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1.
Rev. chil. endocrinol. diabetes ; 16(4): 121-123, 2023.
Artigo em Espanhol | LILACS | ID: biblio-1512165

RESUMO

Los inhibidores de checkpoint (ICP) son anticuerpos usados en inmunoterapia contra el cáncer. Uno de sus blancos de acción es el receptor de muerte celular programada-1 (PD-1), el cual es importante para mantener la tolerancia inmunitaria. Sin embargo, este mecanismo se asocia a riesgo de eventos adversos relacionados a la inmunidad que pueden afectar a múltiples órganos incluyendo el sistema endocrino. Se describe el caso inhabitual de un paciente que a los 18 meses de terapia con ICP debutó con cetoacidosis diabética (CAD).


Immune checkpoint inhibitors consist in antibodies used in immunotherapy against cancer. One of their targets is the programmed cell death-1 (PD-1) receptor, which is important in maintaining self-tolerance. However, this mechanism is associated with a risk for immune-related adverse events potentially affecting multiple organs, including the endocrine system. We describe the unusual case of a patient who, after 18 months of treatment with an immune checkpoint inhibitor, debuted with diabetic ketoacidosis


Assuntos
Humanos , Masculino , Pessoa de Meia-Idade , Cetoacidose Diabética/induzido quimicamente , Anticorpos Monoclonais Humanizados/efeitos adversos , Inibidores de Checkpoint Imunológico/efeitos adversos , Neoplasias Cutâneas/tratamento farmacológico , Cetoacidose Diabética/imunologia , Diabetes Mellitus/induzido quimicamente , Pontos de Checagem do Ciclo Celular , Antineoplásicos Imunológicos/efeitos adversos , Imunoterapia/efeitos adversos , Melanoma/tratamento farmacológico
2.
Rev. cir. (Impr.) ; 74(4): 345-353, ago. 2022. tab, graf
Artigo em Espanhol | LILACS | ID: biblio-1407936

RESUMO

Resumen Introducción: En los últimos años, la gastrectomía laparoscópica ha aparecido como una técnica quirúrgica con resultados oncológicos comparables a la técnica abierta, pero existe poca evidencia en cuanto a la calidad de vida posoperatoria de estos pacientes. Objetivo: Evaluar la calidad de vida posoperatoria de pacientes sometidos a gastrectomía total laparoscópica (GTL) en comparación a gastrectomia total abierta (GTA) en cáncer gástrico. Materiales y Método: Estudio retrospectivo, observacional en Hospital Militar de Santiago, entre enero de 2015 y junio de 2020. Se les aplicó 2 encuestas validadas para Chile: EORTC QLQ-30 y EORTC QLQ-OG25. Resultados: Se obtuvieron 60 pacientes; 30 sometidos a GTL y 30 a GTA. Promedio edad fue 66,3 ± 11 años para GTL y 68,2 ± 11 años en GTA (p = 0,5). Se obtuvo un score en GTL versus GTA: global 83,3 y 80,2 (p = 0,6), sintomático 17,1 y 25,5 (p = 0,2) y score funcional 87,9 y 70,9 (p = 0,03). Posterior a eso obtuvimos en funcionalidad GTL versus GTA; física 92,2 versus GTA 73,1 (p = 0,04), emocional 84,1 versus 78,5 (p = 0,6), cognitiva 84,9 versus 79,0 (p = 0,3) y social 80,9 versus 72,2 (p = 0,4). Al analizar síntomas destaco; fatiga 14,6 versus 33,1 (p = 0,04) y dolor 13,4 versus 24,3 (p = 0,05). Finalmente, en síntomas digestivos altos obtuvimos en disfagia 0,84 GTL versus 17,3 GTA (p = 0,04). Conclusión: La GTL logra resultados comparables a GTA en calidad de vida e incluso ofrece ventajas significativas en funcionalidad física como también en síntomas como dolor, fatiga y disfagia.


Introduction: In recent years, laparoscopic gastrectomy has appeared as a surgical technique with oncological results comparable to the open technique, but there is little evidence regarding the postoperative quality of life of these patients. Objective: To evaluate the postoperative quality of life of patients undergoing laparoscopic total gastrectomy (LTG) compared to open total gastrectomy (OTG) in gastric cancer. Materials and Method: Prospective, observational study at Hospital Militar of Santiago, between January 2015 and June 2020. Two surveys validated for Chile were applied: EORTC QLQ-30 and EORTC QLQ-OG25. Results: 60 patients were obtained; 30 subjected to LTG and 30 to OTG. Average age was 66.3 ± 11 years for LTG and 68.2 ± 11 years for OTG (p = 0.5). A score was obtained in LTG versus OTG: global 83.3 and 80.2 (p = 0.6), symptomatic 17.1 and 25.5 (p = 0.2) and functional score 87.9 and 70.9 (p = 0.03). After that we got LTG versus OTG functionality; physical 92.2 versus 73.1 (p = 0.04), emotional 84.1 versus 78.5 (p = 0.6), cognitive 84.9 versus 79.0 (p = 0.3) and social 80.9 versus 72.2 (p = 0.4). When analyzing symptoms I highlight; fatigue 14.6 versus 33.1 (p = 0.04) and pain 13.4 versus 24.3 (p = 0.05). Finally, in upper digestive symptoms, we obtained 0.84 LTG versus 17.3 OTG in dysphagia (p = 0.04). Conclusion: LTG achieves results comparable to OTG in quality of life and even offers significant advantages in physical functionality as well as symptoms such as pain, fatigue and dysphagia.


