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1.
J Am Soc Nephrol ; 35(3): 299-310, 2024 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-38254260

RESUMEN

SIGNIFICANCE STATEMENT: Black adults in the United States have 2-4 times higher incidence of kidney failure than White adults. Yet, the reasons underlying this disparity remain poorly understood. Among 547,188 US veterans with new-onset CKD, according to a new race-free GFR equation, Black veterans had a 2.5-fold higher cumulative incidence of kidney failure, compared with White veterans, in any follow-up period from CKD onset. This disparity resulted from a combination of higher hazards of progression to kidney failure and lower hazards of competing-risk death in Black veterans. Both, in turn, were largely explained by the younger age at CKD onset in Black veterans, underscoring an urgent need to prevent early onset and slow progression of CKD in younger Black adults. BACKGROUND: The Black adult population is well known to have higher incidence of kidney failure than their White counterpart in the United States, but the reasons underlying this disparity are unclear. We assessed the racial differences in kidney failure and death from onset of CKD on the basis of the race-free 2021 CKD Epidemiology Collaboration equation and examined the extent to which these differences could be explained by factors at the time of CKD onset. METHODS: We analyzed a national cohort consisting of 547,188 US veterans (103,821 non-Hispanic Black and 443,367 non-Hispanic White), aged 18-85 years, with new-onset CKD between 2005 and 2016 who were followed through 10 years or May 2018 for incident kidney failure with replacement therapy (KFRT) and pre-KFRT death. RESULTS: At CKD onset, Black veterans were, on average, 7.8 years younger than White veterans. In any time period from CKD onset, the cumulative incidence of KFRT was 2.5-fold higher for Black versus White veterans. Meanwhile, Black veterans had persistently >2-fold higher hazards of KFRT throughout follow-up (overall hazard ratio [95% confidence interval], 2.38 [2.31 to 2.45]) and conversely had 17%-48% decreased hazards of pre-KFRT death. These differences were reduced after accounting for the racial difference in age at CKD onset. CONCLUSIONS: The 2.5-fold higher cumulative incidence of kidney failure in Black adults resulted from a combination of higher hazards of progression to kidney failure and lower hazards of the competing risk of death, both of which can be largely explained by the younger age at CKD onset in Black compared with White adults.


Asunto(s)
Insuficiencia Renal Crónica , Insuficiencia Renal , Adulto , Humanos , Estados Unidos/epidemiología , Incidencia , Etnicidad , Insuficiencia Renal Crónica/epidemiología , Insuficiencia Renal Crónica/terapia , Blanco
2.
Am J Kidney Dis ; 82(6): 706-714, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37516301

RESUMEN

RATIONALE & OBJECTIVE: Although some evidence exists of increased dementia risk from anemia, it is unclear whether this association persists among adults with CKD. Anemia may be a key marker for dementia among adults with CKD, so we evaluated whether anemia is associated with an increased risk of dementia among adults with CKD. STUDY DESIGN: Retrospective cohort study. SETTING & PARTICIPANTS: The study included 620,095 veterans aged≥45 years with incident stage 3 CKD (estimated glomerular filtration rate [eGFR]<60mL/min/1.73m2) between January 2005 and December 2016 in the US Veterans Health Administration system and followed through December 31, 2018, for incident dementia, kidney failure, or death. EXPOSURE: Anemia was assessed based on the average of hemoglobin levels (g/L) during the 2 years before the date of incident CKD and categorized as normal, mild, or moderate/severe anemia (≥12.0, 11.0-11.9,<11.0g/dL, respectively, for women, and≥13.0, 11.0-12.9,<11.0g/dL for men). OUTCOME: Dementia and the composite outcome of kidney failure or death. ANALYTICAL APPROACH: Adjusted cause-specific hazard ratios were estimated for each outcome. RESULTS: At the time of incident CKD, the mean age of the participants was 72 years, 97% were male, and their mean eGFR was 51mL/min per 1.73m2. Over a median 4.1 years of follow-up, 92,306 veterans (15%) developed dementia before kidney failure or death. Compared with the veterans with CKD without anemia, the multivariable-adjusted models showed a 16% (95% CI, 14%-17%) significantly higher risk of dementia for those with mild anemia and a 27% (95% CI, 23%-31%) higher risk with moderate/severe anemia. Combined risk of kidney failure or death was higher at 39% (95% CI, 37%-40%) and 115% (95% CI, 112%-119%) for mild and moderate/severe anemia, respectively, compared with no anemia. LIMITATIONS: Residual confounding from the observational study design. Findings may not be generalizable to the broader US population. CONCLUSIONS: Anemia was significantly associated with an increased risk of dementia among veterans with incident CKD, underscoring the role of anemia as a predictor of dementia risk. PLAIN-LANGUAGE SUMMARY: Adults with chronic kidney disease (CKD) often have anemia. Prior studies among adults in the general population suggest anemia is a risk factor for dementia, though it is unclear whether this association persists among adults with CKD. In this large study of veterans in the United States, we studied the association between anemia and the risk of 2 important outcomes in this population: (1) dementia and (2) kidney failure or death. We found that anemia was associated with a greater risk of dementia as well as risk of kidney failure or death. The study findings therefore emphasize the role of anemia as a key predictor of dementia risk among adults with CKD.


