Atelectasis by Lung Ultrasonography in Cesarean Sections

Preoperative lung ultrasound will be performed on all patients and baseline values will be recorded. The sensory block level under T10 of the patients who underwent spinal anesthesia in the postoperative period lung ultrasonography will be done after regression. In the postoperative period, lung ultrasonography will be performed in patients undergoing spinal anesthesia when the sensory block level is below T10. In the general anesthesia group, when the neuromuscular block is completely reversed and the Aldrete score is\> 9, lung ultrasonography will be performed. The degree of atelectasis will be determined according to the modified LUS score.