Assuntos
Humanos , Masculino , Feminino , Criança , Pessoa de Meia-Idade , Qualidade de Vida , Neoplasias Gástricas/cirurgia , Adenocarcinoma/cirurgia , Gastrectomia/efeitos adversos , Demografia , Inquéritos e Questionários , Estudos Retrospectivos
3.
Rev. méd. Chile ; 149(11)nov. 2021.
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1389389

RESUMO

Background: The overall mortality of patients with COVID-19 admitted to intensive care units is approximately 40%. Aim: To describe the characteristics of a cohort of patients with COVID-19 who required invasive mechanical ventilation due to severe hypoxemic acute respiratory failure at a general hospital in Santiago, Chile. Material and Methods: Review of medical records and follow up for 28 days of patients with COVID-19 confirmed by polymerase chain reaction who required invasive mechanical ventilation and who were admitted to the intensive care unit from March 24 to June 7, 2020. Results: Data from 152 patients aged 58 (interquartile range (IQR) 47-65 years (66% men) was analyzed. As of July 5, 36 (24%) had died, 75 (49%) were discharged, 10 (7%) were still on invasive mechanical ventilation, 11 (7%) remained with tracheostomy but without invasive mechanical ventilation, and 20 (13%) were hospitalized in a basic unit. The median time on invasive mechanical ventilation among extubated patients was 14 days (IQR 10-21) and 121 (80%) were in the prone position. Patients who died were older, had a higher frequency of diabetes mellitus and a higher driving pressure at 7 days than those discharged alive from the intensive care unit. Conclusions: In this study mortality was lower than that reported in the first international studies, probably due to the selection of younger patients and greater knowledge of the disease.

5.
Rev. chil. cir ; 70(4): 342-349, ago. 2018. tab, ilus
Artigo em Espanhol | LILACS | ID: biblio-959393

RESUMO

Resumen Introducción: El tratamiento de los tumores estromales gastrointestinales (GIST) de alto riesgo es quirúrgico. Su resultado podría variar al usarse neoadyuvancia. Objetivo: Evaluar si el uso de la terapia neoadyuvante con imatinib puede cambiar el abordaje quirúrgico en los tumores estromales gastrointestinales de alto riesgo. Materiales y Métodos: Se realizó un análisis retrospectivo en el Hospital Clínic de Barcelona entre enero de 2002 y mayo de 2016. Resultados: Se obtuvo un total de 8 pacientes. La edad media fue 66,1 ± 13,3 años. La ubicación del tumor fue de 37,5% (3) en el tercio superior, el 50% (4) en el tercio medio y el 12,5% (1) en el tercio inferior. Debido a la clasificación de riesgo alto, la ubicación y/o la necesidad de resecciones multiviscerales, se indicó, previa evaluación comité oncológico, realizar terapia neoadyuvante. La mediana de tiempo de neoadyuvancia fue de 30 semanas. En el 100% (8) de los casos se logró un cambio de enfoque quirúrgico después de la utilización de imatinib. En todos los casos se realizó un resección local (7 laparoscópica y 1 endolaparoscópica) con márgenes negativos La biopsia posoperatoria mostró un promedio de 51,2% de reducción del tamaño tumoral inicial, lo que resultó en una diferencia estadística (p < 0,01) con el tamaño inicial de las lesiones. Durante el seguimiento, tanto la sobrevida relacionada al tumor como la global, fue de un 100%. Conclusión: La terapia neoadyuvante podría cambiar el abordaje quirúrgico de los pacientes con GIST gástrico de riesgo intermedio o alto mediante la reducción del tamaño tumoral, permitiendo realizar cirugías más económicas y logrando resultados oncológicos adecuados.


Introduction: The treatment of high-risk gastrointestinal stromal tumors (GIST) is surgical. Results may change when using neoadjuvant. Objetive: To evaluated if the use of neoadjuvant therapy with imatinib can change the surgical approach in high risk gastrointestinal stromal tumors (GIST). Materials and Methods: A retrospective analysis was performed from a prospective collected database in Hospital Clinic of Barcelona between January 2002 and May 2016. Results: A total of 8 patients were analyzed with a mean age of 66.1 ± 13.3 years. The tumor location was upper third 37.5% (3) cases, 50% (4) in the middle third and 12.5% (1) in lower third. Because of high risk classification, location and the need of multivisceral resections, neoadjuvant therapy was indicated. The median time of neoadjuvant therapy was 30 weeks. In 87.5% (7) cases a change of surgical approach was achieved after the use of imatinib. In 100% of our series laparoscopic wedge resection was performed achieving negative margins of resection. The postoperative biopsy showed 51.2% of reduction of initial tumor size, resulting in statistical difference (p < 0.01). All patients are alive and 100% of tumor related survival was achieved. Conclusion: Neoadjuvant therapy maybe can change the surgical approach of patients with high-intermediate risk gastric GIST by reducing tumor size. This response also eventually can achieve optimal oncological outcome.


