Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 7 de 7
Filtrar
Mais filtros










Intervalo de ano de publicação
1.
Med. intensiva ; 35(1): [1-7], 20180000. tab, ilus
Artigo em Espanhol | LILACS | ID: biblio-883465

RESUMO

Objetivo: Evaluar si el pretratamiento con anticuerpos monoclonales antiFNTα y anti-IL-6, administrados de manera independiente, atenúa el daño pulmonar en un modelo experimental de lesión pulmonar inducida por la ventilación mecánica. Materiales y Métodos: Se utilizaron 24 ratas Wistar que fueron separadas en cuatro grupos experimentales: 1) bajo Vt (n = 6): Vt 7 ml/kg, PEEP 5 cmH2O, 2) alto Vt (n = 6): Vt 25 ml/kg, ZEEP (PEEP = 0), 3) anti-IL-6 (n = 6): Vt 25 ml/kg, ZEEP y 30 mg/kg de tocilizumab intraperitoneal 24 h antes de la ventilación mecánica, 4) anti-FNTα (n = 6): Vt 25 ml/kg, ZEEP y 100 ug/kg de adalimumab intraperitoneal 24 h antes de la ventilación mecánica. Se evaluaron el daño histológico cuantificado según el puntaje reportado por Villar et al y la hemodinamia medida con la presión arterial media. Los datos fueron analizados con ANOVA y las pruebas de comparaciones múltiples de Dunn y de Tukey. Resultados: En el grupo tratado con anti-FNTα y en los animales tratados con anti-IL-6, se observó un menor daño histológico pulmonar que en el resto de los grupos. Por otro lado, no se encontraron diferencias en la mecánica pulmonar y en la presión arterial media entre grupos. Conclusiones: Bajo estas condiciones experimentales, los anticuerpos monoclonales anti-FNTα y anti-IL-6 mostraron efectos protectores a nivel pulmonar, lo que postula a estas drogas como estrategias promisorias para atenuar la lesión pulmonar inducida por la ventilación mecánica.(AU)


Objective: To evaluate whether pretreatment with monoclonal antibodies, anti- TNFα and anti-IL-6 administered independently attenuates lung damage in an experimental model of ventilator-induced lung injury. Materials and Methods: Twenty-four Wistar rats were used. Animals were divided into four experimental groups: 1) low Vt (n = 6): Vt 7 mL/kg, PEEP 5 cmH2O; 2) high Vt (n = 6): Vt 25 mL/kg, ZEEP (PEEP = 0); 3) anti-IL-6 (n = 6): Vt 25 mL/kg, ZEEP, and intraperitoneal tocilizumab 30 mg/kg, 24 hours prior to mechanical ventilation; 4) anti-TNFα (n = 6): Vt 25 mL/kg, ZEEP, and intraperitoneal adalimumab 100 µg/kg, 24 hours before the VM. Histological damage measured by Villar score, and hemodynamics measured with mean arterial pressure were evaluated. Data were analyzed using ANOVA, Dunn's multiple comparison test and Tukey's multiple comparison test. Results: In groups treated with anti-TNFα and anti-IL-6, less histological damage was observed in comparison with the rest of groups. On the other hand, no statistically significant differences were found in pulmonary mechanics and mean arterial pressure among groups. Conclusions: Under these experimental conditions, monoclonal antibodies anti-TNFα and anti-IL-6 showed protective effects on lungs, indicating that these drugs are promising strategies to attenuate ventilator-induced lung injury (AU)


Assuntos
Animais , Ratos , Ventilação Pulmonar , Lesão Pulmonar , Anticorpos Monoclonais , Síndrome do Desconforto Respiratório do Recém-Nascido , Técnicas de Laboratório Clínico
4.
Med. intensiva (Madr., Ed. impr.) ; 40(3): 169-175, abr. 2016. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-151563

RESUMO

El síndrome de distrés respiratorio agudo (SDRA) constituye una de las entidades más importantes de la medicina crítica dada su elevada incidencia, mortalidad, secuelas a largo plazo y ausencia de un tratamiento farmacológico específico. El patrón histológico característico del SDRA es el daño alveolar difuso (DAD). Aproximadamente el 50% de los pacientes con SDRA tienen DAD; el resto está constituido por un grupo heterogéneo de patrones histológicos, muchos de los cuales constituyen enfermedades bien caracterizadas que, de ser diagnosticadas, podrían beneficiarse de un tratamiento específico. Recientemente se ha demostrado el efecto del DAD en la evolución clínica y analítica del SDRA, por lo cual, el enfoque clásico del SDRA como una entidad definida exclusivamente por variables clínicas, radiológicas y gasométricas podría ser reconsiderado. La presente revisión narrativa procura analizar la necesidad de evolucionar desde el concepto de SDRA como síndrome a SDRA como enfermedad; para ello hemos planteado 4 preguntas que consideramos prioritarias: a) ¿qué es una enfermedad?; b) ¿qué es el DAD?; c) ¿cómo consideran al DAD las distintas definiciones de SDRA?, y d) ¿qué relación existe entre el DAD y el SDRA?


The acute respiratory distress syndrome (ARDS) is currently one of the most important critical entities given its high incidence, rate of mortality, long-term sequelae and non-specific pharmacological treatment. The histological hallmark of ARDS is diffuse alveolar damage (DAD). Approximately 50% of ARDS patients present DAD, the rest is made up of a heterogeneous group of histological patterns, many of which correspond to a well-recognized disease. For that reason, if these patterns could be diagnosed, patients could benefit from a treatment. Recently, the effect of DAD in clinical and analytical evolution of ARDS has been demonstrated, so the classical approach to ARDS as an entity defined solely by clinical, radiological and gasometrical variables should be reconsidered. This narrative review aims to examine the need to evolve from the concept of ARDS as a syndrome to ARDS as a specific disease. So we have raised 4 critical questions: a) What is a disease?; b) what is DAD?; c) how is DAD considered according to ARDS definition?, and d) what is the relationship between ARDS and DAD?


Assuntos
Humanos , Síndrome do Desconforto Respiratório/fisiopatologia , Alvéolos Pulmonares/lesões , Insuficiência Respiratória/fisiopatologia , Cuidados Críticos/métodos , Unidades de Terapia Intensiva/estatística & dados numéricos
5.
Med Intensiva ; 40(3): 169-75, 2016 Apr.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-26754207

RESUMO

The acute respiratory distress syndrome (ARDS) is currently one of the most important critical entities given its high incidence, rate of mortality, long-term sequelae and non-specific pharmacological treatment. The histological hallmark of ARDS is diffuse alveolar damage (DAD). Approximately 50% of ARDS patients present DAD, the rest is made up of a heterogeneous group of histological patterns, many of which correspond to a well-recognized disease. For that reason, if these patterns could be diagnosed, patients could benefit from a treatment. Recently, the effect of DAD in clinical and analytical evolution of ARDS has been demonstrated, so the classical approach to ARDS as an entity defined solely by clinical, radiological and gasometrical variables should be reconsidered. This narrative review aims to examine the need to evolve from the concept of ARDS as a syndrome to ARDS as a specific disease. So we have raised 4 critical questions: a) What is a disease?; b) what is DAD?; c) how is DAD considered according to ARDS definition?, and d) what is the relationship between ARDS and DAD?


Assuntos
Alvéolos Pulmonares/patologia , Síndrome do Desconforto Respiratório , Humanos , Síndrome do Desconforto Respiratório/diagnóstico , Síndrome do Desconforto Respiratório/terapia
6.
Med. intensiva (Madr., Ed. impr.) ; 36(4): 294-306, mayo 2012. ilus
Artigo em Espanhol | IBECS | ID: ibc-103067

RESUMO

La ventilación mecánica es una intervención terapéutica de sustitución temporal de la función ventilatoria enfocada a mejorar los síntomas en los pacientes que sufren insuficiencia respiratoria aguda. Los avances tecnológicos han facilitado el desarrollo de ventiladores sofisticados que permiten visualizar y registrar las ondas respiratorias, lo que constituye una fuente de información muy valiosa para el clínico. La correcta interpretación de los trazados es de vital importancia tanto para el correcto diagnóstico como para la detección precoz de anomalías y para comprender aspectos de la fisiología relacionados con la ventilación mecánica y con la interacción paciente-ventilador. El presente trabajo da una orientación de cómo interpretar las curvas del ventilador mediante el análisis de trazados de presión en la vía aérea, flujo aéreo y volumen en distintas situaciones clínicas (AU)


Mechanical ventilation is a therapeutic intervention involving the temporary replacement of ventilatory function with the purpose of improving symptoms inpatients with acute respiratory failure. Technological advances have facilitated the development of sophisticated ventilators for viewing and recording the respiratory waveforms, which are a valuable source of information for the clinician. The correct interpretation of these curves is crucial for the correct diagnosis and early detection of anomalies, and for understanding physiological aspects related to mechanical ventilation and patient-ventilator interaction. The present study offers a guide for the interpretation of the airway pressure and flow and volume curves of the ventilator, through the analysis of different clinical scenarios (AU)


Assuntos
Humanos , Ventiladores Mecânicos , Respiração Artificial/métodos , Insuficiência Respiratória/terapia , Síndrome Torácica Aguda/terapia , Respiração com Pressão Positiva/métodos
7.
Med Intensiva ; 36(4): 294-306, 2012 May.
Artigo em Espanhol | MEDLINE | ID: mdl-22014424

RESUMO

Mechanical ventilation is a therapeutic intervention involving the temporary replacement of ventilatory function with the purpose of improving symptoms in patients with acute respiratory failure. Technological advances have facilitated the development of sophisticated ventilators for viewing and recording the respiratory waveforms, which are a valuable source of information for the clinician. The correct interpretation of these curves is crucial for the correct diagnosis and early detection of anomalies, and for understanding physiological aspects related to mechanical ventilation and patient-ventilator interaction. The present study offers a guide for the interpretation of the airway pressure and flow and volume curves of the ventilator, through the analysis of different clinical scenarios.


Assuntos
Respiração Artificial , Insuficiência Respiratória/fisiopatologia , Insuficiência Respiratória/terapia , Doença Aguda , Humanos , Respiração
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...