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1.
J Pain Symptom Manage ; 66(4): 351-360.e1, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37433418

RESUMO

CONTEXT: Emotion regulation by the physician can influence the effectiveness of serious illness conversations. The feasibility of multimodal assessment of emotion regulation during these conversations is unknown. OBJECTIVES: To develop and assess an experimental framework for evaluating physician emotion regulation during serious illness conversations. METHODS: We developed and then assessed a multimodal assessment framework for physician emotion regulation using a cross-sectional, pilot study on physicians trained in the Serious Illness Conversation Guide (SICG) in a simulated, telehealth encounter. Development of the assessment framework included a literature review and subject matter expert consultations. Our predefined feasibility endpoints included: an enrollment rate of ≥60% of approached physicians, >90% completion rate of survey items, and <20% missing data from wearable heart rate sensors. To describe physician emotion regulation, we performed a thematic analysis of the conversation, its documentation, and physician interviews. RESULTS: Out of 12 physicians approached, 11 (92%) SICG-trained physicians enrolled in the study: five medical oncology and six palliative care physicians. All 11 completed the survey (100% completion rate). Two sensors (chest band, wrist sensor) had <20% missing data during study tasks. The forearm sensor had >20% missing data. The thematic analysis found that physicians': 1) overarching goal was to move beyond prognosis to reasonable hope; 2) tactically focused on establishing a trusting, supportive relationship; and 3) possessed incomplete awareness of their emotion regulation strategies. CONCLUSION: Our novel, multimodal assessment of physician emotion regulation was feasible in a simulated SICG encounter. Physicians exhibited an incomplete understanding of their emotion regulation strategies.


Assuntos
Regulação Emocional , Médicos , Humanos , Relações Médico-Paciente , Estudos Transversais , Projetos Piloto , Médicos/psicologia , Comunicação
2.
Curr Opin Psychol ; 50: 101583, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-37209624

RESUMO

This article reviews recent research in masculinity studies, highlighting theoretical approaches and topical examinations of men's masculinity in relation to feminism. It shows a historical shift from masculinity making to categorical interests of men. The first examines journals explicitly aligned with critical feminism, where men are viewed as the cause of women's harm. Journals only broadly aligned with feminism examine men with more variance, considering both privilege and harm. Journals not explicitly aligned with feminism make room for problems that men face, and how masculinity is shifting to be less problematic.


Assuntos
Feminismo , Masculinidade , Masculino , Humanos , Feminino , Bolsas de Estudo
3.
J Cancer Educ ; 38(4): 1296-1303, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-36637713

RESUMO

Annual lung cancer screening (LCS) is recommended for individuals at high risk for lung cancer. However, primary care provider-initiated discussions about LCS and referrals for screening are low overall, particularly among Black or African Americans and other minoritized racial and ethnic groups. Disparities also exist in receiving provider advice to quit smoking. Effective methods are needed to improve provider knowledge about LCS and tobacco-related disparities, and to provide resources to achieve equity in LCS rates. We report the feasibility and impact of pairing a self-directed Lung Cancer Health Disparities (HD) Web-based course with the National Training Network Lung Cancer Screening (LuCa) course on primary care providers' knowledge about LCS and the health disparities associated with LCS. In a quasi-experimental study, primary care providers (N = 91) recruited from the MedStar Health System were assigned to complete the LuCa course only vs. the LuCa + HD courses. We measured pre-post-LCS-related knowledge and opinions about the courses. The majority (60.4%) of providers were resident physicians. There was no significant difference between groups on post-test knowledge (p > 0.05). However, within groups, there was an improvement in knowledge from pre- to post-test (LuCa only (p = 0.03); LuCa + HD (p < 0.001)). The majority of providers (81%) indicated they planned to improve their screening and preventive practices after having reviewed the educational modules. These findings provide preliminary evidence that this e-learning course can be used to educate providers on LCS, smoking cessation, and related disparities impacting patients.