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Neoplasias Gástricas/tratamento farmacológico , Terapia Neoadjuvante/métodos , Tumores do Estroma Gastrointestinal/tratamento farmacológico , Mesilato de Imatinib/uso terapêutico , Antineoplásicos/uso terapêutico , Neoplasias Gástricas/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Laparoscopia , Tumores do Estroma Gastrointestinal/cirurgia
6.
Rev. ANACEM (Impresa) ; 7(3): 142-144, dic.2013. tab
Artigo em Espanhol | LILACS | ID: lil-779302

RESUMO

La Polirradiculoneuropatía Desmielinizante Inflamatoria Crónica (PDIC) es un desorden adquirido de los nervios periféricos y las raíces nerviosas, que se desarrolla de forma continua durante ocho semanas o más. La forma clásica se caracteriza por compromiso simétrico sensitivo y motor, la debilidad está presente tanto en musculatura proximal como distal y es característico en el estudio electrofisiológico la desmielinización junto a disociación albúmino-citológica en Líquido Cefalorraquídeo (LCR). PRESENTACION DEL CASO. Mujer de 34 años con antecedente de depresión en tratamiento, inicia hace un año aproximadamente debilidad muscular de las cuatro extremidades, ascendente y progresiva, llegando a la incapacidad de la marcha. Ingresó al servicio de urgencia del hospital de Puerto Montt, con paraparesia predominante en extremidades inferiores, hipoestesia y ausencia de reflejos osteotendinosos. Estudio electrofisiológico evidencia severa polineuropatía sensitivamotora desmielinizante con degeneración axonal secundaria.LCR con proteinorraquia de 100 mg/dl y sin celularidad. Inició tratamiento con corticoides y luego plasmaféresis, evolucionando con mejoría significativa de la funcionalidad y marcha independiente. DISCUSIÓN. Las principales modalidades terapéuticas de PDIC son la inmunoglobulina intravenosa, glucocorticoides y plasmaféresis. Todos estos parecen ser igualmente efectivos de forma separada. La elección está influenciada por las preferencias del paciente, efectos adversos, costo, duración y disponibilidad. El uso de inmunoglobulina intravenosa es a veces limitado; los corticoides son económicos, pero con efectos adversos frecuentes y relevantes; y la plasmaféresis es cara, invasiva y solamente disponible en centros especializados. La mayoría de los pacientes, responden inicialmente, pero las recaídas son frecuentes...


INTRODUCTION. Chronic inflammatory demyelinating polyradiculoneuropathy(CIDP) is an acquired disorder of peripheral nerves and nerve roots that run continuously for 8 weeks or more. The classic form is characterized by symmetric sensory and motor involvement, weakness is present in both proximal and distal muscles and is characteristic in the electrophysiological study demyelination with albumin-cytological dissociation in cerebrospinal fluid (CSF). PRESENTATION OF THE CASE.34-year-old woman with a history of depression in treatment, started about a year ago muscle weakness of all limbs, ascending and progressive, leading to the inability of the march. Was admitted with paraparesis, predominantly in lower extremities, hypoesthesia and absence of tendon reflexes. Electrophysiological study evidence severe demyelinating motor sensory polyneuropathy with secondary axonal degeneration. CSF protein concentration of 100 mg / dL and no cellularity. Starts treatment with corticosteroids and plasmapheresis, evolving with significant improvement in functionality and independent walking. DISCUSSION. The main therapeutic modalities in CIDP are intravenous immunoglobulin, corticosteroids and plasmapheresis. All these seem to be equally effective separately. The choice is influenced by patient preference, adverse effects, cost, duration and availability. The use of intravenous immunoglobulinis sometimes limited; corticosteroids are inexpensive, but with frequent and significant side effects; and plasmapheresis is expensive, invasive and only available at specialized centers. Most patients respond initially but relapses are frequent...


Assuntos
Humanos , Adulto , Feminino , Anti-Inflamatórios , Metilprednisolona/uso terapêutico , Plasmaferese , Polirradiculoneuropatia Desmielinizante Inflamatória Crônica
7.
Artigo em Espanhol | LILACS | ID: lil-660043