Asunto(s)
Anemia , Demencia , Insuficiencia Renal Crónica , Insuficiencia Renal , Veteranos , Adulto , Humanos , Masculino , Femenino , Estados Unidos/epidemiología , Anciano , Estudios Retrospectivos , Estudios de Cohortes , Insuficiencia Renal Crónica/complicaciones , Insuficiencia Renal Crónica/epidemiología , Tasa de Filtración Glomerular , Factores de Riesgo , Anemia/epidemiología , Anemia/complicaciones , Insuficiencia Renal/complicaciones , Demencia/epidemiología
3.
Nephrol Dial Transplant ; 38(3): 532-541, 2023 02 28.
Artículo en Inglés | MEDLINE | ID: mdl-36264305

RESUMEN

For the first time in many years, guideline-directed drug therapies have emerged that offer substantial cardiorenal benefits, improved quality of life and longevity in patients with chronic kidney disease (CKD) and type 2 diabetes. These treatment options include sodium-glucose cotransporter-2 inhibitors, nonsteroidal mineralocorticoid receptor antagonists and glucagon-like peptide-1 receptor agonists. However, despite compelling evidence from multiple clinical trials, their uptake has been slow in routine clinical practice, reminiscent of the historical evolution of angiotensin-converting enzyme inhibitor and angiotensin II receptor blocker use. The delay in implementation of these evidence-based therapies highlights the many challenges to optimal CKD care, including: (i) clinical inertia; (ii) low CKD awareness; (iii) suboptimal kidney disease education among patients and providers; (iv) lack of patient and community engagement; (v) multimorbidity and polypharmacy; (vi) challenges in the primary care setting; (vii) fragmented CKD care; (viii) disparities in underserved populations; (ix) lack of public policy focused on health equity; and (x) high drug prices. These barriers to optimal cardiorenal outcomes can be ameliorated by a multifaceted approach, using the Chronic Care Model framework, to include patient and provider education, patient self-management programs, shared decision making, electronic clinical decision support tools, quality improvement initiatives, clear practice guidelines, multidisciplinary and collaborative care, provider accountability, and robust health information technology. It is incumbent on the global kidney community to take on a multidimensional perspective of CKD care by addressing patient-, community-, provider-, healthcare system- and policy-level barriers.


Asunto(s)
Diabetes Mellitus Tipo 2 , Insuficiencia Renal Crónica , Inhibidores del Cotransportador de Sodio-Glucosa 2 , Humanos , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Calidad de Vida , Inhibidores del Cotransportador de Sodio-Glucosa 2/uso terapéutico , Insuficiencia Renal Crónica/terapia , Riñón
4.
Dis Colon Rectum ; 66(9): 1223-1233, 2023 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-35533321

