نتایج جستجو برای: ventilation

تعداد نتایج: 47711  

Journal: :Annals of emergency medicine 2009
Bentley J Bobrow Gordon A Ewy Lani Clark Vatsal Chikani Robert A Berg Arthur B Sanders Tyler F Vadeboncoeur Ronald W Hilwig Karl B Kern

STUDY OBJECTIVE Assisted ventilation may adversely affect out-of-hospital cardiac arrest outcomes. Passive ventilation offers an alternate method of oxygen delivery for these patients. We compare the adjusted neurologically intact survival of out-of-hospital cardiac arrest patients receiving initial passive ventilation with those receiving initial bag-valve-mask ventilation. METHODS The autho...

Journal: :American journal of respiratory and critical care medicine 2004
Catherine S H Sassoon Ercheng Zhu Vincent J Caiozzo

Controlled mechanical ventilation induced a profound diaphragm muscle dysfunction and atrophy. The effects of diaphragmatic contractions with assisted mechanical ventilation on diaphragmatic isometric, isotonic contractile properties, or the expression of muscle atrophy factor-box (MAF-box), the gene responsible for muscle atrophy, are unknown. We hypothesize that assisted mechanical ventilatio...

Journal: :Journal of critical care 2018
Lonny Ashworth Yasuhiro Norisue Megan Koster Jeff Anderson Junko Takada Hatsuyo Ebisu

Pressure controlled ventilation is a common mode of ventilation used to manage both adult and pediatric populations. However, there is very little evidence that distinguishes the efficacy of pressure controlled ventilation over that of volume controlled ventilation in the adult population. This gap in the literature may be due to the absence of a consistent and systematic algorithm for managing...

Journal: :Postgraduate Medical Journal 1995

Journal: :Resuscitation 2013
Xudong Hu Andrew Ramadeen Gabriel Laurent Petsy Pui-Sze So Ehtesham Baig Gregory M T Hare Paul Dorian

BACKGROUND Cardiac arrest is an important cause of mortality. Cardiopulmonary resuscitation (CPR) improves survival, however, delivery of effective CPR can be challenging and combining effective chest compressions with ventilation, while avoiding over-ventilation is difficult. We hypothesized that ventilation with a pneumatically powered, automatic ventilator (Oxylator(®)) can provide adequate ...

2017
Paula Caitano Fontela Renata Bernardy Prestes Luiz Alberto Forgiarini Jr. Gilberto Friedman

Objective: To review the literature on the use of variable mechanical ventilation and the main outcomes of this technique. Methods: Search, selection, and analysis of all original articles on variable ventilation, without restriction on the period of publication and language, available in the electronic databases LILACS, MEDLINE®, and PubMed, by searching the terms "variable ventilation" OR "...

2006
Josephine Lau Qingyan Chen Ray W. Herrick

Many studies have shown that floor-supply displacement ventilation systems are better than mixing ventilation systems. The benefits include indoor air quality, thermal comfort, and reduced energy use. The energy benefits depend on the climate conditions. This research compared the energy use of a floor-supply displacement ventilation system in a large industrial workshop with that of a mixing v...

2017
Jenny V. Morris Padmanabhan Ramnarayan Roger C. Parslow Sarah J. Fleming

OBJECTIVES To compare outcomes of children receiving noninvasive ventilation with those receiving invasive ventilation as first-line mode of mechanical ventilation following unplanned intensive care admission. DESIGN Propensity score-matched cohort study analyzing data prospectively collected by the Pediatric Intensive Care Audit Network over 8 years (2007-2014). SETTING Thirty-one PICUs in...

2017
Franciele Plachi Fernando Nataniel Vieira Danilo Cortozi Berton Marli Knorst Alexandre Simões Dias Fernanda Machado Balzan

OBJECTIVES To investigate clinical outcomes according to ventilatory support indication in subjects with chronic obstructive pulmonary disease exacerbation in a "real-life" Emergency Department and to analyze potential predictors of successful noninvasive positive pressure ventilation. METHODS Retrospective cohort performed over an 18-month period, comparing the following patient groups with ...

2013
Kujtim Latifi Vladimir Feygelman Eduardo G. Moros Thomas J. Dilling Craig W. Stevens Geoffrey G. Zhang

PURPOSE The 4D-CT data used for comparing a patient's ventilation distributions before and after lung radiotherapy are acquired at different times. As a result, an additional variable--the tidal volume (TV)--can alter the results. Therefore, in this paper we propose to normalize the ventilation to the same TV to eliminate that uncertainty. METHODS Absolute ventilation (AV) data were generated...

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