RESUMO

La periodontitis crónica es una patología infecciosa, causada por un complejo de especies bacterianas, que afecta principalmente los tejidos de inserción de los dientes. La respuesta inmune-inflamatoria producida se caracteriza por la presencia de un infiltrado inflamatorio, en el cual los macrófagos representan entre 5 al 30 por ciento. Es sabido que los macrófagos se activan mediante dos vías: Clásica y Alterna, caracterizadas por la presencia de marcadores indirectos: IFN-y e IL-6 para la vía clásica e IL-4 para la vía alterna, ampliamente abordados. Recientemente, se ha descrito a la subunidad A del factor XIII de la coagulación (FXIII-A) como un buen marcador de la vía alterna. El objetivo de este estudio consiste en determinar la presencia de IFN-y, IL-6, FXIII-A e IL-4 como marcadores de las vías de activación de los macrófagos, en pacientes con periodontitis crónica. Para tal efecto, se realizó inmunohistoquímica y Western-Blot para los cuatro marcadores junto a CD-68, marcador de macrófagos, en 18 biopsias de tejido periodontal sano y 18 con periodontitis crónica. Se detectó la presencia de IFN-y, IL-6, IL-4 y FXIII-A junto a CD68+, en todas las muestras de pacientes sanos y con periodontitis. Los resultados obtenidos sugieren que al estar presente IFN-y, IL-6, IL-4 y FXIII-A, los macrófagos se activarían a través de ambas vías, lo cual, produciría una respuesta tanto proinflamatoria (Th1) como antinflamatoria (Th2). Son necesarios más estudios para determinar si existe una vía preferencial de activación.


Periodontitis is a chronic infectious disease caused by a bacterial species complex, which affects mainly the insertion tissues of the teeth. The immune-inflammatory response produced is characterized by an inflammatory infiltrate in which macrophages represent between 5 to 30 percent. It is known and has been widely discussed that macrophages are activated in two ways: Classical and Alterna, characterized by the presence of indirect markers: IFN-y and IL-6 for the classical pathway and IL-4 for the alternative pathway. Recently the subunit A of the clotting factor XIII (FXIII-A) has been described as a good marker of the alternative pathway. The objective of this study is to determine the presence of IFN-y, IL-6, IL-4 and FXIII-A as markers of the macrophage activation pathways in patients with chronic periodontitis. To this end, we performed immunohistochemistry and Western blot for the four markers with CD68 macrophage marker, in 18 healthy periodontal tissue biopsies and 18 with chronic periodontitis. We detected the presence of IFN-y, IL-6, IL-4 and FXIII-A with CD68 +, in all samples of healthy patients and periodontitis. The results suggest that when present, IFN-y, IL-6, IL-4 and FXIII-A, activate macrophages through both routes, which would produce a proinflammatory response (Th1) as antiinflammatory (Th2). Further studies are necessary to determine whether there is a preferential pathway activation.


Assuntos
Humanos , Adulto , Ativação de Macrófagos , Macrófagos/imunologia , Biomarcadores/análise , Periodontite Crônica/patologia , Fator XIIIa/análise , Imuno-Histoquímica , Interferon gama/análise , /análise , Periodontite Crônica/imunologia
8.
Arch. latinoam. nutr ; 61(4): 414-422, dic. 2011. ilus, graf, mapas, tab
Artigo em Espanhol | LILACS | ID: lil-702750

RESUMO

El objetivo del estudio es conocer la sobrevivencia del probiótico Lactobacillus paracasei ssp paracasei agregado durante el procesamiento de Gauda semidescremado, durante maduración (21días) y en comercialización (14 días), así como la influencia de este organismo sobre la calidad del producto. Los tratamientos fueron: T1 (testigo): Gauda de contenido de grasa normal; T2: Queso Gauda semidescremado, QGS; T3: QGS, con probiótico adicionado junto al agregado del cultivo iniciador; T4: QGS, con probiótico adicionado al cocimiento de la cuajada. Para el recuento del probiótico se usó la metodología descrita por la Asociación de Salud Pública Americana (APHA), proteólisis por método de tirosina soluble en ácido tricloroacético (TCA) y, los análisis físicos y químicos por métodos estandarizados en Normas de la Federación Internacional de la Leche y Normas chilenas. Los recuentos obtenidos fueron de 108 ufc/g y 107 ufc/g en los quesos con adición del probiótico (T3 y T4, respectivamente) cerca del nivel de inóculo (108 ufc/g), durante el período de estudio (35días). La proteólisis se incrementó en forma normal y fue similar en todos los tratamientos durante los 35 días estudiados. Los tratamientos con reducción de grasa presentaron, aproximadamente, un 31% menos de grasa que el tratamiento testigo, y mayor humedad. Entre los tratamientos no se evidenció diferencias en sabor y apreciación general, en cambio los quesos con reducción de grasa resultaron más firmes, menos cohesivos y similares en elasticidad que el testigo.


The objective of this study is to infer the survival of the probiotic Lactobacillus paracasei ssp paracasei added during the processing of low-fat Gouda cheese during the maturation (21 days) and the commercialization (14 days), in order to see the influence that this organism has on the quality of the product. The treatments were: TI (control): Gouda with normal fat content; T2: Low fat Gouda cheese (QGS) T3: QGS, with additional probiotic added with the initial culture; T4: QGS, with the probiotic added in the cooking of the curd. For the count of the probiotic, the methodology was used set forth by the American Public Health Association, (APHA), proteolysis by the method of soluble tyrosine in trichloroacetic acid (TCA), and the physical and chemical analysis using the methods standardized by the International Dairy Federation, and Chilean normative. The counts obtained were from 108 ufc/g y 107 ufc/g in the cheeses that had the probiotic additive (T3 and T4, respectively) close to the level of innocuous (108 ufc/g) during the study period of 35 days. The proteolysis incremented normally, and was the same in all of the treatments during the 35 days studied. The treatments with fat-reduction presented approximately, 31% less fat than the control treatment, and also higher moistness. Within the treatments, there was no evidence of taste and general feel; in turn the cheeses with the reduction of fat resulted firmer, less cohesive, than the control, and with similar elasticity.


Assuntos
Queijo/microbiologia , Microbiologia de Alimentos , Tecnologia de Alimentos , Lactobacillus/fisiologia , Probióticos/análise , Contagem de Colônia Microbiana , Paladar
9.
Indian J Dermatol Venereol Leprol ; 2010 Nov-Dec; 76(6): 682-685
Artigo em Inglês | IMSEAR | ID: sea-140729

RESUMO

Bacillary angiomatosis is a recently described infectious disease that usually affects immunosupressed hosts with a previous history of contact with cats. We report a rare case of bacillary angiomatosis in an immunocompetent 59-year-old woman with no history of previous exposure to cats, and atypical clinical features (fever and subcutaneous nodules with ulceration on the left ankle). Histopathology of the lesion showed extensive ulceration and reactive tumor-like vascular proliferation of the blood vessels with swollen endothelial cells and an inflammatory infiltrate including neutrophils and lymphocytes in the dermis and subcutis. Staining with the Warthin-Starry method demonstrated the presence of clustered bacilli located in the extracellular matrix adjacent to the proliferating endothelial cells. Diagnosis was confirmed with the detection of Bartonella spp. DNA in the affected skin and in bone marrow using polymerase chain reaction.

10.
Rev. salud pública ; 12(5): 701-712, oct. 2010.
Artigo em Espanhol | LILACS | ID: lil-592790

RESUMO

Objetivo Contribuir al conocimiento sobre el acceso a los servicios en Colombia tras la reforma del sistema de salud, exponiendo los principales resultados y vacíos en las investigaciones. Métodos Se realizó una revisión sistemática de la bibliografía, a través de la búsqueda exhaustiva y análisis de artículos originales publicados entre 1994 y 2009. Se incluyeron 27 investigaciones cuantitativas y cualitativas que cumplían los criterios de selección. El análisis se enmarcó en los modelos teóricos de Aday y Andersen y Gold, que diferencian entre acceso potencial y realizado y consideran las características de la población, proveedores y aseguradoras que influyen en la utilización. Resultados Los análisis explicativos de la utilización de los servicios de salud a partir de modelos de determinantes resultan escasos y parciales (limitados a áreas geográficas, patologías o colectivos específicos). Pocos estudios profundizan en factores de contexto -políticas y características de proveedores y aseguradoras- o en la perspectiva de los actores sobre los factores que influyen en el acceso. Los estudios no parecen indicar un aumento del acceso realizado -salvo en el régimen subsidiado- y, en cambio, señalan la existencia de importantes barreras relacionadas con factores poblacionales (aseguramiento, renta y educación) y características de los servicios (accesibilidad geográfica, organizativas y calidad). Conclusiones La revisión muestra limitaciones importantes en el análisis del acceso en Colombia que indican la necesidad de reorientar la evaluación hacia el acceso realizado, e incorporar variables de contexto y la perspectiva de los actores para comprender mejor el impacto de la reforma en el uso de servicios.


Objectives Contributing towards improving knowledge about access to health services in Colombia following health-sector reform, highlighting the main results and gaps in research. Methods Original papers were systematically reviewed through a comprehensive search and analysis of original papers published between 1994 and 2009. After selection criteria had been applied, 27 papers were included in the review. Analysis was based on Aday Aday & Andersen and Gold's theoretical frameworks, distinguishing between potential and actual healthcare access and considering the characteristics of the population, health services and insurers influencing service use. Results There was little explanatory analysis of service use applying determinant models; this was also partial (limited to geographical areas, diseases or specific groups). Likewise, only a few studies analysed contextual factors influencing service use (health policies and health providers and insures) or social actors' perspectives. The available studies did not seem to indicate increased actual access (except for subsidised system users) but, on the contrary the existence of barriers relating to population (insurance coverage, income and education) and health service factors (geographic and organizational accessibility and quality of care). Conclusions This review led to identifying important limitations in the analysis of healthcare access in Colombia and highlighted the need for further research on actual access and the better incorporation of context variables and actors perspectives in understanding the impact of reform on health service use.


Assuntos
Humanos , Acessibilidade aos Serviços de Saúde , Colômbia
11.
Rehabil. integral (Impr.) ; 5(1): 40-45, jun. 2010. ilus
Artigo em Espanhol | LILACS | ID: lil-654558

RESUMO

The virtual reality is a technology that has about 50 years of evolution, but it’s in the last two decades that instances have been generated for its development in the medical scope, especially in cognitive and motor rehabilitation. It has made great advances in this field, for example at Laboratory of Innovations in Rehabilitation Technology (LIRT), University of Haifa, Israel, at the IREX platform. This paper provides an approach to this emergent technology; identify their strengths, weaknesses, opportunities and threats, giving some simple technical considerations, in order to promote its application and investigation.


La realidad virtual es una tecnología con cerca de 50 años de evolución, pero es en estas últimas dos décadas en que se han generado instancias para su desarrollo en el ámbito médico, en particular en lo referente a la rehabilitación motora y cognitiva. Se han efectuado grandes avances en este campo, como por ejemplo, en el grupo de trabajo del Laboratory of Innovations in Rehabilitation Technology (LIRT) de la Universidad de Haifa, Israel, fundamentalmente en la plataforma IREX. El presente artículo pretende hacer una aproximación a esta tecnología emergente; identificar sus fortalezas, oportunidades, debilidades y amenazas, entregando algunas consideraciones técnicas de manera simple, con el fin de promover su aplicación e investigación.


Assuntos
Simulação por Computador , Reabilitação/tendências , Terapêutica
12.
Artigo em Espanhol | LILACS | ID: lil-627528

RESUMO

Propósito: Las periodontitis representan un grupo heterogéneo de infecciones periodontales cuya etiología son las bacterias residentes en el biofilm subgingival. Aunque este biofilm está constituido por una amplia variedad de especies bacterianas, sólo un número limitado de especies, como Porphyromonas gingivalis, se ha asociado a la etiología de la enfermedad. P. gingivalis expresa diversos factores de virulencia que pueden causar daño directo a los tejidos del hospedero; sin embargo, su mayor patogenicidad involucra la inducción de una respuesta inmuno-inflamatoria, durante la cual se secretan una amplia variedad de citoquinas, quimioquinas y mediadores inflamatorios que pueden inducir la destrucción de los tejidos de soporte de los dientes y la pérdida de ellos. Método: En esta investigación, se evaluó si los distintos serotipos capsulares (K) de P. gingivalis pueden determinar los niveles de síntesis de RANKL, citoquina clave en la destrucción del hueso alveolar durante la periodontitis. Para ello, se cuantificaron los niveles de expresión de RANKL mediante PCR cuantitativa y los niveles de secreción mediante ELISA en linfocitos T activados en presencia de los serotipos capsulares K1-K6 de P. gingivalis, y estos se correlacionaron a los niveles de expresión de los factores de transcripción asociados a cada uno de los fenotipos de linfocitos efectores: Th1 (T-bet), Th2 (GATA-3), Th17 (RORC2) y Treg (Foxp3). Resultados: Mayores niveles de expresión y secreción de RANKL fueron detectados en linfocitos T activados en presencia de los serotipos K1 y K2 de P. gingivalis, en comparación a los detectados ante los otros serotipos. Además, estos mayores niveles de RANKL se correlacionaron positivamente con los niveles de expresión de RORC2. Conclusión: Estos datos demuestran que la síntesis de RANKL por linfocitos T se restringe a ciertos serotipos capsulares de P. gingivalis (K1 y K2) y permiten sugerir que los serotipos K1 y K2 de P. gingivalis podrían asociarse...


Aim: Periodontitis represents a heterogenic group of periodontal infections elicited by bacteria residing at the subgingival biofilm. Although this biofilm is constituted by a broad variety of bacterial species, only a limited number has been associated with the periodontitis aetiology, among them Porphyromonas gingivalis. P. gingivalis express a number of virulence factors that contribute to direct tissue damage; however, their pathogenicity relies mainly on the induction of a host immuno-inflammatory response. This leads to the release of a broad array of cytokines, chemokines and inflammatory mediators, which cause destruction of the tooth-supporting alveolar bone and ultimately tooth loss. Method: In the present investigation, in order to determine whether different P. gingivalis serotypes might lead to a differential RANKL synthesis, a key cytokine involved in alveolar bone resorption, the mRNA expression and secretion of RANKL and the expression of transcription factors T-bet, GATA-3, RORC2 and Foxp3, the master-switch genes controlling the Th1, Th2, Th17, and Treg cell differentiation, respectively, were analyzed on human T cells activated with different P. gingivalis capsular (K) serotypes. Results: T lymphocytes responding to P. gingivalis serotypes K1 or K2, but not to the other serotypes, led to an increased expression and secretion of RANKL. In addition, these higher RANKL levels correlate with RORC2 expression upon activation with K1 or K2 serotypes. Conclusion: These data demonstrated that RANKL expression and secretion by T lymphocytes was restricted to particular P. gingivalis serotypes (namely K1 and K2), and allowed to suggest a link between these serotypes with alveolar bone destruction and teeth loosening during the periodontitis.


Assuntos
Humanos , Cápsulas Bacterianas , Porphyromonas gingivalis , Ligante RANK , Linfócitos T , Ensaio de Imunoadsorção Enzimática , Periodontite , Reação em Cadeia da Polimerase , Sorotipagem
14.
Rev. méd. Chile ; 137(8): 1105-1112, ago. 2009. tab
Artigo em Espanhol | LILACS | ID: lil-532004

RESUMO

There is a 10 years teaching experience for fourth year medical students and interns in a Chilean private hospital. The students attend an eight weeks practical course. The interns rotate during 16 weeks by specialties and make shifts. The hospital structure with Clinical Services and Medical-Surgical departments facilitates the teaching process. There are approximately 30,000 admissions per year with a mean stay of 3.7 days, that allow the students to be in touch with patients with different diseases that are managed with updated technology. We emphasize the ethical and clinical management of concrete problems of patients, self ¡earning and communication skills. The students evaluate their stay answering surveys and with semi structured interviews. Teaching is assessed by tutors and heads of departments, in clinical rounds, sometimes prepared by the students, by a thorough revision of problem oriented medical records and with practical and theoretical tests. The results of the program have been quite satisfactory for participants.


