Results:
Preoperative and postoperative kidney and liver function values ​​of the patients in both groups were within the reference range. In both groups, while there was a significant decrease in the IJV diameter and flow measurement values ​​at t2 compared to t1, and a significant increase was observed at t3 compared to t2 (p<0.05). The mean IJV diameter and flow were significantly higher in the 10 mmHg pressure group compared to the 13 mmHg group (p<0.05).