 78% nucleotide identity with another gammaretrovirus, gibbon ape leukemia virus (GALV). KoRV is endogenous in koalas, while GALV is exogenous, suggesting that KoRV predates GALV and that gibbons and koalas acquired the virus at different times from a common source. We have determined that subtle adaptive differences between the KoRV and GALV envelope genes account for differences in their receptor utilization properties. KoRV represents a unique example of a gammaretrovirus whose envelope has evolved to allow for its expanded host range and zoonotic potential.


Assuntos
Retrovirus Endógenos/classificação , Retrovirus Endógenos/patogenicidade , Gammaretrovirus/classificação , Gammaretrovirus/patogenicidade , Phascolarctidae/virologia , Sequência de Aminoácidos , Animais , Linhagem Celular , Retrovirus Endógenos/genética , Gammaretrovirus/genética , Humanos , Camundongos , Dados de Sequência Molecular , Células NIH 3T3 , Infecções por Retroviridae/veterinária , Infecções por Retroviridae/virologia , Infecções Tumorais por Vírus/veterinária , Infecções Tumorais por Vírus/virologia
19.
J Virol ; 79(14): 9332-6, 2005 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-15994829

RESUMO

Gammaretroviruses that enter cells via binding to a surface receptor use one of two fundamental mechanisms. In the first, binding of the virus particle to its cognate receptor is followed by fusion and internalization. The second, less common mechanism requires the addition of an accessory protein in order to achieve fusion and entry into the target cells; this protein is usually the soluble form of the envelope protein containing the receptor-binding domain (RBD). For some viruses, such as amphotropic murine leukemia virus (A-MLV), particles with fusion-defective envelope proteins can enter cells in the presence of their own RBD or that of another viral envelope, regardless of its cognate receptor, suggesting that these viruses share a common entry mechanism. A notable exception is gibbon ape leukemia virus (GALV). Fusion-impaired GALV envelope mutants can be trans-activated for infectivity only by GALV RBDs. Using dually functional GALV/A-MLV receptors, we examined the role of receptor with respect to which RBD could overcome fusion impaired virus entry.


Assuntos
Vírus da Leucemia do Macaco Gibão/fisiologia , Receptores Virais/fisiologia , Simportadores/fisiologia , Animais , Fusão de Membrana , Camundongos , Proteínas Cotransportadoras de Sódio-Fosfato
20.
Artigo em Inglês | MEDLINE | ID: mdl-15976987

RESUMO

To survey Canadian health care professionals about their willingness to offer elective cesarean delivery and to evaluate how their knowledge of obstetric-related pelvic-floor injury influences their practice. A voluntary questionnaire was distributed to health care professionals attending the 58th Annual Meeting of the Society of Obstetricians and Gynaecologists of Canada in 2002. Appropriate statistical analysis was used. One hundred and sixty-two questionnaires were completed. One hundred respondents were female (62%). Twenty-three percent (37/162) of respondents approved elective cesarean delivery after informed request in nulliparous women without an obstetrical indication. Males were more likely than females to perform cesarean delivery in these circumstances (34% versus 16%; OR 2.7, CI 1.2, 6.0). When questioned about the impact of mode of delivery on bladder and bowel continence, the number of respondents who answered "usually" or "always has a detrimental effect" were: vaginal birth, 16%; forceps, 20%; and cesarean delivery "reduces bladder and bowel problems", 44%. Males were more likely to emphasize a protective effect of cesarean delivery (55% versus 38%; OR 1.9, CI 1.0, 4.0). Health care professionals would opt for cesarean delivery for themselves when forceps delivery was the alternative more often than they would offer cesarean delivery to their patients (OR 1.98, CI 1.1, 3.5). While a significant number of women's health care professionals are prepared to offer cesarean delivery to nulliparous women, informed choice seems to motivate the offer rather than a conviction that cesarean delivery will protect the pelvic floor.


Assuntos
Atitude do Pessoal de Saúde , Cesárea/métodos , Tomada de Decisões , Pesquisas sobre Atenção à Saúde , Obstetrícia , Padrões de Prática Médica , Adulto , Idoso , Canadá , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Gravidez , Estudos Retrospectivos
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