Observational Study
Copyright ©The Author(s) 2022.
World J Gastrointest Surg. Sep 27, 2022; 14(9): 1008-1025
Published online Sep 27, 2022. doi: 10.4240/wjgs.v14.i9.1008
Table 1 Propensity score matching results of associating liver partition and portal vein ligation for staged hepatectomy group and right hemi-hepatectomy group
VariableBefore matching
After matching
ALPPS (15 cases)
Hepatectomy (46 cases)
P valve
ALPPS (15 cases)
Hepatectomy (15 cases)
P valve
Age (yr)45.1 ± 11.449.4 ± 9.60.15745.1 ± 11.449.5 ± 9.90.276
Sex (%)0.7950.543
Female2 (13.3%)5 (10.9%)2 (13.3%)1 (6.7%)
Male13 (86.7%)41 (89.1%)13 (86.7%)14 (93.3%)
BMI22.4 ± 3.222.8 ± 3.10.64422.4 ± 3.223.0 ± 3.40.608
HCC end-stage score5.8 ± 2.35.4 ± 2.60.6265.8 ± 2.36.1 ± 3.70.815
BCLC stage0.7750.915
A3 (20.0%)13 (28.3%)3 (20.0%)3 (20.0%)
B5 (33.3%)12 (26.0%)5 (33.3%)4 (26.7%)
C7 (46.7%)21 (45.7%)7 (46.7%)8 (53.3%)
AFP (%)0.0311.000
≥ 400 ng/mL11 (73.3%)19 (41.3%)11 (73.3%)11 (73.3%)
< 400ng/mL4 (26.7%)27 (58.7%)4 (26.7%)4 (26.7%)
Child-Pugh class (%)0.9841.000
A14 (93.3%)43 (93.5%)14 (93.3%)14 (93.3%)
B1 (6.7%)3 (6.5%)1 (6.7%)1 (6.7%)
Tumor number (%)0.1251.000
110 (66.7%)39 (84.8%)10 (66.7%)10 (66.67%)
> 15 (33.3%)7 (15.2%)5 (33.3%)5 (33.33%)
Tumor size (cm)10.7 ± 4.57.7 ± 4.80.03310.7 ± 4.59.0 ± 4.90.332
Vascular invasion (%)0.9520.705
Yes6 (40.0%)18 (39.1%)6 (40.0%)5 (33.3%)
No9 (60.0%)28 (60.9%)9 (60.0%)10 (66.6%)
Extrahepatic metastasis (%)1.0001.000
Yes0 (0%)1 (2.2%)0 (0%)0 (0%)
No15 (100%)45 (97.8%)15 (100%)15 (100%)
Table 2 Intraoperative and postoperative conditions of patients in associating liver partition and portal vein ligation for staged hepatectomy group and right hemi-hepatectomy group

ALPPS
Hepatectomy
Stage-I ALPPS
Stage-II ALPPS
Surgery time (min)342 (229-459)293 (167-400)338 (140-515)
Intraoperative blood loss (mL)230 (100-500)619 (200-1800)344 (190-638)
Postoperative bile leakage (yes/no)0/150/152/13
Postoperative complications, Clavien-Dino (I/II/III/IV)13/1/1/08/4/2/19/4/1/1
Classification of postoperative liver failure, ISGLS (A/B/C)4/10/14/9/26/8/1
90 d survival after operation (death/alive)0/151/141/14
Table 3 Comparison of positive expression rates of tumor-infiltrating lymphocyte subpopulations in tumor tissues in stage-I associating liver partition and portal vein ligation for staged hepatectomy, stage-II associating liver partition and portal vein ligation for staged hepatectomy, and right hemi-hepatectomy groups
ALPPS
HepatectomyVariance analysis
Stage-I ALPPS
Stage-II ALPPS
F valve
P valve
Total T cells (%)3.3 ± 2.93.1 ± 2.02.8 ± 1.80.1880.829
CD4+ T cells (%)1.0 ± 0.91.2 ± 1.10.9 ± 0.50.4580.635
CD8+ T cells (%)0.8 ± 0.71.0 ± 0.90.6 ± 0.40.5460.583
Treg cells (‰)0.2 ± 0.10.2 ± 0.20.3 ± 0.10.1660.848
B cells (%)1.7 ± 1.31.3 ± 0.72.1 ± 0.80.7260.490
NK cells (%)0.7 ± 0.20.4 ± 0.20.7 ± 0.20.6640.520
Table 4 Comparison of positive expression rates of tumor-infiltrating lymphocyte subpopulations in adjacent tissues in stage-I associating liver partition and portal vein ligation for staged hepatectomy, stage-II associating liver partition and portal vein ligation for staged hepatectomy, and right hemi-hepatectomy groups
ALPPS

Variance analysis
Stage-I ALPPS
Stage-II ALPPS
Hepatectomy
