Pulmonary Ventilation
Mostrando 25-36 de 440 artigos, teses e dissertações.
-
25. Oferta de oxigênio, remoção de dióxido de carbono, transferência de energia aos pulmões e comportamento da hipertensão pulmonar durante o suporte com oxigenação por membrana extracorpórea: um modelo matemático
RESUMO Objetivo: Descrever a transferência de energia do ventilador mecânico para os pulmões; o acoplamento entre a transferência de oxigênio por oxigenação por membrana extracorpórea venovenosa (ECMO-VV) e o consumo de oxigênio do paciente; a remoção de dióxido de carbono com ECMO; e o efeito potencial da oxigenação venosa sistêmica na press
Rev. bras. ter. intensiva. Publicado em: 13/05/2019
-
26. Negative pressure pulmonary edema: report of case series and review of the literature
Resumo Justificativa e objetivos: O edema pulmonar por pressão negativa ocorre por aumento da pressão negativa intratorácica após inspiração contra via aérea superior obstruída. A pressão gerada é transmitida aos capilares pulmonares e supera a pressão de equilíbrio hidrostático, o que causa extravasamento de líquido para o parênquima pulmona
Rev. Bras. Anestesiol.. Publicado em: 25/04/2019
-
27. Comparação entre técnicas de higiene brônquica em pacientes mecanicamente ventilados: ensaio clínico randomizado
RESUMO Objetivo: Comparar a eficiência das técnicas de vibrocompressão e hiperinsuflação com ventilador mecânico de forma isolada e a associação das duas técnicas (hiperinsuflação com ventilador mecânico + vibrocompressão), na quantidade de secreção aspirada e na alteração de parâmetros hemodinâmicos e pulmonares. Métodos: Ensaio clíni
Rev. bras. ter. intensiva. Publicado em: 14/03/2019
-
28. Effects of manual chest compression on expiratory flow bias during the positive end-expiratory pressure-zero end-expiratory pressure maneuver in patients on mechanical ventilation
RESUMO Objetivo: Avaliar os efeitos da compressão torácica manual (CTM) sobre o flow bias expiratório durante a manobra positive end-expiratory pressure-zero end-expiratory pressure (PEEP-ZEEP) para a remoção de secreção em pacientes sob ventilação mecânica invasiva. O flow bias, que influencia na remoção de secreção pulmonar, foi avaliado pel
J. bras. pneumol.. Publicado em: 11/03/2019
-
29. Evaluation of respiratory dynamics by volumetric capnography during submaximal exercise protocol of six minutes on treadmill in cystic fibrosis patients
Resumo Objetivos: A capnografia volumétrica fornece o padrão de eliminação do CO2, pelo volume expirado por ciclo respiratório e avalia o comprometimento pulmonar. O objetivo do estudo foi avaliar a dinâmica respiratória de indivíduos controles saudáveis e em indivíduos com fibrose cística, em um protocolo de exercício submáximo por seis minuto
J. Pediatr. (Rio J.). Publicado em: 2019-02
-
30. Ventilation-induced changes correlate to pulmonary vascular response and VEGF, VEGFR-1/2, and eNOS expression in the rat model of postnatal hypoxia
Neonatal asphyxia occurs due to reduction in oxygen supply to vital organs in the newborn. Rapid restoration of oxygen to the lungs after a long period of asphyxia can cause lung injury and decline of respiratory function, which result from the activity of molecules that induce vascular changes in the lung such as nitric oxide (NO) and vascular endothelial g
Braz J Med Biol Res. Publicado em: 08/10/2018
-
31. Extended-time of Noninvasive Positive Pressure Ventilation Improves Tissue Perfusion after Coronary Artery Bypass Surgery: a Randomized Clinical Trial
Abstract Objective: To compare the effects of extended- versus short-time noninvasive positive pressure ventilation on pulmonary function, tissue perfusion, and clinical outcomes in the early postoperative period following coronary artery bypass surgery in patients with preserved left ventricular function. Methods: Patients were randomized into two groups
Braz. J. Cardiovasc. Surg.. Publicado em: 2018-06
-
32. 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
-
33. Use of cardiopulmonary exercise testing to assess early ventilatory changes related to occupational particulate matter
Spirometry has been used as the main strategy for assessing ventilatory changes related to occupational exposure to particulate matter (OEPM). However, in some cases, as one of its limitations, it may not be sensitive enough to show abnormalities before extensive damage, as seen in restrictive lung diseases. Therefore, we hypothesized that cardiopulmonary ex
Braz J Med Biol Res. Publicado em: 26/03/2018
-
34. Nitrogen single-breath washout test for evaluating exercise tolerance and quality of life in patients with chronic obstructive pulmonary disease
Pulmonary function tests (PFTs) traditionally used in clinical practice do not accurately predict exercise intolerance in patients with chronic obstructive pulmonary disease (COPD). The aim of this study was to assess whether the nitrogen single-breath washout (N2SBW) test explains exercise intolerance and poor quality of life in stable COPD patients. This c
Braz J Med Biol Res. Publicado em: 26/02/2018
-
35. Effect of prophylactic non-invasive mechanical ventilation on functional capacity after heart valve replacement: a clinical trial
OBJECTIVE: During cardiac surgery, several factors contribute to the development of postoperative pulmonary complications. Non-invasive ventilation is a promising therapeutic tool for improving the functionality of this type of patient. The aim of this study is to evaluate the functional capacity and length of stay of patients in a nosocomial intensive care
Clinics. Publicado em: 2017-10
-
36. Noninvasive Ventilation During Immediate Postoperative Period in Cardiac Surgery Patients: Systematic Review and Meta-Analysis
Abstract Objective: To verify the effectiveness of noninvasive ventilation compared to conventional physiotherapy or oxygen therapy in the mortality rate and prevention of pulmonary complications in patients during the immediate postoperative period of cardiac surgery. Methods: Systematic review and meta-analysis recorded in the International Prospective R
Braz. J. Cardiovasc. Surg.. Publicado em: 2017-08