نتایج جستجو برای: tidal volume tv

تعداد نتایج: 349592  

Journal: :American journal of respiratory and critical care medicine 2008
Davide Chiumello Eleonora Carlesso Paolo Cadringher Pietro Caironi Franco Valenza Federico Polli Federica Tallarini Paola Cozzi Massimo Cressoni Angelo Colombo John J Marini Luciano Gattinoni

RATIONALE Lung injury caused by a ventilator results from nonphysiologic lung stress (transpulmonary pressure) and strain (inflated volume to functional residual capacity ratio). OBJECTIVES To determine whether plateau pressure and tidal volume are adequate surrogates for stress and strain, and to quantify the stress to strain relationship in patients and control subjects. METHODS Nineteen ...

Journal: :Clinical science and molecular medicine 1978
A D Milner R A Saunders I E Hopkin

1. Tidal pressure/volume and flow/volume respiratory loops were constructed from records obtained during 98 studies on 48 neonates of various ages and gestations. Records were obtained with a total body plethysmograph and an oesophageal balloon. Total pulmonary resistance was computed at five separate levels in the breathing cycle and results were expressed graphically as tidal resistance profi...

Journal: :American journal of physiology. Lung cellular and molecular physiology 2003
Dean E Schraufnagel Narasimhan P Agaram Aamir Faruqui Sajal Jain Leena Jain Karen M Ridge Jacob Iasha Sznajder

In a past study of hyperoxia-induced lung injury, the extensive lymphatic filling could have resulted from lymphatic proliferation or simple lymphatic recruitment. This study sought to determine whether brief lung injury could produce similar changes, to show which lymphatic compartments fill with edema, and to compare their three-dimensional structure. Tracheostomized rats were ventilated at h...

2002
Dean E. Schraufnagel Narasimhan P. Agaram Aamir Faruqui Sajal Jain Leena Jain Karen M. Ridge Jacob Iasha Sznajder D. E. Schraufnagel

In a past study of hyperoxia-induced lung injury, extensive lymphatic filling occurred that could have resulted from lymphatic proliferation or simple lymphatic recruitment. This study sought to determine if brief lung injury could produce similar changes, to show which lymphatic compartments fill with edema, and to compare their three-dimensional structure. Tracheostomized rats were ventilated...

Journal: :Bone 2005
L J van Ruijven E B W Giesen L Mulder M Farella T M G J van Eijden

Bone loss may affect the structure of cancellous bone. But its effect on trabeculae with different characteristics, like rods and plates, is not accurately known. This study analyzes the effect of bone loss on individual rod-like and plate-like trabeculae. 94 specimens were obtained from mandibular condyles from both dentate and edentate humans and scanned with a micro-CT scanner. The bone volu...

Journal: :Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology 2015
Maria Elaine Trevisan Jalusa Boufleur Juliana Corrêa Soares Carlos Jesus Pereira Haygert Lilian Gerdi Kittel Ries Eliane Castilhos Rodrigues Corrêa

The purpose of this study was to evaluate the electromyographic activity of the accessory inspiratory muscles and the diaphragmatic amplitude (DA) in nasal and mouth-breathing adults. The study evaluated 38 mouth-breathing (MB group) and 38 nasal-breathing (NB group) adults, from 18 to 30years old and both sexes. Surface electromyography (sEMG) was used to evaluate the amplitude and symmetry (P...

2012
Chun Pan Jianqiang Wang Wei Liu Ling Liu Liang Jing Yi Yang Haibo Qiu

BACKGROUND Sepsis could induce indirect acute lung injury(ALI), and pulmonary vasomotor dysfunction. While low tidal volume is advocated for treatment of ALI patients. However, there is no evidence for low tidal volume that it could mitigate pulmonary vasomotor dysfunction in indirect ALI. Our study is to evaluate whether low tidal volume ventilation could protect the pulmonary vascular functio...

2018
Seul-Yong Jeong Ji-Yun Lee

This study evaluated the anti-asthmatic activities of 2,6-di-tert-butyl-4-hydroxymethylphenol (DBHP) that is a potent phenolic antioxidant in edible vegetable oil. The effects of DBHP on bronchial asthma were evaluated by determining the specific airway resistance (sRaw) and tidal volume (TV) during the immediate asthmatic response (IAR) and the late-phase asthmatic response (LAR) in guinea pig...

Journal: :Jornal de pediatria 2011
Celize C B Almeida Armando A Almeida-Júnior Maria Angela G O Ribeiro Marcos T Nolasco-Silva José Dirceu Ribeiro

OBJECTIVES To study changes in the variables of volumetric capnography in children and adolescents with asthma compared with a control group and to investigate their changes with the use of bronchodilators and bronchial provocation test with methacholine. METHODS One hundred and three patients with controlled persistent asthma and 40 healthy volunteers participated in the study. All of them u...

Journal: :Annals of emergency medicine 2014
Darren Alan Braude Isaac Tawil Neal Stuart Gerstein Michael Christopher Carey Timothy Randal Petersen

STUDY OBJECTIVE Bag-valve-mask ventilation remains an essential component of airway management. Rescuers continue to use both traditional 1- or 2-handed mask-face sealing techniques, as well as a newer modified 2-handed technique. We compare the efficacy of 1-handed, 2-handed, and modified 2-handed bag-valve-mask technique. METHODS In this prospective, crossover study, health care providers p...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید