Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 3 de 3
Filtrar
Más filtros










Base de datos
Intervalo de año de publicación
1.
JAMA Netw Open ; 4(6): e2113193, 2021 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-34110395

RESUMEN

Importance: Early discussion of end-of-life (EOL) care preferences improves clinical outcomes and goal-concordant care. However, most EOL discussions occur approximately 1 month before death, despite most patients desiring information earlier. Objective: To describe successful navigation and missed opportunities for EOL discussions (eg, advance care planning, palliative care, discontinuation of disease-directed treatment, hospice care, and after-death wishes) between oncologists and outpatients with advanced cancer. Design, Setting, and Participants: This study is a secondary qualitative analysis of outpatient visits audio-recorded between November 2010 and September 2014 for the Studying Communication in Oncologist-Patient Encounters randomized clinical trial. The study was conducted at 2 US academic medical centers. Participants included medical, gynecological, and radiation oncologists and patients with stage IV malignant neoplasm, whom oncologists characterized as being ones whom they "…would not be surprised if they were admitted to an intensive care unit or died within one year." Data were analyzed between January 2018 and August 2020. Exposures: The parent study randomized participants to oncologist- and patient-directed interventions to facilitate discussion of emotions. Encounters were sampled across preintervention and postintervention periods and all 4 treatment conditions. Main Outcomes and Measures: Secondary qualitative analysis was done of patient-oncologist dyads with 3 consecutive visits for EOL discussions, and a random sample of 7 to 8 dyads from 4 trial groups was analyzed for missed opportunities. Results: The full sample included 141 patients (54 women [38.3%]) and 39 oncologists (8 women [19.5%]) (mean [SD] age for both patients and oncologists, 56.3 [10.0] years). Of 423 encounters, only 21 (5%) included EOL discussions. Oncologists reevaluated treatment options in response to patients' concerns, honored patients as experts on their goals, or used anticipatory guidance to frame treatment reevaluation. In the random sample of 31 dyads and 93 encounters, 35 (38%) included at least 1 missed opportunity. Oncologists responded inadequately to patient concerns over disease progression or dying, used optimistic future talk to address patient concerns, or expressed concern over treatment discontinuation. Only 4 of 23 oncologists (17.4%) had both an EOL discussion and a missed opportunity. Conclusions and Relevance: Opportunities for EOL discussions were rarely realized, whereas missed opportunities were more common, a trend that mirrored oncologists' treatment style. There remains a need to address oncologists' sensitivity to EOL discussions, to avoid unnecessary EOL treatment.


Asunto(s)
Planificación Anticipada de Atención/estadística & datos numéricos , Comunicación , Neoplasias/psicología , Planificación de Atención al Paciente/estadística & datos numéricos , Relaciones Médico-Paciente , Cuidado Terminal/psicología , Cuidado Terminal/estadística & datos numéricos , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Oncólogos/psicología , Oncólogos/estadística & datos numéricos , Pacientes/psicología , Pacientes/estadística & datos numéricos , Investigación Cualitativa , Estados Unidos
3.
J Biomed Mater Res B Appl Biomater ; 106(1): 353-359, 2018 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-28152265

RESUMEN

The optimum UHMWPE orthopedic implant bearing surface must balance wear, oxidation, and fatigue resistance. Antioxidant polyethylene addresses free radicals, resulting from irradiation used in cross-linking, that could oxidize and potentially lead to fatigue damage under cycles of in vivo use. This study evaluates what short-term antioxidant UHMWPE retrievals can reveal about: (1) oxidation-resistance and (2) fatigue-resistance of these new materials. Retrievals of three different antioxidant polyethylene materials (n = 25) were analyzed by FTIR and uniaxial tensile tests and compared to conventional (n = 20) and remelted highly cross-linked (n = 30) polyethylene retrievals of similar in vivo duration. Maximum oxidation values differed significantly across material types (p = 0.018). No antioxidant retrieval exhibited a subsurface oxidation peak, in contrast to conventional gamma-sterilized (55%) and highly cross-linked (37%) retrievals that exhibited subsurface oxidation peaks over the same in vivo time. Trans-vinylene index (TVI) correlated positively with nominal irradiation dose (p < 0.001). Tensile toughness correlated negatively with increasing TVI (p < 0.001). The antioxidant materials in this study prevented in vivo oxidation more effectively than remelted HXL polyethylene at least over the in vivo period represented. The comparison of antioxidant retrieval tensile properties can be used as a guide for clinicians in choosing appropriate materials for the applications represented by their patients. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 353-359, 2018.


Asunto(s)
Antioxidantes/química , Polietilenos/química , Oxidación-Reducción
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...