RESUMEN

BACKGROUND: Racial and ethnic disparities in receipt of recommended colorectal cancer screening exist; however, the impact of social determinants of health on such disparities has not been recently studied in a national cohort. OBJECTIVE: This study aimed to determine whether social determinants of health attenuate racial disparities in receipt of colorectal cancer screening. DESIGN: This was a cross-sectional telephone survey of self-reported race and ethnicity and up-to-date colorectal cancer screening. Associations between race/ethnicity and colorectal cancer screening were tested before and after adjustment for demographics, behavioral factors, and social determinants of health. SETTING: This was a nationally representative telephone survey of US residents in 2018. PATIENTS: The patients included were US residents aged 50 to 75 years. MAIN OUTCOME MEASURES: The primary outcome was up-to-date colorectal cancer screening status, according to 2008 US Preventive Services Task Force recommendations. RESULTS: This study included 226,106 respondents aged 50 to 75 years. Before adjustment, all minority racial and ethnic groups demonstrated a significantly lower odds of screening than those of non-Hispanic white respondents. After adjustment for demographics, behavioral factors, and social determinants of health, compared to non-Hispanic white respondents, odds of screening were found to be increased among non-Hispanic black respondents (OR, 1.10; p = 0.02); lower but attenuated among Hispanic respondents (OR, 0.73; p < 0.001), non-Hispanic American Indian/Alaskan Native respondents (OR, 0.85; p = 0.048), and non-Hispanic respondents of other races (OR, 0.82; p = 0.01); and lower but not attenuated among non-Hispanic Asian respondents (OR, 0.68; p < 0.001). LIMITATIONS: Recall bias, participant bias, and residual confounding. CONCLUSIONS: Adjustment for social determinants of health reduced racial and ethnic disparities in colorectal cancer screening among all minority racial and ethnic groups except non-Hispanic Asian individuals; however, other unmeasured confounders likely exist. See Video Abstract at http://links.lww.com/DCR/B977 . ASOCIACIN DE RAZA, ETNICIDAD Y DETERMINANTES SOCIALES DE LA SALUD CON LA DETECCIN DEL CNCER COLORRECTAL: ANTECEDENTES: Existen disparidades raciales y étnicas en la recepción de las pruebas recomendadas de detección de cáncer colorrectal; sin embargo, el impacto de los determinantes sociales de la salud en dichas disparidades no se ha estudiado recientemente en una cohorte nacional.OBJETIVO: El objetivo de este estudio fue determinar si los determinantes sociales de la salud atenúan las disparidades raciales en la recepción de pruebas de detección del cáncer colorrectal.DISEÑO: Encuesta telefónica transversal de raza y etnia autoinformada y detección actualizada de cáncer colorrectal. Las asociaciones entre la raza/etnicidad y la detección del cáncer colorrectal se probaron antes y después del ajuste por demografía, factores conductuales y determinantes sociales de la salud.ESCENARIO: Esta fue una encuesta telefónica representativa a nivel nacional de los residentes de EE. UU. en 2018.PACIENTES: Los pacientes eran residentes de EE. UU. de 50 a 75 años.PRINCIPALES MEDIDAS DE RESULTADO: Estado actualizado de detección de cáncer colorrectal, según las recomendaciones del Grupo de Trabajo de Servicios Preventivos de EE. UU. de 2008.RESULTADOS: Este estudio incluyó a 226.106 encuestados de 50 a 75 años. Antes del ajuste, todos los grupos étnicos y raciales minoritarios demostraron probabilidades significativamente más bajas de detección en comparación con los encuestados blancos no hispanos. Después del ajuste por demografía, factores conductuales y determinantes sociales de la salud, en comparación con los encuestados blancos no hispanos, las probabilidades de detección aumentaron entre los encuestados negros no hispanos (OR 1,10, p = 0,02); más bajo pero atenuado entre los encuestados hispanos (OR 0,73, p < 0,001), los encuestados indios americanos/nativos de Alaska no hispanos (OR 0,85, p = 0,048) y los encuestados no hispanos de otras razas (OR 0,82, p = 0,01); y menor pero no atenuado entre los encuestados asiáticos no hispanos (OR 0,68, p < 0,001).LIMITACIONES: Sesgo de recuerdo y sesgo de participante, así como confusión residual.CONCLUSIONES: El ajuste para los determinantes sociales de la salud redujo las disparidades raciales y étnicas en la detección del cáncer colorrectal entre todos los grupos étnicos y raciales minoritarios, excepto las personas asiáticas no hispanas; sin embargo, es probable que existan otros factores de confusión no medidos. Consulte Video Resumen en http://links.lww.com/DCR/B977 . (Traducción-Dr. Felipe Bellolio ).


