Alveolar Recruitment
Mostrando 1-12 de 77 artigos, teses e dissertações.
-
1. Analysis of different levels of positive end-expiratory pressure during lung retrieval for transplantation: an experimental study
Atelectasis and inadequate oxygenation in lung donors is a common problem during the retrieval of these organs. Nevertheless, the use of high positive end-expiratory pressure (PEEP) is not habitual during procedures of lung retrieval. Twenty-one Sprague-Dawley male consanguineous rats were used in the study. The animals were divided into 3 groups according t
Braz J Med Biol Res. Publicado em: 15/07/2019
-
2. Influencia de la caja torácica en el monitoreo de la mecánica respiratoria en síndrome de distrés respiratorio agudo
ABSTRACT The respiratory system mechanics depend on the characteristics of the lung and chest wall and their interaction. In patients with acute respiratory distress syndrome under mechanical ventilation, the monitoring of airway plateau pressure is fundamental given its prognostic value and its capacity to assess pulmonary stress. However, its validity can
Rev. bras. ter. intensiva. Publicado em: 2018-06
-
3. Plano de análise estatística para o Alveolar Recruitment for Acute Respiratory Distress Syndrome Trial (ART). Ensaio controlado randomizado
RESUMO Fundamentação: O estudo Alveolar Recruitment for Acute Respiratory Distress Syndrome Trial (ART) é um ensaio clínico internacional, multicêntrico, randomizado, pragmático e controlado com ocultação da alocação que envolve 120 unidades de terapia intensiva no Brasil, Argentina, Colômbia, Espanha, Itália, Polônia, Portugal, Malásia e Urug
Rev. bras. ter. intensiva. Publicado em: 2017-06
-
4. Efeitos fisiológicos da ventilação de alta frequência usando ventilador convencional em um modelo experimental de insuficiência respiratória grave / Physiological effects of high frequency ventilation with conventional ventilator in an experimental model of severe respiratory failure
Introduction: Acute respiratory distress syndrome (ARDS) has a high incidence and mortality between critical ill patients. The mechanical ventilation is the most important support for these patients with ARDS. However, until now there is an important debate about how is the best ventilatory strategy to use, because the mechanical ventilation if not well set
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/07/2012
-
5. Detecção da abertura e colapso alveolar durante o ciclo ventilatório através da tomografia de impedância elétrica / Tidal recruitment detection by Electrical Impedance Tomography in an experimental model
Introdução: A Abertura e fechamento alveolar a cada ciclo respiratório (TR) é mecanismo de lesão pulmonar associada à ventilação mecânica. É frequente, especialmente em pacientes com lesão pulmonar aguda/ sindrome do desconforto respiratório agudo, mas pode ocorrer em pulmões normais, devido à pressão expiratória final positiva (PEEP) insufic
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/11/2011
-
6. O papel das quimiocinas CCL3, CCL2 e seus receptores na movimentação dentária ortodôntica
Orthodontic tooth movement (OTM) is achieved by the remodeling of periodontal ligament (PDL) and alveolar bone in response to mechanical loading. This process is regulated by pro-inflammatory mediators, such as cytokines and chemokines. CCL2, CCL3 and CCL5 are chemokines involved in osteoclastogenesis and are upregulated in periodontium after mechanical load
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/11/2011
-
7. Impacto da manobra de recrutamento alveolar intraoperatória na função respiratória e hemodinâmica em pacientes submetidos à operação bariátrica por via videolaroscópica / Impact f alveolar recruitment maneuver intraoperative in respiratory function and hemodynamics in patients submitted by the bariatric surgery laparoscopy
Antecedentes e Objetivos: Complicações pulmonares em cirurgias bariátricas são freqüentes, e, por isso, manobras de recrutamento alveolar (MRA) têm sido utilizadas para prevení-las ou reduzí-las no pós-operatório (PO) imediato. O objetivo do estudo foi avaliar o impacto da MRA executada no intra-operatório de pacientes submetidos à cirurgia bari�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/07/2011
-
8. A scanographic assessment of alveolar recruitment and overinflation during high frequence ventilation : preliminary results in three patients
BACKGROUND AND OBJECTIVES: High-frequency ventilation (HFV) may offer an attractive alternative to conventional strategies in the ventilation of the acute respiratory distress syndrome (ARDS) or acute lung injury (ALI) because it can minimize lung injury. Maintaining ventilation between lower and upper inflection points, it can warrant alveolar recruitment w
Publicado em: 2011
-
9. Estudo tomográfico de pressões de colapso alveolar e níveis isogravitacionais em pulmões de pacientes com SDRA e LPA / Tomographic study of alveolar collapsing pressures and isogravitational levels and in the lungs of patients with ARDS and/or ALI
A prospective clinical study performed on 11 patients with ARDS or ALI with the intention of studying the regional behavior of lung tissue density and alveolar collapse along the three spatial axes. An initial recruitment maneuver was followed by multiple semi-complete CT scans at descending levels of PEEP. Multiple linear regression (R2=0.83) showed a gravi
Publicado em: 2009
-
10. O estresse físico modula a mecânica de tecido pulmonar periférico, a expressão de citocinas e o estresse oxidativo em cobaias com inflamação alérgica crônica / Physical stress modulates lung tissue mechanics, cytokines and oxidative stress activation in guinea pigs with chronic allergic inflammation
There are evidences showing that stress can worsen asthma symptoms, but the exact mechanisms that link them are not clarified, especially in the distal lung parenchyma. Recently, the importance of the lung parenchyma has been emphasized in the modulations of the functional alterations, inflammatory and remodeling that characterizes asthma. These alterations
Publicado em: 2009
-
11. Effects of recruitment maneuver during expiration and inspiration analyzed by thoracic CT scan in patients with acute lung injury and acute respiratory distress syndrome / Efeitos da manobra de recrutamento alveolar nas fases inspiratória e expiratória na tomografia computadorizada de tórax em pacientes com lesão pulmonar aguda ou síndrome do desconforto respiratório agudo
The goal of Maximal Recruitment Strategy (MRS) guided by thoracic CT scan is to minimize alveolar collapse and the mechanisms of ventilator induced lung injury (VILI). The objectives of this study were to compare by quantitative analyzes of CT scan image of the lungs obtained during MRS of patients with ARDS, the following parameters: collapse, overdistensio
Publicado em: 2008
-
12. Utilization of the lower inflection point of the pressure-volume curve results in protective conventional ventilation comparable to high frequency oscillatory ventilation in an animal model of acute respiratory distress syndrome
INTRODUCTION: Studies comparing high frequency oscillatory and conventional ventilation in acute respiratory distress syndrome have used low values of positive end-expiratory pressure and identified a need for better recruitment and pulmonary stability with high frequency. OBJECTIVE: To compare conventional and high frequency ventilation using the lower infl
Clinics. Publicado em: 2008