Assuntos
Neoplasias Pulmonares , Abandono do Hábito de Fumar , Humanos , Abandono do Hábito de Fumar/métodos , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/prevenção & controle , Detecção Precoce de Câncer/métodos , Atenção Primária à Saúde , Internet
4.
PLoS One ; 17(8): e0272740, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35930603

RESUMO

Uninsured or underinsured individuals with cancer are likely to experience financial hardship, including forgoing healthcare or non-healthcare needs such as food, housing, or utilities. This study evaluates the association between health insurance coverage and financial hardship among cancer survivors during the COVID-19 pandemic. This cross-sectional analysis used Patient Advocate Foundation (PAF) survey data from May to July 2020. Cancer survivors who previously received case management or financial aid from PAF self-reported challenges paying for healthcare and non-healthcare needs during the COVID-19 pandemic. Associations between insurance coverage and payment challenges were estimated using Poisson regression with robust standard errors, which allowed for estimation of adjusted relative risks (aRR). Of 1,437 respondents, 74% had annual household incomes <$48,000. Most respondents were enrolled in Medicare (48%), 22% in employer-sponsored insurance, 13% in Medicaid, 6% in an Affordable Care Act (ACA) plan, and 3% were uninsured. Approximately 31% of respondents reported trouble paying for healthcare during the COVID-19 pandemic. Respondents who were uninsured (aRR 2.58, 95% confidence interval [CI] 1.83-3.64), enrolled in an ACA plan (aRR 1.86, 95% CI 1.28-2.72), employer-sponsored insurance (aRR 1.70, 95% CI 1.23-2.34), or Medicare (aRR 1.49, 95% CI 1.09-2.03) had higher risk of trouble paying for healthcare compared to Medicaid enrollees. Challenges paying for non-healthcare needs were reported by 57% of respondents, with 40% reporting trouble paying for food, 31% housing, 28% transportation, and 20% internet. In adjusted models, Medicare and employer-sponsored insurance enrollees were less likely to have difficulties paying for non-healthcare needs compared to Medicaid beneficiaries. Despite 97% of our cancer survivor sample being insured, 31% and 57% reported trouble paying for healthcare and non-healthcare needs during the COVID-19 pandemic, respectively. Greater attention to both medical and non-medical financial burden is needed given the economic pressures of the COVID-19 pandemic.


Assuntos
COVID-19 , Sobreviventes de Câncer , Neoplasias , Idoso , COVID-19/epidemiologia , Estudos Transversais , Estresse Financeiro/epidemiologia , Humanos , Cobertura do Seguro , Seguro Saúde , Pessoas sem Cobertura de Seguro de Saúde , Medicare , Neoplasias/epidemiologia , Pandemias , Patient Protection and Affordable Care Act , Estados Unidos/epidemiologia
5.
Front Oncol ; 11: 690454, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34395255

RESUMO

INTRODUCTION: Cancer-related employment disruption contributes to financial toxicity and associated clinical outcomes through income loss and changes in health insurance and may not be uniformly experienced. We examined racial/ethnic differences in the financial consequences of employment disruption. METHODS: We surveyed a national sample of cancer patients employed at diagnosis who had received assistance from a national nonprofit about the impact of cancer diagnosis and treatment on employment. We used logistic regression models to examine racial/ethnic differences in income loss and changes in health insurance coverage. RESULTS: Of 619 cancer patients included, 63% identified as Non-Hispanic/Latinx (NH) White, 18% as NH Black, 9% as Hispanic/Latinx, 5% as other racial/ethnic identities, and 5% unreported. Over 83% reported taking a significant amount of time off from work during cancer diagnosis and treatment, leading to substantial income loss for 64% and changes in insurance coverage for 31%. NH Black respondents had a 10.2 percentage point (95% CI: 4.8 - 19.9) higher probability of experiencing substantial income loss compared to NH White respondents, and Hispanic or Latinx respondents had a 12.4 percentage point (95% CI: 0.3 - 24.5) higher probability compared to NH White respondents, controlling for clinical characteristics (i.e., cancer type, stage and age at diagnosis, and time since diagnosis). Similarly, NH Black respondents had a 9.3 percentage point (95% CI: -0.7 - 19.3) higher probability of experiencing changes in health insurance compared to NH White respondents, and Hispanic or Latinx respondents had a 10.0 percentage point (95% CI: -3.0 - 23.0) higher probability compared to NH White respondents. DISCUSSION: Compared with NH White respondents, NH Black and Hispanic/Latinx respondents more commonly reported employment-related income loss and health insurance changes. Given documented racial/ethnic differences in job types, benefit generosity, and employment protections as a result of historic marginalization, policies to reduce employment disruption and its associated financial impact must be developed with a racial equity lens.