Asunto(s)
Neoplasias Colorrectales , Detección Precoz del Cáncer , Humanos , Etnicidad , Estudios Transversales , Determinantes Sociales de la Salud , Neoplasias Colorrectales/diagnóstico , Estudios Retrospectivos
5.
Biostatistics ; 22(3): 613-628, 2021 07 17.
Artículo en Inglés | MEDLINE | ID: mdl-31879751

RESUMEN

The human brain is a directional network system, in which brain regions are network nodes and the influence exerted by one region on another is a network edge. We refer to this directional information flow from one region to another as directional connectivity. Seizures arise from an epileptic directional network; abnormal neuronal activities start from a seizure onset zone and propagate via a network to otherwise healthy brain regions. As such, effective epilepsy diagnosis and treatment require accurate identification of directional connections among regions, i.e., mapping of epileptic patients' brain networks. This article aims to understand the epileptic brain network using intracranial electroencephalographic data-recordings of epileptic patients' brain activities in many regions. The most popular models for directional connectivity use ordinary differential equations (ODE). However, ODE models are sensitive to data noise and computationally costly. To address these issues, we propose a high-dimensional state-space multivariate autoregression (SSMAR) model for the brain's directional connectivity. Different from standard multivariate autoregression and SSMAR models, the proposed SSMAR features a cluster structure, where the brain network consists of several clusters of densely connected brain regions. We develop an expectation-maximization algorithm to estimate the proposed model and use it to map the interregional networks of epileptic patients in different seizure stages. Our method reveals the evolution of brain networks during seizure development.


Asunto(s)
Electrocorticografía , Epilepsia , Encéfalo , Mapeo Encefálico , Electroencefalografía , Epilepsia/diagnóstico , Humanos , Convulsiones
6.
Am J Nephrol ; 53(8-9): 652-662, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36209732

RESUMEN

INTRODUCTION: Mortality is an important long-term indicator of the public health impact of chronic kidney disease (CKD). We investigated the role of individual comorbidities and multimorbidity on age-specific mortality risk among US veterans with new-onset CKD. METHODS: The cohort included 892,005 veterans aged ≥18 years with incident CKD stage 3 between January 2004 and April 2018 in the US Veterans Health Administration (VHA) system and followed until death, December 2018, or up to 10 years. Incident CKD was defined as the first-time estimated glomerular filtration rate (eGFR) was <60 mL/min/1.73 m2 for >3 months. Comorbidities were ascertained using inpatient and outpatient clinical records in the VHA system and Medicare claims. We estimated death rates for any cardiovascular disease (CVD, a composite of 6 CVD conditions) and 15 non-CVD comorbidities, and adjusted risks of death (hazard ratio [HR], 95% confidence interval [CI]) overall and by age group at CKD incidence. RESULTS: At CKD incidence, the mean age was 72 years, and 97% were male; the mean eGFR was 52 mL/min/1.73 m2, and 95% had ≥2 comorbidities (median, 4) in addition to CKD. During a median follow-up of 4.5 years, among the 16 comorbidities, CVD was associated with the highest relative risk of death in younger veterans (HR 1.96 [95% CI: 1.61-2.37] in ages 18-44 years and HR 1.66 [1.63-1.70] in ages 45-64 years). Dementia was associated with the highest relative risk of death among older veterans (HR 1.71 [1.68-1.74] in ages 65-84 years and HR 1.69 [1.65-1.73] in ages 85-100 years). The additive effect of multimorbidity on risk of death was stronger in younger than older veterans. Compared to having 1 or no comorbidity at CKD onset, the risk of death with ≥5 comorbidities was >7-fold higher among veterans aged 18-44 years and >2-fold higher among veterans aged 85-100 years. CONCLUSION: The large burden of comorbidities in US veterans with newly identified CKD places them at the risk of premature death. Compared with older veterans, younger veterans with multiple comorbidities, particularly with CVD, at CKD onset are at an even higher relative risk of death.


Asunto(s)
Enfermedades Cardiovasculares , Insuficiencia Renal Crónica , Veteranos , Anciano , Masculino , Humanos , Estados Unidos/epidemiología , Adolescente , Adulto , Femenino , Multimorbilidad , Medicare , Insuficiencia Renal Crónica/epidemiología , Tasa de Filtración Glomerular , Enfermedades Cardiovasculares/epidemiología , Factores de Riesgo
7.
Am J Nephrol ; 52(2): 98-107, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33752206

