Publications by authors named "Corina Quiroga"
Background: Oxygen therapy via high-flow nasal cannula generates physiologic changes that impact ventilatory variables of patients. However, we know that there are detrimental effects on airway mucosa related to inhalation of gases. The objective of this study was to evaluate the performance in terms of absolute humidity, relative humidity, and temperature of different brands of heated humidifiers and circuits in the invasive mode during the use of high-flow oxygen therapy in flows between 30 and 100 L/min.
View Article and Find Full Text PDFBackground: We sought to evaluate the performance in terms of absolute humidity (AH), relative humidity (RH), and temperature of different heated humidifiers (HH) and circuits that are commonly used to deliver high-flow oxygen therapy in conventional ranges (30-60 L/min) and unconventional ranges (70-100 L/min).
Methods: In this prospective, observational study, an electronic thermohygrometer was used to obtain the required measurements. A mechanical ventilator was used as a source for high-flow nasal cannula oxygen therapy.
Background: High-flow nasal cannula (HFNC) enables delivery of humidified gas at high flow while controlling the F . Although its use is growing in patients with acute respiratory failure, little is known about the impact of HFNC on lung volume. Therefore, we aimed to assess lung volume changes in healthy subjects at different flows and positions.
View Article and Find Full Text PDFArticle Synopsis
- The study focuses on cuff pressure (CP) variations in tracheostomized patients who are not on mechanical ventilation, which is an area that has been under-researched.
- An experimental setup tested the performance of pressure gauges on different tracheostomy tubes, while a clinical setup measured CP variations over 6 days in 35 stable patients.
- Findings revealed significant differences in cuff pressures across tube brands and types, with a notable variability in measurements, indicating that more frequent monitoring of CP in these patients is necessary.