منابع مشابه
Positive pressure ventilation: what is the real cost?
Positive pressure ventilation is a radical departure from the physiology of breathing spontaneously. The immediate physiological consequences of positive pressure ventilation such as haemodynamic changes are recognized, studied, and understood. There are other significant physiological interactions which are less obvious, more insidious, and may only produce complications if ventilation is prol...
متن کاملOxygen cost of breathing in postoperative patients. Pressure support ventilation vs continuous positive airway pressure.
In seven postoperative patients with normal preoperative pulmonary function tests, we evaluated the oxygen cost of breathing (VO2resp) during continuous positive pressure ventilation (CPAP) and during a 15 cm H2O inspiratory pressure support ventilation (IPSV). For both periods, VO2 resp was estimated as the difference between total oxygen uptake of the period (VO2tot), measured by a mass-spect...
متن کاملEffect of airway pressure on lumbar epidural pressure during positive pressure ventilation
BACKGROUND The purpose of this study was to measure lumbar epidural pressure (EP) during the insertion of a Tuohy needle under general anesthesia and to evaluate the influence of airway pressure on EP. METHODS Lumbar EP was measured directly through a Tuohy needle during intermittent positive pressure ventilation in fifteen patients. Mean and peak EP were recorded after peak inspiratory press...
متن کاملeffect of positive end-expiratory pressure on central venous pressure in patients under mechanical ventilation
introduction: finding the probable governing pattern of peep and cvp changes is an area of interest for in-charge physicians and researchers. therefore, the present study was designed with the aim of evaluating the relationship between the mentioned pressures. methods: in this quasi-experimental study, patients under mechanical ventilation were evaluated with the aim of assessing the effect of ...
متن کاملEffect of continuous positive airway pressure on inflammatory markers.
www.chestpubs.org that D lco is likely to be an important and relevant prognosis factor in patients with PAH-SSc. ILD, PH due to ILD, and PAH are not the sole causes of D lco impairment in patients with SSc. Nevertheless, for clinical practice, it seems important to highlight the fact that a markedly impaired D lco , 35% to 40% of predicted value in patients with PAH-SSc may be associated with ...
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ژورنال
عنوان ژورنال: Annals of Business Administrative Science
سال: 2018
ISSN: 1347-4456,1347-4464
DOI: 10.7880/abas.0180712b