View clinical trials related to Apneic Oxygenation.
Filter by:Apneic oxygenation describes the process of continuous oxygenation of the blood without breathing efforts. This anesthesia technique has been described in the literature for more than 100 years and is sometimes used under general anesthesia, e.g. during surgery of the vocal chords. Although this technique usually provides marked prolongation of the apneic period because of excellent oxygenation, it is limited by the absence of ventilation and the corresponding accumulation of carbon dioxide in the blood. This will lead to worsening respiratory acidosis and associated complications, such as cardiac arrythmias. In 2015 it was reported that apneic oxygenation with high-flow nasal oxygen delivery systems (HFNO), a device that provides heated humidified oxygen at high flow rates (usually 30-70 L/min), resulted in less carbon dioxide accumulation compared with historical controls. This specific technique of apneic oxygenation was termed transnasal humidified rapid-insufflation ventilation exchange (THRIVE). To date, the impact on different flow rates on blood carbon dioxide accumulation during THRIVE is unknown. Specifically, very high flow rates, exceeding 70 L/min have not been investigated. Therefore, the aim of this trial is therefore to study the rate of accumulation of carbon dioxide during THRIVE at two different flow rates: 40 and 100 L/min.
This RCT is testing the efficacy of apneic oxygenation during endotracheal intubation in the emergency department. Currently the standard practice in the ED when performing endotracheal intubation is that some providers use apneic oxygenation (the application of a nasal cannula at 15LPM) throughout the intubation procedure, while others do not apply apneic oxygenation. Initial literature in the operating room showed that apneic oxygenation helps prevent desaturation during the procedure. However, the latest literature conducted in critical care settings (one study in the ICU and one in the ED) questions the efficacy of this intervention in critically ill patients; however, no harm has been shown. Our study aims to test this intervention further by adding in a special subset of patients that was excluded from prior studies, precipitous intubations, or those patients that have to be intubated quickly and cannot have adequate pre-oxygenation. We hypothesize that apneic oxygenation will be more efficacious in this subset than in the overall ED population. We will randomize patients requiring endotracheal intubation into intervention (apneic oxygenation) and control (no apneic oxygenation). We will measure the lowest arterial oxygen saturation from the start of the intubation procedure through 2 minutes after intubation is complete.