RESUMEN

BACKGROUND: The global epidemiology of end-stage kidney disease (ESKD) reflects each nation's unique genetic, environmental, lifestyle, and sociodemographic characteristics. The response to ESKD, particularly regarding kidney replacement therapy (KRT), depends on local disease burden, culture, and socioeconomics. Here, we explore geographic variation and global trends in ESKD incidence and prevalence and examine variations in KRT modality, practice patterns, and mortality. We conclude with a discussion on disparities in access to KRT and strategies to reduce ESKD global burden and to improve access to treatment in low- and middle-income countries (LMICs). SUMMARY: From 2003 to 2016, incidence rates of treated ESKD were relatively stable in many higher income countries but rose substantially predominantly in East and Southeast Asia. The prevalence of treated ESKD has increased worldwide, likely due to improving ESKD survival, population demographic shifts, higher prevalence of ESKD risk factors, and increasing KRT access in countries with growing economies. Unadjusted 5-year survival of ESKD patients on KRT was 41% in the USA, 48% in Europe, and 60% in Japan. Dialysis is the predominant KRT in most countries, with hemodialysis being the most common modality. Variations in dialysis practice patterns account for some of the differences in survival outcomes globally. Worldwide, there is a greater prevalence of KRT at higher income levels, and the number of people who die prematurely because of lack of KRT access is estimated at up to 3 times higher than the number who receive treatment. Key Messages: Many people worldwide in need of KRT as a life-sustaining treatment do not receive it, mostly in LMICs where health care resources are severely limited. This large treatment gap demands a focus on population-based prevention strategies and development of affordable and cost-effective KRT. Achieving global equity in KRT access will require concerted efforts in advocating effective public policy, health care delivery, workforce capacity, education, research, and support from the government, private sector, nongovernmental, and professional organizations.


Asunto(s)
Países Desarrollados/estadística & datos numéricos , Países en Desarrollo/estadística & datos numéricos , Disparidades en Atención de Salud , Fallo Renal Crónico/epidemiología , Fallo Renal Crónico/terapia , Terapia de Reemplazo Renal , África/epidemiología , Derivación Arteriovenosa Quirúrgica/estadística & datos numéricos , China/epidemiología , Salud Global/estadística & datos numéricos , Humanos , Incidencia , India/epidemiología , Fallo Renal Crónico/mortalidad , Prevalencia , Diálisis Renal/estadística & datos numéricos , Tasa de Supervivencia , Estados Unidos/epidemiología
8.
Nurs Ethics ; 28(7-8): 1165-1182, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33888021

RESUMEN

BACKGROUND: Moral distress is recognized as a problem affecting healthcare professionals globally. Unaddressed moral distress may lead to withdrawal from the moral dimensions of patient care, burnout, or leaving the profession. Despite the importance, studies related to moral distress are scant in Thailand. OBJECTIVE: This study aims to describe the experience of moral distress and related factors among Thai nurses. DESIGN: A convergent parallel mixed-methods design was used. The quantitative and qualitative data were collected in parallel using the Measure of Moral Distress for Healthcare Professionals and interview guide. The analysis was conducted separately and then integrated. PARTICIPANTS: Participants were Thai nurses from two large tertiary care institutions in a Southern province of Thailand. ETHICAL CONSIDERATIONS: This study was approved by our organization's Institutional Review Board for Health Sciences Research, and by the Institutional Review Boards of the two local institutions in Thailand. Permission from the publisher was received to translate and utilize the Measure of Moral Distress (MMD-HP) under the license number: 4676990097151. RESULTS: A total of 462 participants completed the survey questions. The top 7 causes of moral distress were related to system-level root causes and end-of-life care situations. Hierarchical multiple regression showed that work units, considering leaving position, and number of moral distress episodes in the past year were significant predictors of moral distress. Twenty interviews demonstrated three main themes of distressing causes: (1) powerlessness (at patients/family-, team-, and organizational-levels), (2) end-of-life issues, and (3) poor team function (poor communication and collaboration, incompetent healthcare providers, and inappropriate behavior of colleagues). The integration of data from both components indicated that the qualitative interviews enrich the quantitative findings, especially as related to the top 7 causes of moral distress. DISCUSSION: Although the experience of moral distress among Thai nurses is similar to studies conducted elsewhere, the patient's and family's religious perspective that ties into the concept of moral distress needs to be explored. CONCLUSIONS: Although the root causes of moral distress are similar among different cultures, the experience of Thai nurses may vary according to culture and context.


Asunto(s)
Agotamiento Profesional , Enfermeras y Enfermeros , Cuidado Terminal , Actitud del Personal de Salud , Humanos , Principios Morales , Estrés Psicológico/etiología , Encuestas y Cuestionarios
9.
Epilepsia ; 60(7): 1453-1461, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-31185129

RESUMEN

OBJECTIVE: To determine whether a less-invasive approach to surgery for medically refractory temporal lobe epilepsy is associated with lower health care costs and costs of lost productivity over time, compared to open surgery. METHODS: We compared direct medical costs and indirect productivity costs associated with treatment with stereotactic radiosurgery (SRS) or anterior temporal lobectomy (ATL) in the ROSE (Radiosurgery or Open Surgery for Epilepsy) trial. Health care use was abstracted from hospital bills, the study database, and diaries in which participants recorded health care use and time lost from work while seeking care. Costs of use were calculated using a Medicare costing approach used in a prior study of the costs of ATL. The power of many analyses was limited by the sample size and data skewing. RESULTS: Combined treatment and follow-up costs (in thousands of US dollars) did not differ between SRS (n = 20, mean = $76.6, 95% confidence interval [CI] = 50.7-115.6) and ATL (n = 18, mean = $79.0, 95% CI = 60.09-103.8). Indirect costs also did not differ. More ATL than SRS participants were free of consciousness-impairing seizures in each year of follow-up (all P < 0.05). Costs declined following ATL (P = 0.005). Costs tended to increase over the first 18 months following SRS (P = 0.17) and declined thereafter (P = 0.06). This mostly reflected hospitalizations for SRS-related adverse events in the second year of follow-up. SIGNIFICANCE: Lower initial costs of SRS for medial temporal lobe epilepsy were largely offset by hospitalization costs related to adverse events later in the course of follow-up. Future studies of less-invasive alternatives to ATL will need to assess adverse events and major costs systematically and prospectively to understand the economic implications of adopting these technologies.


Asunto(s)
Epilepsia del Lóbulo Temporal/cirugía , Costos de la Atención en Salud/estadística & datos numéricos , Radiocirugia/economía , Adulto , Costos y Análisis de Costo , Epilepsia del Lóbulo Temporal/economía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Aceptación de la Atención de Salud/estadística & datos numéricos
10.
Neuroimage ; 173: 580-591, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29288129

RESUMEN

The focus of this paper is on evaluating brain responses to different stimuli and identifying brain regions with different responses using multi-subject, stimulus-evoked functional magnetic resonance imaging (fMRI) data. To jointly model many brain voxels' responses to designed stimuli, we present a new low-rank multivariate general linear model (LRMGLM) for stimulus-evoked fMRI data. The new model not only is flexible to characterize variation in hemodynamic response functions (HRFs) across different regions and stimulus types, but also enables information "borrowing" across voxels and uses much fewer parameters than typical nonparametric models for HRFs. To estimate the proposed LRMGLM, we introduce a new penalized optimization function, which leads to temporally and spatially smooth HRF estimates. We develop an efficient optimization algorithm to minimize the optimization function and identify the voxels with different responses to stimuli. We show that the proposed method can outperform several existing voxel-wise methods by achieving both high sensitivity and specificity. We apply the proposed method to the fMRI data collected in an emotion study, and identify anterior dACC to have different responses to a designed threat and control stimuli.


Asunto(s)
Algoritmos , Mapeo Encefálico/métodos , Encéfalo/fisiología , Modelos Neurológicos , Simulación por Computador , Hemodinámica/fisiología , Humanos , Modelos Lineales , Imagen por Resonancia Magnética/métodos
11.
Epilepsia ; 59(6): 1198-1207, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29600809

RESUMEN

OBJECTIVE: To compare stereotactic radiosurgery (SRS) versus anterior temporal lobectomy (ATL) for patients with pharmacoresistant unilateral mesial temporal lobe epilepsy (MTLE). METHODS: This randomized, single-blinded, controlled trial recruited adults eligible for open surgery among 14 centers in the USA, UK, and India. Treatment was either SRS at 24 Gy to the 50% isodose targeting mesial structures, or standardized ATL. Outcomes were seizure remission (absence of disabling seizures between 25 and 36 months), verbal memory (VM), and quality of life (QOL) at 36-month follow-up. RESULTS: A total of 58 patients (31 in SRS, 27 in ATL) were treated. Sixteen (52%) SRS and 21 (78%) ATL patients achieved seizure remission (difference between ATL and SRS = 26%, upper 1-sided 95% confidence interval = 46%, P value at the 15% noninferiority margin = .82). Mean VM changes from baseline for 21 English-speaking, dominant-hemisphere patients did not differ between groups; consistent worsening occurred in 36% of SRS and 57% of ATL patients. QOL improved with seizure remission. Adverse events were anticipated cerebral edema and related symptoms for some SRS patients, and cerebritis, subdural hematoma, and others for ATL patients. SIGNIFICANCE: These data suggest that ATL has an advantage over SRS in terms of proportion of seizure remission, and both SRS and ATL appear to have effectiveness and reasonable safety as treatments for MTLE. SRS is an alternative to ATL for patients with contraindications for or with reluctance to undergo open surgery.


