Retrospective Cohort Study
Copyright ©The Author(s) 2022.
World J Gastrointest Surg. May 27, 2022; 14(5): 409-418
Published online May 27, 2022. doi: 10.4240/wjgs.v14.i5.409
Table 1 Details of hepatectomy in previous liver resection
Previous liver resection
LRH, n = 29
ORH, n = 22
P value
Approach0.395
Laparoscopic14 (48.3)8 (36.4)
Open15 (51.7)14 (63.6)
Type of resection0.224
Major24 (82.8)15 (68.2)
Minor5 (17.2)7 (31.8)
Tumour location, segment0.780
II, III, IV, V, VI16 (55.2)13 (59.1)
VII, VIII13 (44.8)9 (40.9)
Number of previous hepatectomy0.478
117 (58.6)16 (72.7)
29 (31.0)5 (22.7)
32 (6.9)0 (0.0)
40 (0.0)1 (4.5)
51 (3.4)0 (0.0)
Microscopic lymphovascular invasion 1.000
No20 (69.0)15 (68.2)
Yes4 (13.8)4 (18.2)
Not assessed5 (17.2)3 (13.6)
Table 2 Patient and tumour characteristics
Characteristic
LRH, n = 29
ORH, n = 22
P value
Age64 (57.5-67.5)65.5 (59.75-69.25)0.607
Sex 0.688
Male25 (86.2)20 (90.9)
Female4 (13.8)2 (9.1)
Cirrhosis on histology19 (65.5)13 (59.1)0.638
HBsAg-positive27 (93.1)20 (90.9)1.000
Albumin in g/L39 (36-41)36 (34-40)0.109
Total bilirubin in µmol/L17 (13-20)13 (10-16)0.007
International normalized ratio1.1 (1.05-1.20)1.085 (1.055-1.148)0.587
Platelet count as × 109/L123 (99-173)161.5 (115.25-201.00)0.092
Alpha-fetoprotein in IU/mL11 (4.25-288.00)17 (4.0-174.5)0.814
Type of resection 0.055
Sub-segmentectomy19 (65.5)8 (36.4)
Segmentectomy5 (17.2)2 (9.1)
Left lateral sectionectomy2 (6.9)1 (4.5)
Right bisegmentectomy1 (3.4)4 (18.2)
Left hepatectomy +/− extended1 (3.4)1 (4.5)
Right hepatectomy +/− extended1 (3.4)5 (22.7)
Central bisectionectomy0 (0.0)1 (4.5)
Intraoperative ablation1 (3.4)2 (9.1)0.571
Tumour size in cm 0.054
< 12 (6.9)1 (4.5)
≥ 1-215 (51.7)7 (31.8)
≥ 2-35 (17.2)3 (13.6)
≥ 3-45 (17.2)2 (9.1)
≥ 4-51 (3.4)8 (36.4)
≥ 51 (3.4)1 (4.5)
Number of tumours0.295
Single25 (86.2)16 (72.7)
Multiple4 (13.8)6 (27.3)
Tumour location, segment 0.491
I2 (6.9)0 (0.0)
II, III, IV, V, VI14 (48.3)9 (40.9)
VII, VIII13 (44.8)13 (59.1)
Table 3 Operative outcomes
Outcome
LRH, n = 29
ORH, n = 22
P value
Operative time in min250 (177.5-320.5)300.5 (223.00-378.75)0.224
Pringle manoeuvre used2 (6.9)3 (13.6)0.641
Blood loss in mL300 (200-700)750 (300-1450)0.013
Blood transfusion6 (20.7)8 (36.4)0.214
Conversion6 (20.7)
Hospital stay in d5 (4-7)7 (5.75-11.50)0.003
Resection margin in mm7.25 (5.00-13.25)4.25 (1.00-8.25)0.073
Positive margin2 (7.1)2 (9.1)0.801
Complications3 (10.3)6 (27.3)0.150
Chest infection01
Pleural effusion13
Arrhythmia20
Bile leak02
Liver failure00
UTI01
Intra-abdominal infection11
Clavien-Dindo severity of complications
IIIa1 (1.1)5 (22.7)0.073
IIIb00
IV00
V0 (0.0)1 (4.5)0.431