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4.
Actas dermo-sifiliogr. (Ed. impr.) ; 106(6): 493-499, jul.-ago. 2015. tab, graf
Artigo em Inglês | IBECS | ID: ibc-139456

RESUMO

BACKGROUND: The use of the Internet to search for medical information is considered by some physicians as an invasion of their medical domain and a reflection of a lack of trust in their advice and recommendations. OBJECTIVE: The main objective of this study was to estimate the amount of medical information gathered from the Internet and to establish whether these online searches reflect a lower degree of patient satisfaction. PATIENTS AND METHODS: A survey was conducted among 175 patients seen at the melanoma and psoriasis units of San Cecilio University Hospital in Granada, Spain between May 2010 and December 2011. RESULTS: Online searches for medical information were performed by 44.4% of patients who returned correctly completed questionnaires. The main reasons given for these searches were to complement appropriate information provided by the physician (67.3%) and to gather information before consultation with the physician (36.5%). Variables associated with the search for medical information on the Internet in the multivariate analysis were a higher educational level, a higher score on two items in the Need for Cognition Scale, and consultation of mass media other than the Internet. Limitations: Studies with larger numbers of patients and other diseases, however, are required to confirm these results. CONCLUSIONS: The search for medical information is a widespread reality among patients with psoriasis and melanoma and it is not associated with a poor relationship with the physician. Dermatologists can play a beneficial role by recommending trustworthy Internet sites during the patient's visit and by promoting the development of pages by scientific societies to provide high-quality information


ANTECEDENTES: La búsqueda de información médica en Internet es considerada por algunos médicos como una invasión y falta de confianza en su valor como profesional. OBJETIVO: El principal objetivo es estimar la cantidad de información médica proveniente de Internet, y establecer si la búsqueda de información médica en Internet implica un menor grado de satisfacción por parte del paciente. PACIENTES Y MÉTODOS: Fueron incluidos 175 pacientes provenientes de las unidades de melanoma y psoriasis del Hospital Clínico San Cecilio, Granada (España) de mayo de 2010 a diciembre de 2011. RESULTADOS: La búsqueda de información médica en Internet fue realizada por el 44,4% de los pacientes. La principal razón fue complementar la adecuada información aportada por el médico (67,3%) y obtener información antes de la consulta con el médico (36,5%). Las variables asociadas en el análisis multivariante con la búsqueda de información médica en Internet fueron un alto nivel educativo, alta puntuación en la escala «Necesidad de conocimiento» «NFC1 y NFC2» y consultar otros mass media distintos de Internet. Limitaciones: Son necesarios estudios con mayor número de pacientes y otras enfermedades dermatológicas para confirmar los resultados. CONCLUSIONES: La búsqueda de información médica es una realidad muy extendida entre los pacientes con soriasis y melanoma, y no está asociada con una peor relación con el médico. Los dermatólogos pueden desempeñar un papel beneficioso a 2 niveles: recomendando páginas de interés y promoviendo el desarrollo de páginas por sociedades científicas con el fin de proporcionar información de alta calidad


Assuntos
Humanos , Acesso à Informação , Informação de Saúde ao Consumidor/tendências , Comportamento de Busca de Informação , Melanoma/epidemiologia , Psoríase/epidemiologia , Internet , Participação do Paciente/tendências , Relações Médico-Paciente , Coleta de Dados/estatística & dados numéricos , Satisfação do Paciente/estatística & dados numéricos
5.
Br J Dermatol ; 166(1): 54-8, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21848688

RESUMO

BACKGROUND: Psoriasis is a disease in which endothelial cells seem to play an important pathogenic role. No report published to date has examined nail vascularity in patients with psoriasis. OBJECTIVES: To evaluate the vascularity in the nails of patients with psoriasis treated with classic and biologic therapies for comparison with disease-free controls, and to evaluate whether there are differences in nail vascularity among patients with and without nail involvement. METHODS: We performed a prospective study with two cohorts comprising 23 patients with moderate-to-severe psoriasis and 23 controls without psoriasis. We measured the nailfold vessel resistance index (NVRI) in each subgroup. RESULTS: We found significant differences in the NVRI between patients and controls (P<0·001). Among patients with psoriasis, those with nail involvement showed a higher mean±SD NVRI (0·58±0·10) than those without (0·52±0·45). CONCLUSIONS: Psoriasis decreases the blood flow in nails, suggesting that this skin disease confers an independent risk for microvascular changes. This outcome may be associated with greater risk of nail-related signs.