Asunto(s)
Lobectomía Temporal Anterior/métodos , Epilepsia del Lóbulo Temporal/radioterapia , Epilepsia del Lóbulo Temporal/cirugía , Radiocirugia/métodos , Adulto , Relación Dosis-Respuesta en la Radiación , Epilepsia Refractaria/radioterapia , Epilepsia Refractaria/cirugía , Epilepsia del Lóbulo Temporal/complicaciones , Epilepsia del Lóbulo Temporal/psicología , Femenino , Lateralidad Funcional , Humanos , Estudios Longitudinales , Masculino , Trastornos de la Memoria/diagnóstico , Trastornos de la Memoria/etiología , Persona de Mediana Edad , Complicaciones Posoperatorias/diagnóstico , Calidad de Vida , Método Simple Ciego , Resultado del Tratamiento , Trastornos de la Visión/diagnóstico , Trastornos de la Visión/etiología
12.
J Nurs Care Qual ; 33(4): 326-333, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29346186

RESUMEN

Patient falls remain a leading adverse event in hospitals. In a study of 65 rural hospitals with 222 nursing units and 560 urban hospitals with 4274 nursing units, we found that geographic region, unit type, and nurse staffing, education, experience, and outcomes were associated with fall rates. Implications include specific attention to fall prevention in rehabilitation units, creating better work environments that promote nurse retention, and provide RN-BSN educational opportunities.


Asunto(s)
Accidentes por Caídas/estadística & datos numéricos , Hospitales Rurales/estadística & datos numéricos , Hospitales Urbanos/estadística & datos numéricos , Personal de Enfermería en Hospital/estadística & datos numéricos , Estudios Transversales , Bases de Datos Factuales , Humanos
14.
Nephrol Nurs J ; 44(2): 119-157, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29165963

RESUMEN

The aims of this study were twofold: 1) to describe the post-transfer (defined as from pediatric to adult providers) incidence of predictors (medication nonadherence, acute rejection, and change in kidney function), as well as outcomes (graft loss) for adolescent and young adult kidney transplant recipients during a three-year post-transfer follow-up period; and 2) to identify variables to monitor these predictors, in the form of a clinical profile, so providers can promote early intervention for these medically at-risk adolescents. National data were used to describe predictors and outcomes for 250 youth (16 to 25 years old) three years after transfer of care. These predictors were combined with previous literature to develop a preliminary clinical profile. Using an evidence-based clinical profile with predictors for graft loss by a dedicated healthcare professional as a transition coordinator will assist in identifying those at risk for poor outcomes after transfer.


Asunto(s)
Trasplante de Riñón , Transferencia de Pacientes , Adolescente , Niño , Rechazo de Injerto , Supervivencia de Injerto , Humanos , Inmunosupresores/administración & dosificación , Factores de Riesgo , Receptores de Trasplantes
15.
Prog Transplant ; 26(4): 356-364, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27683424

RESUMEN

BACKGROUND: Improvements in transplantation have increased the survival of children after kidney transplantation. These patients have complex needs, and the current medical system is not prepared to effectively transfer the care of these individuals from pediatric to adult health-care systems. Too often, transfer occurs during moments of crisis and is associated with poor outcomes. OBJECTIVE: The aim of this study was to use a national database, the Scientific Registry of Transplant Recipients, to test the hypothesis that the increased risk of graft loss after transfer of care (from pediatric to adult services) for young adult kidney transplant recipients over a 2- to 3-year posttransfer follow-up period was related to these posttransfer risk factors (medication noncompliance, acute rejection, insurance status). DESIGN: A retrospective, longitudinal, correlational design using secondary data was used to evaluate the transfer of care of 250 kidney transplant recipients (ages 16-25). RESULTS: Seventy-seven (30.8%) individuals lost their graft within 3 years after transfer of care. Medication noncompliance, acute rejection, and serum creatinine >2.0 mg/dL at transfer were significant predictors of graft loss after accounting for multiple other factors. CONCLUSION: These individuals are at risk for graft loss after transfer of care and may benefit from increased personalized care during this risky period.