Assuntos
Humanos , Educação de Graduação em Medicina/métodos , Medicina Interna/educação , Chile , Educação de Graduação em Medicina/normas , Hospitais Privados , Hospitais de Ensino
15.
Rev. chil. reumatol ; 25(1): 13-16, 2009. ilus
Artigo em Espanhol | LILACS | ID: lil-526895

RESUMO

Objetivo y método: Evaluar la correlación entre la electromiografía (EMG) y la ultrasonografía (US) de 19 pacientes con síndrome del túnel carpiano (STC) clínico. Resultados: Debieron ser descartados dos pacientes por presentar nervios medianos bíjidos. Se hallaron 15 nervios medianos con US alterada y18 nervios medianos con electromiografía alterada. Se encontró correlación positiva entre US y electromiografía en 12/24 túneles carpianos, y se observó una concordancia de lateralidad entre el tamaño del nervio y su alteración electrofisiológica en cinco pacientes. Se detectó sinovitis de muñeca en seis túneles carpianos (dos pacientes con artritis reumatoide, uno con osteoartritis erosiva). Conclusión: La US músculo-esquelética es una herramienta complementaria a la electromiografía en el estudio del STC en el paciente reumático, aportando información adicional con relación a la patología de base.


Objective: Compare high-resolution ultrasonography (US) and electromyography (EMG) of 19 patients with carpal tunnel syndrome (CTS) Results: Two patients were ruled out because of bifid median nerves. We found 15 median nerves with abnormal US appearance and 18 median nerve with abnormal EMG. We found a positive correlation between US and EMG in 12/24 carpal tunnels, and lateral agreement between nerve size and EMG alteration in 5 patients. Wrist synovitis was detected in six carpal tunnels (two patients with rheumatoid arthritis and one with osteoarthritis). Conclusion: Musculoskeletal ultrasound is a complementary tool to electromyography in the CTS study of rheumatologic patients, thus providing additional information in relation to the basal pathology.


Assuntos
Humanos , Feminino , Adulto , Pessoa de Meia-Idade , Eletromiografia , Síndrome do Túnel Carpal/diagnóstico , Ultrassonografia , Mãos/inervação , Nervo Mediano/fisiopatologia , Nervo Mediano , Síndrome do Túnel Carpal/fisiopatologia
16.
Rev. cienc. salud (Bogotá) ; 4(1): 5-9, jun. 2006.
Artigo em Espanhol | LILACS, COLNAL | ID: lil-635845

RESUMO

Hace ya tiempo que se identifican la inequidad y la eficiencia como problemas centrales que afectan a los sistemas de salud de Latinoamérica y el Caribe. Como respuesta a dichos problemas, en las últimas dos décadas muchos países de la región han llevado a cabo reformas en la financiación y provisión de sus servicios de salud. Estas reformas, fuertemente influidas por el pensamiento neoliberal, con-templan la búsqueda de una asignación más eficiente de los recursos mediante la introducción de mecanismos de mercado, entre otras medidas, a través de diferentes formas de organizar el sector. En relación a las transformaciones de la organización del sector, tanto en países desarrollados como en desarrollo, se han promovido formas diversas de integración delos servicios de salud, entre las que se encuentran las Redes Integradas de Servicios de Salud.


Inequity and efficiency have long been identified as central problems affecting health systems in Latin America and the Caribbean. In response to these problems, in the last two decades many countries in the region have carried out reforms in the financing and provision of their health services. These reforms, strongly influenced by neoliberal thinking, include the search for a more efficient allocation of resources by introducing market mechanisms, among other measures, through different ways of organizing the sector. In relation to the transformations in the organization of the sector, both in developed and developing countries, various forms of integration of health services have been promoted, among which are the Integrated Health Services Networks.


Assuntos
Humanos , Serviços de Saúde , Países Desenvolvidos , Países em Desenvolvimento , Eficiência , Integração Social
18.
Rev. Hosp. Clin. Univ. Chile ; 16(3): 204-210, 2005. tab, graf
Artigo em Espanhol | LILACS | ID: lil-531908

