Article Figures & Data
Figures
- Fig. 1.
Basic setup for high-flow nasal cannula oxygen delivery. An air-oxygen blender, allowing from 0.21 to 1.0 FIO2, generates up to 60 L/min flow. The gas is heated and humidified through an active heated humidifier and delivered via a single-limb heated inspiratory circuit. The patient breathes adequately heated and humidified medical gas through large-diameter nasal cannulas. (Modified from Reference 9.)
- Fig. 2.
Electrical output of the hotplate of an MR850 heated humidifier with an MR290 water chamber (both from Fisher & Paykel). The MR850 was set to maintain temperature at the water chamber outlet at 37°C and at the distal end of the inspiratory limb at 40°C. When flow was 60 L/min, electrical output was always 100%.
- Fig. 3.
Breathing frequency and PaCO2: comparison between high-flow nasal cannula oxygen therapy (HFNC) and comparative therapies in 8 studies. Left: Difference of breathing frequency between comparative therapy and HFNC. In all studies, breathing frequency with HFNC was lower. Right: Difference of PaCO2. Here, no statistically significant differences between the therapies are apparent.
Tables
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- Article
- Abstract
- Introduction
- Adverse Effects of Lack of Humidification
- Humidification Performance of HFNC Devices
- Interface
- Physiological Effect
- Fraction of Inspired Oxygen
- PEEP Effect
- Clinical Trials
- Hypercapnic Respiratory Failure
- Hypoxemic Respiratory Failure
- Postextubation
- Preintubation Oxygenation
- Acute Heart Failure
- Sleep Apnea
- Other Conditions
- Adverse Effects
- Contraindication
- Conclusions
- Footnotes
- References
- Figures & Data
- Info & Metrics
- References