Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 6 de 6
Filtrar
Más filtros










Base de datos
Intervalo de año de publicación
1.
Cancer Med ; 12(24): 22293-22303, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-38063318

RESUMEN

BACKGROUND: An especially significant event in the patient-oncologist relationship is the initial consultation, where many complex topics-diagnosis, treatment intent, and often, prognosis-are discussed in a relatively short period of time. This study aimed to measure patients' understanding of the information discussed during their first medical oncology visit and their satisfaction with the communication from medical oncologists. METHODS: Between January and August 2021, patients without prior systemic treatment of their gastrointestinal malignancy (GI) attending the Princess Margaret Cancer Centre (PMCC) were approached within 24 h of their initial consultation to complete a paper-based questionnaire assessing understanding of their disease (diagnosis, treatment plan/intent, and prognosis) and satisfaction with the consultation. Medical oncology physicians simultaneously completed a similar questionnaire about the information discussed at the initial visit. Matched patient-physician responses were compared to assess the degree of concordance. RESULTS: A total of 184 matched patient-physician surveys were completed. The concordance rates for understanding of diagnosis, treatment plan, treatment intent, and prognosis were 92.9%, 59.2%, 66.8%, and 59.8%, respectively. After adjusting for patient and physician variables, patients who reported treatment intent to be unclear at the time of the consultation were independently associated with lower satisfaction scores (global p = 0.014). There was no statistically significant association between patient satisfaction and whether prognosis was disclosed (p = 0.08). CONCLUSION: An in-depth conversation as to what treatment intent and prognosis means is reasonable during the initial medical oncology consultation to ensure patients and caregivers have a better understanding about their cancer.


Asunto(s)
Neoplasias , Médicos , Humanos , Satisfacción del Paciente , Oncología Médica , Relaciones Médico-Paciente , Neoplasias/diagnóstico , Neoplasias/terapia , Comunicación , Derivación y Consulta
2.
Front Oncol ; 13: 892393, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37645426

RESUMEN

Objectives: To identify combined clinical, radiomic, and delta-radiomic features in metastatic gastroesophageal adenocarcinomas (GEAs) that may predict survival outcomes. Methods: A total of 166 patients with metastatic GEAs on palliative chemotherapy with baseline and treatment/follow-up (8-12 weeks) contrast-enhanced CT were retrospectively identified. Demographic and clinical data were collected. Three-dimensional whole-lesional radiomic analysis was performed on the treatment/follow-up scans. "Delta" radiomic features were calculated based on the change in radiomic parameters compared to the baseline. The univariable analysis (UVA) Cox proportional hazards model was used to select clinical variables predictive of overall survival (OS) and progression-free survival (PFS) (p-value <0.05). The radiomic and "delta" features were then assessed in a multivariable analysis (MVA) Cox model in combination with clinical features identified on UVA. Features with a p-value <0.01 in the MVA models were selected to assess their pairwise correlation. Only non-highly correlated features (Pearson's correlation coefficient <0.7) were included in the final model. Leave-one-out cross-validation method was used, and the 1-year area under the receiver operating characteristic curve (AUC) was calculated for PFS and OS. Results: Of the 166 patients (median age of 59.8 years), 114 (69%) were male, 139 (84%) were non-Asian, and 147 (89%) had an Eastern Cooperative Oncology Group (ECOG) performance status of 0-1. The median PFS and OS on treatment were 3.6 months (95% CI 2.86, 4.63) and 9 months (95% CI 7.49, 11.04), respectively. On UVA, the number of chemotherapy cycles and number of lesions at the end of treatment were associated with both PFS and OS (p < 0.001). ECOG status was associated with OS (p = 0.0063), but not PFS (p = 0.054). Of the delta-radiomic features, delta conventional HUmin, delta gray-level zone length matrix (GLZLM) GLNU, and delta GLZLM LGZE were incorporated into the model for PFS, and delta shape compacity was incorporated in the model for OS. Of the treatment/follow-up radiomic features, shape compacity and neighborhood gray-level dependence matrix (NGLDM) contrast were used in both models. The combined 1-year AUC (Kaplan-Meier estimator) was 0.82 and 0.81 for PFS and OS, respectively. Conclusions: A combination of clinical, radiomics, and delta-radiomic features may predict PFS and OS in GEAs with reasonable accuracy.