RESUMO

Existe mayor mortalidad y morbilidad entre los recién nacidos (RN) que mantienen una depresión cardiorrespiratoria a los cinco minutos de vida a pesar de las maniobras de reanimación. Objetivos: individualizar los factores de riesgo que se asocian a esta condición. Pacientes y método: se estudian los recién nacidos con Apgar menor o igual a tres en el período de enero 2003 a mayo del 2004. Se separan en dos subgrupos. Aquellos que se recuperan con maniobras de reanimación y aquellos RN que mantienen la depresión cardiorrespiratoria a los cinco minutos . Las variables estudiadas fueron peso de nacimiento, edad gestacional (EG) en semanas, la relación entre EG y peso, edad materna, multiparidad, morbilidad materna, factores fetales y ovulares. Resultados. De un total de 1705 RN, 64 RN presentan Apgar menor o igual a tres al minuto de vida. 22 RN ( 34,4 por ciento) no mejoran con las maniobras se reanimación a los 5 minutos. De las variables estudiadas son estadísticamente significativas para mantener una depresión severa al nacer, el extremo bajo peso de nacimiento, edad gestacional baja y la condición de ser pequeño para la edad gestacional (PEG). La mortalidad en este grupo es significativamentemayor. Conclusión Los RN que mantienen depresión a los cinco minutos tienen un peso de nacimiento y EG significativamente menor que aquellos que se recuperan con las maniobras de reanimación y tienen mortalidad significativamente mas alta.


A high rate of morbidity and mortality is present among newborns that maintain a cardiorespiratorydepression at five minutes of life in spite of resuscitation maneuvers. Therefore, it is important to know whichrisk factors are associated with this condition. In the time period between January 1, 2003 and May 1, 2004 there was a total of 1,705 alive newborns. Of these 64 (3,75 percent)had an Apgar score of three or less at a minute of life. Among these there were 22 newborns (34,4 percent) that did not improve with resuscitation maneuvers at 5 minutes of life. Amongst the studiedfactors stand out that newborns that presented prolonged depression had birth weight and gestational age significantly lower than those who recover with resuscitation maneuvers. The newborns with cardiorespiratory depression at 5 minutes of life havealmost twice the mortality rate of those born depressed but that improve before 5 minutes of life.


Assuntos
Humanos , Masculino , Feminino , Recém-Nascido , Índice de Apgar , Doenças do Recém-Nascido/etiologia , Doenças do Recém-Nascido/mortalidade , Respiração , Mecânica Respiratória , Recém-Nascido/metabolismo , Idade Gestacional , Parto
19.
Mem. Inst. Oswaldo Cruz ; 96(8): 1135-1136, Nov. 2001.
Artigo em Inglês | LILACS | ID: lil-304653

RESUMO

The seroprevalence of Chlamydia pneumoniae and Mycoplasma pneumoniae in hantavirus seronegative patients, who had symptoms and signs compatible with pneumonia was established. For this purpose we used the indirect fluorescent antibody test. Titers > or =1:16 for C. pneumoniae and M. pneumoniae were found in 8.6 percent and 17.1 percent of the serum, respectively, showing evidence of recent or current infection


Assuntos
Humanos , Adolescente , Adulto , Pessoa de Meia-Idade , Criança , Anticorpos Antibacterianos/sangue , Chlamydophila pneumoniae , Mycoplasma pneumoniae , Idoso de 80 Anos ou mais , Técnica Indireta de Fluorescência para Anticorpo , Orthohantavírus , Pneumonia Bacteriana , Estudos Retrospectivos
20.
Rev. méd. Chile ; 128(10): 1093-100, oct. 2000. tab, graf
Artigo em Espanhol | LILACS | ID: lil-277201

RESUMO

Background: Fetal drug addiction is a serious public health problem. In the United States 10 to 15 percent of children have been exposed "in utero" to cocaine. In a Chilean public health service, more than 200 offspring of cocaine free base abuser have been detected. Aim: To analyze the clinical and social features of 100 children exposed to cocaine free base during fetal development. Patients and methods: Clinical features of children born from cocaine free base consume mothers were described at birth. During subsequent follow up, growth and development, disease episodes, developmental alterations and social situation were recorded. Data was compared with other newborns from the same health service. Results: Compared to their normal counterparts, exposed children has a lower birth weight, the frequency of premature babies was thrice higher, and small-for-gestational age children were four times more common. There was also a higher prevalence of cardiac malformations, seizures and apnea. Hospital admissions were more frequent, prolonged and required more complex facilities. During follow up, undernutrition and stunting were more prevalent. Psychomotor retardation was present in 67 percent of children and behavioral disturbances in 93 percent. Most of these children are governmental protection. Conclusions: Strategies to prevent drug abuse during pregnancy and its devastating medical and social consequences should be urgently developed


Assuntos
Humanos , Feminino , Gravidez , Recém-Nascido , Adolescente , Adulto , Doenças Fetais/epidemiologia , Retardo do Crescimento Fetal/etiologia , Troca Materno-Fetal/efeitos dos fármacos , Anormalidades Induzidas por Medicamentos/epidemiologia , Transtornos Relacionados ao Uso de Cocaína/complicações , Complicações na Gravidez , Estado Nutricional , Seguimentos , Desenvolvimento Fetal/efeitos dos fármacos , Alcoolismo/complicações , Doenças Fetais/etiologia , Fatores Socioeconômicos , Transtornos do Espectro Alcoólico Fetal/epidemiologia , Hospitalização/estatística & dados numéricos , Recém-Nascido de muito Baixo Peso , Transtornos Relacionados ao Uso de Cocaína/epidemiologia
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