Efficacy of percutaneous mechanical thrombus removal in acute lower extremity deep venous thrombosis

Table 4 Comparison of preoperative and postoperative test indexes in percutaneous mechanical thrombectomy group

Time	Argument	Hemoglobin (g/L)	Creatinine (μmmol/L)
Before operation	MV	137.32	57.45
	SD	15.94	13.69
1 day after surgery	MV	125.19a	57.52
	SD	14.11	13.66
7 days after surgery	MV	137.15c	57.43
	SD	14.72	13.65

^aP < 0.05, indicates 1 day postoperatively compared with preoperatively; ^cP < 0.05, indicates 7 days postoperatively compared with preoperatively; MV: Mean value; SD: Standard deviation.