Comparison of D-dimer and APTT AMONG the five groups
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SECONDARY
D-dimer significantly increased on a postoperative day 1 compared with that on preoperative 1 day, and it significantly decreased on postoperative day 3 among all five groups (
Radar chart of secondary outcomes in the five groups. 
Comparison of D-dimer levels and APTT between the five groups before and after surgeryAPTT: active partial thromboplastin timeP