Analysis of risk factors for post-operative infection following drug-eluting trans arterial chemo embolization in hepatocellular carcinoma: A retrospective study

Table 5 Procedure-related parameters

Characteristic	Infection group (n = 20)	Non-infection group (n = 57)	P value
Mean operation time (minutes)	142.5 ± 32.6	98.3 ± 25.7	< 0.05
Operation time ≥ 120 minutes (%)	70% (14/20)	38.6% (22/57)	< 0.05
Volume of drug-eluting beads (mL)	10.2 ± 2.1	9.8 ± 1.9	> 0.05
Mean blood loss (mL)	350.2 ± 120.5	250.1 ± 100.3	< 0.05
Blood transfusion required (%)	40% (8/20)	24.6% (14/57)	< 0.05
Postoperative hospital stay (days)	7.5 ± 2.3	5.8 ± 1.9	< 0.05
Intraoperative complications (%)	30% (6/20)	17.5% (10/57)	> 0.05
Postoperative complications (%)	50% (10/20)	31.6% (18/57)	< 0.05
Mean number of lymph nodes removed	12.5 ± 3.2	10.1 ± 2.8	< 0.05
Positive lymph node ratio (%)	45% (9/20)	28.1% (16/57)	< 0.05
Mean tumor margin width (mm)	5.2 ± 1.5	6.8 ± 1.2	< 0.05
Invasive tumor (%)	60% (12/20)	40.4% (23/57)	< 0.05