6.
Neurology ; 97(7): 334-339, 2021 08 17.
Artigo em Inglês | MEDLINE | ID: mdl-33986141

RESUMO

Telehealth services complement in-person neurologic care. The American Academy of Neurology supports patient access to telehealth services regardless of location, coverage for telehealth services by all subscriber benefits and insurance, equitable provider reimbursement, simplified state licensing requirements easing access to virtual care, and expanding telehealth research and quality initiatives. The roles and responsibilities of providers should be clearly delineated in telehealth service models.


Assuntos
Acessibilidade aos Serviços de Saúde/normas , Neurologia/normas , Sociedades Médicas/normas , Telemedicina/economia , Telemedicina/normas , Humanos , Neurologia/economia , Neurologia/organização & administração , Telemedicina/organização & administração , Estados Unidos
7.
Am J Hosp Palliat Care ; 36(5): 408-416, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30541333

RESUMO

Whole-person care is a new paradigm for serious illness, but few programs have been robustly studied. We sought to test the effect of LifeCourse (LC), a person-centered program for patients living with serious illness, on health-care utilization, care experience, and quality of life, employing a quasi-experimental design with a Usual Care (UC) comparison group. The study was conducted 2012 to 2017 at an upper-Midwest not-for-profit health-care system with outcomes measured every 3 months until the end of life. Enrolled patients (N = 903) were estimated to be within 3 years of end of life and diagnosed with 1+ serious illness. Exclusion criteria included hospice enrollment at time of screening or active dying. Community health workers (CHWs) delivered standardized monthly 1-hour home visits based on palliative care guidelines and motivational interviewing to promote patients' physical, psychosocial, and financial well-being. Primary outcomes included health-care utilization and patient- and caregiver-experience and quality of life. Patients were elderly (LC 74, UC 78 years) and primarily non-Hispanic, white, living at home with cardiovascular disease as the primary diagnosis (LC 69%, UC 57%). A higher proportion of LC patients completed advance directives (N = 173, 38%) than UC patients (N = 66, 15%; P < .001). LifeCourse patients who died spent more days in hospice (88 ± 191 days) compared to UC patients (44 ± 71 days; P = .018). LifeCourse patients reported greater improvements than UC in communication as part of the care experience ( P = .016). Implementation of person-centered programs delivered by CHWs is feasible; inexpensive upstream expansion of palliative care models can yield benefits for patients and caregivers. Trial Registration: Trial NCT01746446 was registered on November 27, 2012 at ClinicalTrials.gov .


Assuntos
Cuidadores/psicologia , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Assistência Centrada no Paciente/organização & administração , Qualidade de Vida , Assistência Terminal/organização & administração , Planejamento Antecipado de Cuidados/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Agentes Comunitários de Saúde/organização & administração , Feminino , Cuidados Paliativos na Terminalidade da Vida/organização & administração , Humanos , Masculino , Pessoa de Meia-Idade , Entrevista Motivacional , Cuidados Paliativos/organização & administração , Satisfação do Paciente , Fatores Socioeconômicos , Estados Unidos
8.
Patient Educ Couns ; 101(9): 1518-1537, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29655876

