Atelectasis Frequency in Different Ventilation Modes

"Patients to be ventilated with VCV mode were placed on respiratory support (Dräger Primus) with a breathing rate that would provide 8 ml/kg tidal volume, 5 cmH2O PEEP, and 30-35 mmHg end-tidal carbon dioxide concentration (etCO2) level.~Lung ultrasonography was performed at 4 different time periods (before laryngeal mask airway (LMA), at the 10th minute after LMA, before extubation and at the 10th minute after extubation). Modified lung ultrasonography scores of 12 quadrants were recorded."

"Appropriate peak inspiratory pressure was set to create a tidal volume of 8 ml/kg in patients who would be ventilated with PCV mode. The number of breaths (Dräger Primus) was adjusted to provide an end-tidal carbon dioxide concentration (etCO2) level of 30-35 mmHg. PEEP was set to 5 cmH2O.~Lung ultrasonography was performed at 4 different time periods (before laryngeal mask airway (LMA), at the 10th minute after LMA, before extubation and at the 10th minute after extubation). Modified lung ultrasonography scores of 12 quadrants were recorded."