Fig. 1. The high flow nasal cannula (HFNC) system incorporated an air/O2 blender with a flow meter and a heated humidifier. For the HFNC protocols, nasal prongs were connected to the manufacturer's standard circuit. We made 2 holes in a polyvinyl chloride cylinder to simulate adult external...
代冰 曾晓凤 金洪 彭云 谭伟 赵洪文 ʌ摘要ɔ 目的 探讨不同经鼻高流量氧疗(H F N C )设备㊁设置氧浓度㊁设置流量㊁吸气峰流速和潮气量对H F N C 时吸入气氧浓度(F i O 2)的影响㊂方法 使用主动模拟肺(A S L 5000)模拟患者的自主呼吸,调节参数模拟不同潮气量和吸气峰流速的组合,[潮...
Venturi-based flow generators are commonly used for noninvasive continuous positive airway pressure (CPAP) of high-flow nasal oxygen (HFNO). The system is simple and allows to increase the total flow while decreasing the FiO2 starting from a single oxygen source. In this report we describe the...
As we know, low PaO2 is associated with high mortality in critically ill patients [5, 6]. However, although higher PaO2 levels may improve the oxygen delivery, they can also lead to potential harm such as the tissue injury. To correct the effect of FiO2 on the PaO2, the ratio of ...
The FiO2 delivered with standard facemask was calculated as 0.4 with 5–6 l of oxygen, 0.5 with 6–7 l and 0.6 with >7 l of oxygen flow and with non rebreathing mask (NRBM) as 0.9 with 12–15 l of flow. The exact FiO2 was set on the high flow nasal cannula (HFNC) machine ...
This is usually measured at the mouth (respiratory exchange ratio, R, V'CO2/V'O2) and therefore it is extremely difficult, if not impossible, to measure during helmet CPAP or high oxygen flow supplementation (HOF) and, because of the contribution/changes in lung gas stores, R does not ...
Oxygen therapy using a high FiO2 has certain advantages in terms of oxygenation and perfusion at the potential expense of complications related to oxygen toxicity. However, no previous study has tested the effects of a high FiO2 on clinical outcomes in patients undergoing OPCAB. The purpose of ...
more than one job file on the command line, fio will serialize the running of those files. Internally that is the same as using the 'stonewall' parameter described the the parameter section. If the job file contains only one job, you may as well just give the ...
Introduction: It is unknown if set-flow, peak inspiratory flow (PIF), tidal volume, and set fraction of inspired O2 (FiO2 ) affect actual-FiO2 and positive end expiratory pressure (PEEP) during high-flow nasal cannula (HFNC) oxygen therapy. In addition, the extent of their influence is ...
Background The ratio of oxygen saturation (ROX) index, defined as the ratio of oxygen saturation (SpO2)/fraction of inspired oxygen (FiO2) to respiratory rate, can help identify patients with hypoxemic respiratory failure at high risk for intubation following high-flow nasal cannula (HFNC) ...