RESUMO

BACKGROUND: Uncertainty tolerance (UT) is thought to be a characteristic of individuals that influences various outcomes related to health, healthcare, and healthcare education. We undertook a systematic literature review to evaluate the state of the evidence on UT and its relationship to these outcomes. METHODS: We conducted electronic and bibliographic searches to identify relevant studies examining associations between UT and health, healthcare, or healthcare education outcomes. We used standardized tools to assess methodological quality and analyzed the major findings of existing studies, which we organized and classified by theme. RESULTS: Searches yielded 542 potentially relevant articles, of which 67 met inclusion criteria. Existing studies were heterogeneous in focus, setting, and measurement approach, were largely cross-sectional in design, and overall methodological quality was low. UT was associated with various trainee-centered, provider-centered, and patient-centered outcomes which were cognitive, emotional, and behavioral in nature. UT was most consistently associated with emotional well-being. CONCLUSIONS: Uncertainty tolerance is associated with several important trainee-, provider-, and patient-centered outcomes in healthcare and healthcare education. However, low methodological quality, study design limitations, and heterogeneity in the measurement of UT limit strong inferences about its effects, and addressing these problems is a critical need for future research.


Assuntos
Atenção à Saúde , Pessoal de Saúde/psicologia , Avaliação de Resultados em Cuidados de Saúde , Incerteza , Saúde , Mão de Obra em Saúde , Humanos
9.
Am J Hosp Palliat Care ; 35(2): 266-274, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28413927

RESUMO

BACKGROUND: Informal, unpaid caregivers shoulder much of the care burden for individuals with serious illness. As part of a project to create an innovative model of supportive care for serious illness, a series of user interviews were conducted, forming the basis for this article. OBJECTIVE: To understand both individual and interpersonal aspects of caregiving for serious illness. METHODS: Twelve semistructured group interviews were conducted with patients, families, and professionals as part of a larger study of late-life serious illness. Transcript data were analyzed with descriptive coding, and then coded material was analyzed to elicit major themes and subthemes. RESULTS: A total of 73 individuals participated in group interview sessions. Using descriptive coding, quotes were assigned to first-order codes of rewards, challenges, and a category of learnings and adaptations. Subthemes of reward included gratitude, a sense of accomplishment or mastery, and closeness in personal relationships. The most oft-cited challenges included emotional and physical stresses of caregiving and feeling unprepared or unsupported in caregiving. Reflecting on their experiences, caregivers cited new ways in which they had learned to be creative, to show assertiveness and advocacy, and to create personal balance in a demanding situation. CONCLUSIONS: The experience of caregiving is a life-altering journey as individuals rise to challenges and reflect on the rewards. Caregivers described intensive caregiving, often without acknowledgment or understanding of their role from the health-care system. This invisibility created its own iatrogenic caregiving challenge. The identified themes suggest avenues of meaningful caregiver support that bear further exploration.


Assuntos
Cuidadores/psicologia , Assistência Terminal/psicologia , Efeitos Psicossociais da Doença , Feminino , Humanos , Relações Interpessoais , Entrevistas como Assunto , Masculino , Apoio Social
10.
Br J Sociol ; 69(4): 1293-1312, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29219166

RESUMO

While a number of investigations have examined how gay Muslim men view homosexuality in relation to religious Western homophobia, this research constitutes the first account of the experiences of self-identified gay men living in an African, Muslim nation, where same-sex sex is both illegal and actively persecuted. We interviewed 28 gay men living in Tunisia in order to understand how they assimilate their sexual, religious and ethnic identities within a highly homophobic culture. Utilizing notions of homoerasure and homohysteria (McCormack and Eric Anderson ,b), and examining the intersection of identity conflict and new social movement theory, we highlight four strategies that participants use to negotiate the dissonance of living with conflicting identities in a context of religious homophobia: (1) privileging their Islamic identities and rejecting homosexuality as a legitimate sexual identity; (2) rejecting Islam and accepting homosexuality as a legitimate sexual identity; (3) interpreting Islam to be supportive of homosexuality; and (4) creating a non-penetrative homosexuality to be compatible with literal Qur'anic interpretations. We discuss the multiple difficulties these men face in relation to religious intolerance and ethnic heteronormativity, and reflect upon the possibilities and obstacles of using Western identity politics towards the promotion of social justice within a framework of growing homohysteria.


Assuntos
Identidade de Gênero , Homofobia/psicologia , Homossexualidade Masculina/psicologia , Islamismo/psicologia , Religião e Sexo , Adolescente , Adulto , Humanos , Entrevistas como Assunto , Masculino , Casamento/legislação & jurisprudência , Pessoa de Meia-Idade , Política , Mudança Social , Tunísia , Adulto Jovem
11.
West J Emerg Med ; 18(4): 640-646, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28611885

RESUMO

INTRODUCTION: The emergency medical evaluation of psychiatric patients presenting to United States emergency departments (ED), usually termed "medical clearance," often varies between EDs. A task force of the American Association for Emergency Psychiatry (AAEP), consisting of physicians from emergency medicine, physicians from psychiatry and a psychologist, was convened to form consensus recommendations for the medical evaluation of psychiatric patients presenting to U.S.EDs. METHODS: The task force reviewed existing literature on the topic of medical evaluation of psychiatric patients in the ED and then combined this with expert consensus. Consensus was achieved by group discussion as well as iterative revisions of the written document. The document was reviewed and approved by the AAEP Board of Directors. RESULTS: Eight recommendations were formulated. These recommendations cover various topics in emergency medical examination of psychiatric patients, including goals of medical screening in the ED, the identification of patients at low risk for co-existing medical disease, key elements in the ED evaluation of psychiatric patients including those with cognitive disorders, specific language replacing the term "medical clearance," and the need for better science in this area. CONCLUSION: The evidence indicates that a thorough history and physical examination, including vital signs and mental status examination, are the minimum necessary elements in the evaluation of psychiatric patients. With respect to laboratory testing, the picture is less clear and much more controversial.


Assuntos
Medicina de Emergência/métodos , Anamnese , Transtornos Mentais/diagnóstico , Exame Físico , Testes Psicológicos , Doença Aguda , Comitês Consultivos , Doença Crônica , Comorbidade , Consenso , Serviço Hospitalar de Emergência , Serviços de Emergência Psiquiátrica/métodos , Humanos , Programas de Rastreamento/métodos , Estados Unidos
12.
Transgenic Res ; 26(4): 501-514, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28466411

RESUMO

Eastern gamagrass (Tripsacum dactyloides L.) belongs to the same tribe of the Poaceae family as maize (Zea mays L.) and grows naturally in the same region where maize is commercially produced in the USA. Although no evidence exists of gene flow from maize to eastern gamagrass in nature, experimental crosses between the two species were produced using specific techniques. As part of environmental risk assessment, the possibility of transgene flow from maize to eastern gamagrass populations in nature was evaluated with the objectives: (1) to assess the seeds of eastern gamagrass populations naturally growing near commercial maize fields for the presence of a transgenic glyphosate-tolerance gene (cp4 epsps) that would indicate cross-pollination between the two species, and (2) to evaluate the possibility of interspecific hybridization between transgenic maize used as male parent and eastern gamagrass used as female parent. A total of 46,643 seeds from 54 eastern gamagrass populations collected in proximity of maize fields in Illinois, USA were planted in a field in 2014 and 2015. Emerged seedlings were treated with glyphosate herbicide and assessed for survival. An additional 48,000 seeds from the same 54 eastern gamagrass populations were tested for the presence of the cp4 epsps transgene markers using TaqMan® PCR method. The results from these trials showed that no seedlings survived the herbicide treatment and no seed indicated presence of the herbicide tolerant cp4 epsps transgene, even though these eastern gamagrass populations were exposed to glyphosate-tolerant maize pollen for years. Furthermore, no interspecific hybrid seeds were produced from 135 hand-pollination attempts involving 1529 eastern gamagrass spikelets exposed to maize pollen. Together, these results indicate that there is no evidence of gene flow from maize to eastern gamagrass in natural habitats. The outcome of this study should be taken in consideration when assessing for environmental risks regarding the consequence of gene flow from transgenic maize to its wild relatives.


