Comparison of transcutaneous and endtidal CO₂‐monitoring for rigid bronchoscopy during high‐frequency jet ventilation

To compare endtidal and transcutaneous respiratory monitoring of high-frequency jet ventilation (HFJV) in rigid bronchoscopy. Both techniques provide a noninvasive measurement of pCO2.High-frequency jet ventilation was applied via a rigid bronchoscope. Driving pressure (DP) was initially adapted to ensure normal ventilation. It was then changed twice by +/- 30% from the initial value. Endtidal and transcutaneous data were compared with arterial...