PEEP Titration and Lung Recruitment Potential Assessed by 3D EIT

"Patients were ventilated based on the ARDS-Net suggestions. The patients were kept at supine position. The lung recruitment potential assessed by 3D EIT was as follows:~1. All patients were under pressure control mode (driving pressure 12-15 cmH2O with a tidal volume of 6-8 ml/kg predicted body weight, respiration rate12-15 bpm).~2. PEEP was switched to a zero end-expiratory pressure (ZEEP) for 10 min, and FiO2 was titrated to obtain peripheral oxygen saturation (SpO2 ) \> 90%.~3. PEEP was stepwise increase from 0 to 15 cmH2O PEEP in steps of 5cm H2O every 3min.And 3D EIT was used to assess lung recruitment potential."

"Patients were ventilated based on the ARDS-Net suggestions. The patients were kept at supine position. The PEEP titriatino by 3D EIT fwas as follows:~1. All patients were under pressure control mode (driving pressure 12-15 cmH2O with a tidal volume of 6-8 ml/kg predicted body weight, respiration rate12-15 bpm).~2. RM: PEEP was switched to a 21cmH2O for 2min, and FiO2 was titrated to obtain peripheral oxygen saturation (SpO2 ) ≥90%.~3. PEEP was stepwise decrease from 21 to 0 cmH2O PEEP in steps of 3cm H2O every 2min.~4. 3D EIT was used to monitor regional ventilation distribution during PEEP titration."