Assuntos
Hibridização Genética , Plantas Geneticamente Modificadas/genética , Poaceae/genética , Zea mays/genética , Animais , Fluxo Gênico/genética , Plantas Geneticamente Modificadas/crescimento & desenvolvimento , Poaceae/crescimento & desenvolvimento , Polinização/genética , Sementes/genética , Sementes/crescimento & desenvolvimento , Zea mays/crescimento & desenvolvimento
13.
Theor Popul Biol ; 107: 39-51, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26450523

RESUMO

We develop a computational framework for addressing pedigree inference problems using small numbers (80-400) of single nucleotide polymorphisms (SNPs). Our approach relaxes the assumptions, which are commonly made, that sampling is complete with respect to the pedigree and that there is no genotyping error. It relies on representing the inferred pedigree as a factor graph and invoking the Sum-Product algorithm to compute and store quantities that allow the joint probability of the data to be rapidly computed under a large class of rearrangements of the pedigree structure. This allows efficient MCMC sampling over the space of pedigrees, and, hence, Bayesian inference of pedigree structure. In this paper we restrict ourselves to inference of pedigrees without loops using SNPs assumed to be unlinked. We present the methodology in general for multigenerational inference, and we illustrate the method by applying it to the inference of full sibling groups in a large sample (n=1157) of Chinook salmon typed at 95 SNPs. The results show that our method provides a better point estimate and estimate of uncertainty than the currently best-available maximum-likelihood sibling reconstruction method. Extensions of this work to more complex scenarios are briefly discussed.


Assuntos
Biologia Computacional/métodos , Marcadores Genéticos/genética , Linhagem , Salmão/genética , Algoritmos , Animais , Teorema de Bayes , Simulação por Computador , Genótipo , Funções Verossimilhança , Cadeias de Markov , Polimorfismo de Nucleotídeo Único , Irmãos
14.
Am J Surg ; 210(6): 1095-102; discussion 1102-3, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26482512

RESUMO

BACKGROUND: The novel oral anticoagulants (NOACs) apixaban, rivaroxaban, and dabigatran are indicated for the treatment of nonvalvular atrial fibrillation, but their use in patients with postoperative atrial fibrillation (POAF) is less well defined. METHODS: All patients undergoing isolated coronary artery bypass grafting from 2013 to 2015 (n = 598) were studied. Patients with POAF anticoagulated with either warfarin or NOACs were evaluated for differences in length of stay, blood product use, bleeding, and cost of therapy. RESULTS: There was no significant difference between the NOAC and warfarin group for any of the clinical outcomes evaluated. Time to therapeutic anticoagulation was significantly longer with warfarin. Neither group had a major bleeding event during the initial hospitalization, but 2 patients in the warfarin group had delayed major bleeding complications. Total costs were significantly reduced in patients treated with NOACs. CONCLUSIONS: Both NOACs and warfarin are safe and effective means of anticoagulation for POAF after coronary artery bypass grafting. Patients were therapeutic more rapidly and with less cost of treatment when NOACs were used.


Assuntos
Anticoagulantes/uso terapêutico , Fibrilação Atrial/tratamento farmacológico , Ponte de Artéria Coronária , Varfarina/uso terapêutico , Administração Oral , Idoso , Anticoagulantes/economia , Fibrilação Atrial/etiologia , Transfusão de Componentes Sanguíneos/estatística & dados numéricos , Dabigatrana/economia , Dabigatrana/uso terapêutico , Custos de Medicamentos , Feminino , Humanos , Tempo de Internação/estatística & dados numéricos , Masculino , Pirazóis/economia , Pirazóis/uso terapêutico , Piridonas/economia , Piridonas/uso terapêutico , Rivaroxabana/economia , Rivaroxabana/uso terapêutico , Resultado do Tratamento , Varfarina/economia
16.
J Stroke Cerebrovasc Dis ; 22(4): 340-4, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-22018507