Assuntos
Doenças da Unha/fisiopatologia , Unhas/irrigação sanguínea , Psoríase/fisiopatologia , Resistência Vascular/fisiologia , Adulto , Velocidade do Fluxo Sanguíneo/fisiologia , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Microcirculação/fisiologia , Microvasos/fisiopatologia , Pessoa de Meia-Idade , Estudos Prospectivos , Ultrassonografia Doppler , Adulto Jovem
7.
Actas dermo-sifiliogr. (Ed. impr.) ; 99(supl.1): 2-8, ene. 2008. ilus, tab
Artigo em Es | IBECS | ID: ibc-62892

RESUMO

La psoriasis es una enfermedad cutánea inflamatoria crónica de carácter sistémico y de base inmunológica,mediada por linfocitos T. Estas células juegan un papel importante en el sistema inmunológico y en larespuesta inflamatoria que determina el desarrollo y el mantenimiento de las lesiones de psoriasis. Sin duda,un mejor entendimiento de la fisiopatología de esta enfermedad ha llevado al desarrollo de tratamientos biológicosespecíficos y selectivos. Efalizumab es un anticuerpo monoclonal humanizado IgG1 que se fija al antígeno1 asociado a la función leucocitaria (LFA-1). Al unirse al CD11a –subunidad alfa del LFA-1– se evita lafijación de este ligando a la molécula de adhesión intercelular 1. Esto inhibe varios procesos relacionados con loslinfocitos T, fundamentales en la patogénesis de la psoriasis: la activación de los linfocitos T en el gangliolinfático, la migración de los linfocitos T hacia la dermis y la epidermis y, por último, la reactivación de éstosen el foco inflamatorio. Los estudios clínicos han demostrado que efalizumab, administrado en forma subcutáneauna sola vez por semana, proporciona un beneficio clínico, a la vez que una mejoría en la calidad de vidaen pacientes con psoriasis en placas crónica, moderada o grave. Los estudios de tratamiento a largo plazo sugierenque la terapia continua con efalizumab es más beneficiosa en el mantenimiento de la mejoría de la respuestay demuestran que efalizumab puede ser administrado de forma segura durante períodos prolongados.Dada su eficacia, su rápido comienzo de acción, el perfil de seguridad por su selectivo mecanismo de acción yla conveniencia en su autoadministración subcutánea semanal, efalizumab ofrece una nueva opción terapéuticaespecialmente interesante para el tratamiento de la psoriasis (AU)


Psoriasis is a systemic type T cell mediated immune system chronic inflammatory skin disease. These cells play an important role in the immune system and in the inflammatory response that determines the development and maintenance of the psoriasis lesions. However, greater understanding of the pathophysiology of this disease has led to the development of specific and selective biological treatments. Efalizumab is a humanized IgG1 monoclonal antibody that binds to the Leukocyte-Function-Associated Antigen 1 (LFA-1).When it binds to the CD11a –alpha subunit of LFA1– it inhibits the binding of this lig and to the intercellular adhesion molecule 1. This inhibits several processes related with the T cells that are fundamental in the pathogenesis of psoriasis: activation of the T cells in the lymph nodes, the migration of the T cells towards the dermis and epidermis and finally the reactivation of these in the inflammatory focus. The clinical studies have demonstrated that efalizumab, administered subcutaneously only once a week, provides a clinical benefit as well as improvement in the quality of life in patients with psoriasis with chronic, moderate or severe plaques. Long-term treatment studies suggest that continuous therapy with efalizumab is more beneficial in the maintenance of the improvement of the response and demonstrate that efalizumab may be administered safely for prolonged periods. Given its efficacy, rapid onset action, safety profile due to its selective action mechanism and convenience in its subcutaneous self-administration weekly, efalizumab offers a new therapeutic option, especially of interest for the treatment of psoriasis (AU)


Assuntos
Linfócitos/imunologia , Linfócitos/patologia , Linfócitos/fisiologia , Psoríase/imunologia , Anticorpos Monoclonais/uso terapêutico , Qualidade de Vida , Linfócitos T/patologia , Linfócitos T/fisiologia , Biotransformação/fisiologia , Psoríase/fisiopatologia , Anticorpos Monoclonais/farmacologia , Anticorpos Monoclonais/farmacocinética , Biotransformação
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