Carbon dioxide elimination during high-frequency jet ventilation for rigid bronchoscopy

摘要: Oxygen saturation and carbon dioxide values should be monitored during high-frequency jet ventilation (HFJV). Modern transcutaneous PCO2 (PtcCO2) measurement allows the estimation of efficiency. We studied how tests lung function could predict elimination HFJV. Lung from 180 adult patients undergoing rigid bronchoscopy were analysed as factors affecting elimination. The test results showed a significant relationship with efficiency elimination; greatest impairment was found in combined abnormalities function. Further associated difficult male gender elevated body weight. Of investigated, 72% had normal elimination, whereas 23% hypercapnia avoided only by increasing driving pressure. prevalence abnormal preoperative predicts (sensitivity 76%, positive predictive value 27%) impaired bronchoscopy.