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1.
Rev. cir. (Impr.) ; 74(3): 248-255, jun. 2022. ilus, tab, graf
Article in Spanish | LILACS | ID: biblio-1407918

ABSTRACT

Resumen Introducción: Si bien actualmente la 8a edición de la clasificación del AJCC para cáncer biliar, recomienda una linfadenectomía con 6 o más GL, su aplicación es escasa. Objetivo: Analizar la aplicabilidad y los resultados de la linfadenectomía en pacientes resecados con fines curativos por cáncer biliar. Materiales y Método: Análisis retrospectivo de pacientes operados por cáncer biliar de 2001 a 2018. Se analizaron variables perioperatorias referidas a la linfadenectomía (número de GL, GL+, morbilidad), comparando supervivencia en pacientes con < 6 y ≥ 6 GL resecados. Resultados: en 72 pacientes resecados por cáncer biliar (46 CaV, 26 CC), se realizaron 66 (91.7%) linfadenectomías N1. En 62.1% (n = 41) se obtuvieron < 6 GL y en el 37.9% (n = 25) ≥ 6 GL. El promedio de GL resecados fue de 5. En 16 (24,2%) linfadenectomías se hallaron GL+ sin diferencias entre ambos grupos. La morbimortalidad global fue de 30,3%, con una mortalidad del 4.5% sin diferencias. Con un seguimiento de 36.9 meses, la supervivencia a 5 años fue 43,7% (n = 17), 7 pacientes con ≥ 6 GL, y 10 pacientes con < 6 GL (p = NS). La supervivencia media en pacientes con GL+ fue 15 meses (6-34 meses). Conclusión: la linfadenectomía ocupa un rol primordial en la cirugía curativa del cáncer biliar, tanto para definir una estadificación y un pronóstico adecuados como para optimizar los resultados de la resección curativa en esta entidad. Su indicación debe ser sistemática con la obtención de un número adecuado de GL acorde a las recomendaciones actuales.


Introduction: Currently the 8th edition of the AJCC classification recommends the resection of 6 or more lymph nodes (LN) in gallbladder cancer and cholangiocarcinoma. However, its implementation is universally scarce. Aim: The goal is to analyze the applicability and results of lymphadenectomy in patients resected with curative purposes in biliary cancer. Materials and Method: a retrospective analysis of patients with biliary cancer (gallbladder carcinoma, intrahepatic and hilar cholangiocarcinoma) treated by curative resection from 2001 to 2018 was performed. Perioperative variables related to lymphadenectomy (LN number, LN positive, related morbidity) were analyzed, comparing survival in patients with < 6 and ≥ 6 resected LN. Results: 72 patients resected for biliary cancer (46 gallbladder cancer, 26 cholangiocarcinoma) were included with 66 (91.7%) N1 lymphadenectomies corresponding to the hepatoduodenal ligament nodes performed. In 62.1% (n = 41) < 6 LN and in 37.9% (n = 25) ≥ 6 LN were resected. Average LN count was 5. In 16 (24.2%) patients positive LN were found, 7 in the group with ≥ 6 LN (28%) vs. 9 in the group with < 6 LN (22%) (p = NS). Overall morbimortality was 30.3% (n = 20). Average follow-up was 36.9 months. Survival at 5 years was 43.7% (n = 17), 7 patients with lymphadenectomy ≥ 6 LN, and 10 patients with < 6 LN (p = NS). Survival mean in patients who had positive LN was 15 months. Conclusión: Lymphadenectomy has a primary role in the radical resection with curative intention for biliary cancer. Systematic indication of lymphadenectomy should be prioritized, with the achievement of an adequately number of LN according to the actual recommendations. Lymphadenectomy is crucial for an adequate staging and prognosis, as well as to optimize the results of curative resection in this entity.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Stomach Neoplasms/surgery , Biliary Tract Neoplasms/surgery , Cholangiocarcinoma , Gastrectomy , Survival Analysis , Retrospective Studies
2.
CES odontol ; 28(1): 57-73, Jan.-June 2015. ilus
Article in Spanish | LILACS | ID: lil-766902

ABSTRACT

Resumen Porphyromonas gingivalis (P.g.) es un cocobacilo Gram negativo que habita el surco gingival. Sus factores patogénicos estructurales como las fimbrias facilitan su adhesión al tejido, mientras que factores de secreción como proteasas y hialuronidasas hidrolizan componentes del tejido periodontal, causando daño tisular y pérdida de soporte dentario. Algunos componentes estructurales de Porphyromonas como los lipopolisacáridos se han asociado a enfermedades sistémicas. En esta revisión se presenta una descripción de los factores patogénicos de Porphyromonas gingivalis y su relación con enfermedad pulmonar, ateroesclerosis y parto pretérmino, haciendo énfasis en los mecanismos moleculares de dicha asociación.


Abstract Porphyromonas gingivalis (P.g.) is a gram-negative coccobacillus that resides in the gingival sulcus. Some of its structural pathogenic factors like fimbriae allow its adhesion to the tissues of the gingival sulcus, where P.g. secretes proteases and hyaluronidases that hydrolyze components of the periodontal tissues, leading to tissue damage and loss of teeth support. Some bacterial components such as lipopolysaccharides have been associated with systemic diseases. This review focuses on the molecular mechanisms linking the pathogenic factors of Porphyromonas gingivalis to diseases such as atherosclerosis, pulmonary disease and preterm birth.

3.
Consult. méd ; 4(13): 19-22, jun. 1995.
Article in Spanish | LILACS | ID: lil-306274

ABSTRACT

Evidences of the relationship between immunological disturbances and diseases are more conclusive every day. IDDM is a good example of an autoimmunne process associated with a severe clinical picture.


Subject(s)
Humans , Diabetes Mellitus, Type 1
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