Patient characteristics
blood loss, intraoperative bleeding
BLOOD LOSS, INTRAOPERATIVE BLEEDING
Among the 42 patients, 2 were excluded: One patient in group S withdrew from the study due to massive intraoperative bleeding (blood loss > 800 ml), and one patient in group T withdrew from the study due to the loss of follow-up involving refusal to collect blood samples after surgery. Finally, all the data of 40 subjects were analyzed, with 20 patients in each group (Fig. 
Flow chartThe sex [female, 15 (37.5%)], age (56.85 ± 7.73), BMI (22.97 ± 3.56) and ASA grade [ASAII, 40 (20%)] between the 2 groups were similar (
Comparison of general data and intraoperative variables between the two groupsData presented as mean ± SD or M and IQR or number of patients. SD- standard deviation; M- median; IQR- interquartile range; BMI- body mass index; ASA- American Society of Anaesthesiologists