Asunto(s)
Rechazo de Injerto , Trasplante de Riñón , Niño , Supervivencia de Injerto , Humanos , Estudios Retrospectivos , Factores de Riesgo
16.
Nephrol Nurs J ; 43(2): 101-7; quiz 108, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27254965

RESUMEN

Receipt of pre-end stage renal disease (ESRD) clinical care can improve outcomes for patients treated with maintenance hemodialysis (HD). This study addressed age-related variations in receipt of a composite of recommended care to include nephrologist and dietician care, and use of an arteriovenous fistula at first outpatient maintenance HD. Less than 2% of patients treated with maintenance HD received all three forms of pre-ESRD care, and 63.3% received none of the three elements of care. The mean number of pre-ESRD care elements received by the oldest group (80 years and older) did not differ from the youngest group (less than 55 years), but was less than the 55 to 66 and 67 to 79 years groups; adjusted ratios of 0.93 (0.92 to 0.94; p < 0.001) and 0.94 (0.92 to 0.95; p < 0.001), respectively. A major effort is needed to ensure comprehensive pre-ESRD care for all patients with advanced chronic kidney disease (CKD), especially for the youngest and oldest patient groups, who were less likely to receive recommended pre-ESRD care.


Asunto(s)
Fístula Arteriovenosa/enfermería , Dietética , Fallo Renal Crónico/enfermería , Enfermería en Nefrología/educación , Enfermería en Nefrología/normas , Guías de Práctica Clínica como Asunto , Diálisis Renal/enfermería , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Educación Continua en Enfermería , Femenino , Anciano Frágil , Humanos , Masculino , Persona de Mediana Edad , Estados Unidos
17.
Mov Disord ; 30(5): 733-5, 2015 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-25737058

RESUMEN

BACKGROUND: The aim of this study was to determine whether age of onset of Parkinson disease (PD) is associated with differences in PD risk and PD age of onset in parents and siblings. METHODS: Clinical and detailed family history data were available for 1,114 PD probands. RESULTS: Proband age of onset was not associated with differences in PD prevalence or PD age of onset in parents. Proband age of PD onset <50, compared with ≥ 50 years, was associated with significantly greater risk of PD in siblings (hazard ratio: 2.4; P=0.002; 95% confidence interval: 1.4, 4.1), and proband age of onset was significantly correlated with sibling age of onset (Somer's D=0.20; P=0.018). CONCLUSIONS: Proband age of PD onset is not associated with differences in parental PD risk. Siblings of PD patients with onset before age 50 are at increased risk of PD and are more likely to have early-onset disease.


Asunto(s)
Edad de Inicio , Salud de la Familia , Enfermedad de Parkinson/genética , Adulto , Factores de Edad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Padres , Enfermedad de Parkinson/epidemiología , Prevalencia , Estudios Retrospectivos , Factores de Riesgo , Hermanos
19.
J Nurs Care Qual ; 30(2): 144-52, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25148522

RESUMEN

Registered nurse (RN) "second victims" are RNs who are harmed from their involvement in medical errors. This study used the conceptual model nurse experience of medical errors and found a relationship between RN involvement in preventable adverse events and 2 domains of burnout: emotional exhaustion (P = .009) and depersonalization (P = .030). Support to RNs involved in preventable adverse events was inversely related to RN emotional exhaustion (P < .001) and depersonalization (P = .003) and positively related to personal accomplishment (P = .002).


Asunto(s)
Agotamiento Profesional/psicología , Errores Médicos/psicología , Personal de Enfermería en Hospital/psicología , Análisis de Varianza , Agotamiento Profesional/enfermería , Estudios Transversales , Emociones , Femenino , Humanos , Masculino , Daño del Paciente/psicología , Encuestas y Cuestionarios
20.
J Nurs Care Qual ; 30(3): 247-53, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25546093

RESUMEN

Discrepancies between needed and received hospice care exist, especially in rural areas. Hospice care quality ratings for 743 rural and urban patients and their families were compared. Rural participants reported higher overall satisfaction and with pain/symptom management. Regardless of geographic location, satisfaction was higher when patients were informed and emotionally supported. Patients and family ratings did not differ. Findings support prior reports using retrospective rather than our study's point-of-care surveys.


Asunto(s)
Cuidados Paliativos al Final de la Vida/normas , Calidad de la Atención de Salud/normas , Servicios de Salud Rural/normas , Servicios Urbanos de Salud/normas , Encuestas de Atención de la Salud , Humanos , Enfermeras y Enfermeros , Satisfacción del Paciente , Estudios Prospectivos , Servicios de Salud Rural/provisión & distribución
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