HFNO Flow Rates and Cerebral Oxygenation During Deep Sedation for Cystoscopy

For Patients and FamiliesThis study aims to investigate how high‐flow oxygen therapy affects oxygen levels,especially brain oxygenation, during cystoscopy procedures performed under sedation. Thegoal is to improve patient safety and comfort by ensuring better oxygen delivery duringthe procedure. Different oxygen flow rates will be compared, while patients' breathing,oxygen levels, and vital signs are continuously monitored throughout the procedure. Allmethods used in the study are consistent with routine anesthesia practices, and patientsafety remains the highest priority.For Healthcare ProfessionalsThis prospective randomized controlled study evaluates the effects of different high‐flownasal oxygen (HFNO) flow rates on cerebral oxygenation, peripheral oxygenation, andventilation parameters in patients undergoing cystoscopy under procedural sedation. Theprimary aim is to determine the contribution of HFNO to sedation safety and to provideclinical evidence regarding the optimal flow rate. In addition, hypoxemia incidence,airway intervention requirements, hemodynamic variables, and sedation depth are beinganalyzed.