RESUMO

Therapy with recombinant tissue plasminogen activator is underused in the treatment of ischemic stroke in rural hospitals, due to a lack of local stroke expertise. Telemedicine solutions for stroke are a level I, class A recommendation when a vascular neurologist is absent. However, current solutions require exorbitant startup costs, which are prohibitive for the rural hospitals in which they are needed most. This study demonstrates the efficacy of using the relatively inexpensive iPhone 4 in telestroke management. Twenty patients with stroke were assessed at the bedside using an iPhone 4, and each examination was directed remotely on another iPhone 4. Both the physician performing the bedside exam and the remote physician calculated a National Institutes of Health Stroke Scale (NIHSS) score for each patient. Each physician was blinded to the other's NIHSS score. In the 20 patients assessed, NIHSS scores ranged from 0 to 22. Interrater reliability assessed using the κ statistic demonstrated excellent agreement in 10 items (level of consciousness, month and age, visual fields, right motor arm, left motor arm, right motor leg, left motor leg, sensation, language, and neglect), moderate agreement in 3 items (gaze, facial palsy, and dysarthria), and poor agreement in 1 item (ataxia). Total NIHSS scores obtained remotely and at bedside showed an excellent level of agreement (intraclass correlation coefficient, 0.98). Our findings indicate that the iPhone 4 is an economical mobile solution that can be used to assess stroke patients remotely with high fidelity and can be readily incorporated into a telestroke network.


Assuntos
Telefone Celular , Computadores de Mão , Avaliação da Deficiência , Sistemas Automatizados de Assistência Junto ao Leito , Consulta Remota/instrumentação , Acidente Vascular Cerebral/diagnóstico , Adulto , Idoso , Telefone Celular/economia , Computadores de Mão/economia , Análise Custo-Benefício , Estudos de Viabilidade , Feminino , Custos de Cuidados de Saúde , Acessibilidade aos Serviços de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Variações Dependentes do Observador , Sistemas Automatizados de Assistência Junto ao Leito/economia , Valor Preditivo dos Testes , Prognóstico , Consulta Remota/economia , Reprodutibilidade dos Testes , Índice de Gravidade de Doença , Acidente Vascular Cerebral/economia , Acidente Vascular Cerebral/terapia , Fatores de Tempo
17.
Stat Appl Genet Mol Biol ; 11(5)2012 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-23152426

RESUMO

Advances in genotyping that allow tens of thousands of individuals to be genotyped at a moderate number of single nucleotide polymorphisms (SNPs) permit parentage inference to be pursued on a very large scale. The intergenerational tagging this capacity allows is revolutionizing the management of cultured organisms (cows, salmon, etc.) and is poised to do the same for scientific studies of natural populations. Currently, however, there are no likelihood-based methods of parentage inference which are implemented in a manner that allows them to quickly handle a very large number of potential parents or parent pairs. Here we introduce an efficient likelihood-based method applicable to the specialized case of cultured organisms in which both parents can be reliably sampled. We develop a Markov chain representation for the cumulative number of Mendelian incompatibilities between an offspring and its putative parents and we exploit it to develop a fast algorithm for simulation-based estimates of statistical confidence in SNP-based assignments of offspring to pairs of parents. The method is implemented in the freely available software SNPPIT. We describe the method in detail, then assess its performance in a large simulation study using known allele frequencies at 96 SNPs from ten hatchery salmon populations. The simulations verify that the method is fast and accurate and that 96 well-chosen SNPs can provide sufficient power to identify the correct pair of parents from amongst millions of candidate pairs.


Assuntos
Algoritmos , Simulação por Computador , Modelos Genéticos , Polimorfismo de Nucleotídeo Único , Software , Animais , Interpretação Estatística de Dados , Feminino , Frequência do Gene , Funções Verossimilhança , Escore Lod , Masculino , Cadeias de Markov , Método de Monte Carlo , Linhagem , Salmão/genética
18.
J Hematol Oncol ; 3: 6, 2010 Feb 04.
Artigo em Inglês | MEDLINE | ID: mdl-20132557

