Postoperative Complications Following Skull Base Tumor Resection

All ultrasound scans were performed by the same anaesthetists. Pulmonary ultrasound examination was performed at two time points for each patient: 20 min before starting mechanical ventilation of the lungs when patients were placed in the supine position(preoperative), 20 min after after surgery end at the time the patient was placed in the supine position (postoperative), before Intubation and after extubation Patientswere scanned in the supine position following the pulmonary ultrasound examination method The thorax was divided by the anterior axillary line, the posterior axillary line, and a horizontal line beneath nipple. Twelve intercostal spaces of each area were scanned and analysed. Aeration loss was assessedby calculating the modified LUS score that is calculated mainly using the amount of B-line The pulmonary ultrasound score of the hemithorax (0-18).