Anesthesia is crucial during upper GI endoscopy in order to improve the procedural conditions for the interventionist, increase the quality of examination and alleviate patient discomfort. However, sedation during endoscopy carries a serious risk of blood oxygen desaturation. This study aims to investigate the hypothesis if the application of high-flow nasal oxygen (HFNO) during high-risk gastroscopy reduces the risk of blood oxygen levels to drop below a defined threshold. Enrolled patients will be randomly assigned to either the control group, receiving standard care during endoscopy, or the intervention group, receiving HFNO therapy during the procedure. Throughout the intervention, vital parameters will be recorded. Care providers will be asked to answer a questionnaire that specifically evaluates the effect of HFNO on patient safety and the procedure.
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Additional actions had to be taken to ensure sufficient SpO2 oxygenation.
Timeframe: The primary outcome will be assessed in the time between start of induction of anesthesia and awakening until discharge from the procedural room, which is typically between 30 and 120 minutes