RESUMO

OBJECTIVE: To report serial 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET)/computed tomography (CT) tumor response following CyberKnife radiosurgery for stage IA non-small cell lung cancer (NSCLC). METHODS: Patients with biopsy-proven inoperable stage IA NSCLC were enrolled into this IRB-approved study. Targeting was based on 3-5 gold fiducial markers implanted in or near tumors. Gross tumor volumes (GTVs) were contoured using lung windows; margins were expanded by 5 mm to establish the planning treatment volumes (PTVs). Doses ranged from 42-60 Gy in 3 equal fractions. 18F-FDG PET/CT was performed prior to and at 3-6-month, 9-15 months and 18-24 months following treatment. The tumor maximum standardized uptake value (SUV(max)) was recorded for each time point. RESULTS: Twenty patients with an average maximum tumor diameter of 2.2 cm were treated over a 3-year period. A mean dose of 51 Gy was delivered to the PTV in 3 to 11 days (mean, 7 days). The 30-Gy isodose contour extended an average of 2 cm from the GTV. At a median follow-up of 43 months, the 2-year Kaplan-Meier overall survival estimate was 90% and the local control estimate was 95%. Mean tumor SUV(max) before treatment was 6.2 (range, 2.0 to 10.7). During early follow-up the mean tumor SUV(max) remained at 2.3 (range, 1.0 to 5.7), despite transient elevations in individual tumor SUV(max) levels attributed to peritumoral radiation-induced pneumonitis visible on CT imaging. At 18-24 months the mean tumor SUV(max) for controlled tumors was 2.0, with a narrow range of values (range, 1.5 to 2.8). A single local failure was confirmed at 24 months in a patient with an elevated tumor SUV(max) of 8.4. CONCLUSION: Local control and survival following CyberKnife radiosurgery for stage IA NSCLC is exceptional. Early transient increases in tumor SUV(max) are likely related to radiation-induced pneumonitis. Tumor SUV(max) values return to background levels at 18-24 months, enhancing 18F-FDG PET/CT detection of local failure. The value of 18F-FDG PET/CT imaging for surveillance following lung SBRT deserves further study.


Assuntos
Carcinoma Pulmonar de Células não Pequenas/diagnóstico por imagem , Carcinoma Pulmonar de Células não Pequenas/cirurgia , Fluordesoxiglucose F18 , Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias Pulmonares/cirurgia , Tomografia por Emissão de Pósitrons/métodos , Radiocirurgia , Idoso , Idoso de 80 Anos ou mais , Carcinoma Pulmonar de Células não Pequenas/mortalidade , Carcinoma Pulmonar de Células não Pequenas/patologia , Feminino , Seguimentos , Humanos , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Terapia de Salvação , Análise de Sobrevida , Tomografia Computadorizada de Emissão/métodos
19.
Mol Ecol ; 19(2): 281-91, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20025655

RESUMO

Severe declines in megafauna worldwide illuminate the role of top predators in ecosystem structure. In the Antarctic, the Krill Surplus Hypothesis posits that the killing of more than 2 million large whales led to competitive release for smaller krill-eating species like the Antarctic minke whale. If true, the current size of the Antarctic minke whale population may be unusually high as an indirect result of whaling. Here, we estimate the long-term population size of the Antarctic minke whale prior to whaling by sequencing 11 nuclear genetic markers from 52 modern samples purchased in Japanese meat markets. We use coalescent simulations to explore the potential influence of population substructure and find that even though our samples are drawn from a limited geographic area, our estimate reflects ocean-wide genetic diversity. Using Bayesian estimates of the mutation rate and coalescent-based analyses of genetic diversity across loci, we calculate the long-term population size of the Antarctic minke whale to be 670,000 individuals (95% confidence interval: 374,000-1,150,000). Our estimate of long-term abundance is similar to, or greater than, contemporary abundance estimates, suggesting that managing Antarctic ecosystems under the assumption that Antarctic minke whales are unusually abundant is not warranted.


Assuntos
Genética Populacional , Baleia Anã/genética , Modelos Genéticos , Animais , Teorema de Bayes , Simulação por Computador , Conservação dos Recursos Naturais , Ligação Genética , Marcadores Genéticos , Variação Genética , Geografia , Método de Monte Carlo , Mutação , Densidade Demográfica , Recombinação Genética , Análise de Sequência de DNA
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