Incidence, risk factors and outcomes for post-hepatectomy portal vein thrombosis: A retrospective study

Table 1 Clinical characteristics of the study population, n (%)

Characteristics	Overall (n = 1064)
Age
< 60	558 (52.4)
≥ 60	506 (47.6)
Gender
Male	660 (62)
Female	404 (38)
BMI, median (IQR)	23.24 (21.22, 25.38)
Diseases
Biliary tract cancer	362 (34)
Hepatocellular carcinoma	338 (31.8)
Benign disease	301 (28.3)
Other malignant disease	63 (5.9)
Liver cirrhosis
Yes	381 (35.8)
No	683 (64.2)
Major hepatectomy
Yes	594 (55.8)
No	470 (44.2)
Caudate lobectomy
Yes	266 (25)
No	798 (75)
Pancreaticoduodenectomy
Yes	11 (1)
No	1053 (99)
Portal vein reconstruction
Yes	90 (8.5)
No	974 (91.5)
Hepatic vein reconstruction
Yes	9 (0.8)
No	1055 (99.2)
Bile duct resection
Yes	390 (36.7)
No	674 (63.3)
Operation time (minute), median (IQR)	476 (328.75, 648)
Blood loss (mL), median (IQR)	300 (100, 500)
Blood transfusion
Yes	516 (48.5)
No	548 (51.5)
Postoperative portal vein angle
≥ 100	403 (68.1)
< 100	189 (31.9)
Main portal vein diameter (mm), median (IQR)	11 (9, 12)
Pringle maneuver time (minute), median (IQR)	56.18 (34.19, 84.27)
Preoperative laboratory test
Platelet count (9 × 104/μL), median (IQR)	195 (145, 260)
PTINR, median (IQR)	1.03 (0.97, 1.09)
FDP (μg/mL), median (IQR)	2.50 (2.50, 2.63)
D-dimer (μg/mL), median (IQR)	0.38 (0.15, 0.88)
Postoperative laboratory test
Platelet count (9 × 104/μL), median (IQR)	157 (110, 209.25)
PTINR, median (IQR)	1.16 (1.08, 1.26)
FDP (μg/mL), median (IQR)	22.46 (13.35, 34.03)
D-dimer (μg/mL), median (IQR)	8.20 (5.72, 13.08)

PTINR: Prothrombin time-international normalized ratio; FDP: Fibrinogen degradation product; BMI: Body mass index; IQR: Interquartile range.