4.
J Natl Compr Canc Netw ; 20(2): 193-202, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-35130503

RESUMEN

Gastroesophageal cancers carry poor prognoses, and are a leading cause of cancer-related morbidity and mortality worldwide. Even in those with resectable disease, more than half of patients treated with surgery alone experience disease recurrence. Multimodality approaches using preoperative and postoperative chemotherapy and/or radiotherapy have been established, resulting in incremental improvements in outcomes. Globally, there is no standardized approach, and treatment varies with geographic location. The question remains of how to select the optimal perioperative treatment that will maximize benefit for patients while avoiding toxicities from unnecessary therapies. This article reviews currently available evidence supporting preoperative and postoperative therapy in gastroesophageal cancers, with an emphasis on recent practice-changing trials and ongoing areas of investigation, including the role of immune checkpoint inhibition and biomarker-guided treatment.


Asunto(s)
Neoplasias Esofágicas , Neoplasias Gástricas , Neoplasias Esofágicas/cirugía , Humanos , Recurrencia Local de Neoplasia , Neoplasias Gástricas/tratamiento farmacológico , Neoplasias Gástricas/cirugía
5.
J Gerontol Nurs ; 47(4): 29-34, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-34038248

RESUMEN

The Confusion Assessment Method (CAM) is commonly used to detect delirium but its utility in patients with limited English proficiency (LEP) is not well-established. In the current study, internal medicine nurses at an acute care hospital in Canada were surveyed on the use of the CAM in older adults with LEP. Nurses' perspectives were explored with a focus on barriers to administration. Fifty participants were enrolled (response rate = 47.6%). Twenty-eight (56%) participants stated they could not confidently and accurately assess delirium in patients with LEP. Twenty-nine (58%) participants believed the CAM is not an effective delirium screening tool in the LEP population. Barriers to screening included: challenges with interpretation services, dependence on family members, and fear that the assessment itself may worsen confusion. Our study is the first to describe specific barriers to administering the CAM in patients with LEP. Strategies are required to address these barriers and optimize delirium screening for patients with LEP. [Journal of Gerontological Nursing, 47(4), 29-34.].


Asunto(s)
Delirio , Dominio Limitado del Inglés , Enfermeras y Enfermeros , Anciano , Delirio/diagnóstico , Conocimientos, Actitudes y Práctica en Salud , Humanos , Pacientes Internos
6.
Mol Cell Neurosci ; 47(2): 145-53, 2011 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-21463685

RESUMEN

Oxygen (O2) tension has emerged as a major regulator of stem cell (SC) biology. Low O2 concentrations that are toxic to mature cells can confer advantage to stem and early progenitors, while superoxide stress remains a constant threat in aerobic biology and may be partially avoided through sequestration of SCs in the relatively hypoxic stem or regenerative niche. Using primary retina-derived retinal progenitor cells (RPCs) and the R28 progenitor cell line in vitro, we show that RPCs are sensitive to hydrogen peroxide (H2O2) induced damage and resistant to moderate levels of low oxygen stress (1% O2). Under hypoxic conditions, multipotent RPCs upregulate Epo receptors, and Epo, along with insulin, protects against both superoxide- and severe hypoxia- (0.25% O2) induced apoptosis through activation of the canonical PI3K/Akt/mTOR pathway. This survival advantage is sensitive to inhibitors of PI3K and mTOR. We further demonstrate phosphorylation of the p70S6 ribosomal kinase, a downstream mediator of PI3K/Akt/mTOR and translational activator. Overall, these data confirm that RPCs are sensitive to superoxide stress and resistant to hypoxia and that this resistance is mediated in part by Epo. They further suggest that manipulation of RPCs ex vivo prior to ocular delivery, or the in vivo delivery of exogenous survival factors at the time of cell implantation, could enhance the success of regenerative therapies aimed to restore sight.


Asunto(s)
Hipoxia de la Célula/fisiología , Supervivencia Celular/fisiología , Fosfatidilinositol 3-Quinasas/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismo , Retina/citología , Células Madre/fisiología , Superóxidos/metabolismo , Serina-Treonina Quinasas TOR/metabolismo , Animales , Células Cultivadas , Eritropoyetina/metabolismo , Eritropoyetina/farmacología , Peróxido de Hidrógeno/farmacología , Insulina/metabolismo , Ratones , Oxidantes/farmacología , Fosforilación , Transducción de Señal/efectos de los fármacos , Transducción de Señal/fisiología , Células Madre/citología , Células Madre/efectos de los fármacos , Estrés Fisiológico
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...