F valve
P valve
Total T cells (%)2.0 ± 0.61.9 ± 0.91.8 ± 1.30.1290.879
CD4+ T cells (%)0.8 ± 0.30.9 ± 0.30.9 ± 0.70.2580.774
CD8+ T cells (%)0.8 ± 0.31.0 ± 0.51.0 ± 0.70.5100.604
Treg cells (‰)0.0 ± 0.10.0 ± 0.00.0 ± 0.00.2920.748
B cells (%)2.0 ± 1.21.8 ± 0.81.7 ± 0.50.2690.765
NK cells (%)0.7 ± 0.70.6 ± 0.50.8 ± 0.70.5500.581
Table 5 Comparison of tumor-infiltrating lymphocyte subpopulations between tumor and adjacent tissues in associating liver partition and portal vein ligation for staged hepatectomy group
Stage-I ALPPS
Stage-II ALPPS
Tumor
Adjacent
P valve
Tumor
Adjacent
P valve
Total T cells (%)3.3 ± 2.92.0 ± 0.60.1163.1 ± 2.01.9 ± 0.90.056
CD4+ T cells (%)1.0 ± 0.90.8 ± 0.30.4031.2 ± 1.10.9 ± 0.30.278
CD8+ T cells (%)0.8 ± 0.70.8 ± 0.30.9021.0 ± 0.91.0 ± 0.50.792
Treg cells (‰)0.2 ± 0.10.0 ± 0.10.0560.2 ± 0.20.0 ± 0.00.156
B cells (%)1.7 ± 1.32.0 ± 1.20.5151.3 ± 0.71.8 ± 0.80.085
NK cells (%)0.7 ± 0.20.7 ± 0.70.9850.4 ± 0.20.6 ± 0.50.403
Table 6 Comparison of tumor-infiltrating lymphocyte subpopulations between tumor and adjacent tissues in right hemi-hepatectomy group
Right hemi-hepatectomy
Tumor tissues
Adjacent tissues
P valve
Total T cells (%)2.8 ± 1.81.8 ± 1.30.105
CD4+ T cells (%)0.9 ± 0.50.9 ± 0.70.840
CD8+ T cells (%)0.6 ± 0.41.0 ± 0.70.101
Treg cells (‰)0.3 ± 0.10.0 ± 0.00.043
B cells (%)2.1 ± 0.81.7 ± 0.50.645
NK cells (%)0.7 ± 0.20.8 ± 0.70.678
Table 7 Comparison of immunological data during stage-I associating liver partition and portal vein ligation for staged hepatectomy
Item
Preoperative
Stage-I ALPPS
F value
P value
POD1
POD3
POD5
POD7
T lymphocyte count (cells/μL)1331.5 ± 600.0472.8 ± 289.9682.0 ± 346.9837.9 ± 383.61012.5 ± 444.210.0950.001
Total T lymphocyte percentage (%)67.8 ± 8.759.6 ± 8.568.4 ± 12.370.5 ± 11.768.9 ± 10.36.7170.000
CD4+ T lymphocytes (cells/μL)806.3 ± 428.2241.1 ± 202.2412.3 ± 224.7520.1 ± 255.1608.0 ± 266.19.0490.002
CD8+ T lymphocyte (cells/μL)438.2 ± 194.2187.6 ± 96.6238.9 ± 141.0277.4 ± 143.5361.2 ± 201.611.2940.001
Natural killer cells (%)16.5 ± 7.827.2 ± 8.610.8 ± 6.911.0 ± 3.711.2 ± 3.717.3410.000
IgA (g/L)3.11 ± 1.282.63 ± 1.641.87 ± 0.772.08 ± 0.792.69 ± 1.2410.0250.001
IgG (g/L)15.11 ± 3.7010.52 ± 2.898.70 ± 2.728.89 ± 2.699.82 ± 2.7062.3600.000
IgM (g/L)1.27 ± 0.680.89 ± 0.400.71 ± 0.390.82 ± 0.381.08 ± 0.536.1140.008
Complement C1q (mg/L)194.5 ± 28.7168.9 ± 44.2140.4 ± 39.6157.7 ± 45.9159.17 ± 55.36.7260.000
Complement C3 (g/L)1.18 ± 0.190.87 ± 0.150.79 ± 0.190.87 ± 0.210.91 ± 0.2644.8080.000
Complement C4 (g/L)0.40 ± 0.180.26 ± 0.120.23 ± 0.110.25 ± 0.120.28 ± 0.158.7310.002
Interleukin-6 (g/L)10.7 ± 17.0177.4 ± 121.684.0 ± 62.352.6 ± 40.941.2 ± 35.17.8770.003
CD19 expression rate (%)10.5 ± 4.09.6 ± 5.6212.1 ± 5.612.7 ± 5.213.3 ± 6.11.8660.129
Table 8 Comparison of immunological data during stage-II associating liver partition and portal vein ligation for staged hepatectomy
Item
Preoperative
Stage-II ALPPS
F value
P value
POD1
POD3
POD5
POD7
T lymphocyte count (cells/μL)1414.4 ± 634.0455.9 ± 255.4716.3 ± 311.3796.3 ± 282.8913.4 ± 387.117.6260.000
Total T lymphocyte percentage (%)67.8 ± 8.763.7 ± 9.272.3 ± 7.574.8 ± 6.473.6 ± 7.28.2880.000
CD4+ T lymphocytes (cells/μL)806.3 ± 428.2246.4 ± 168.2375.9 ± 170.1493.9 ± 196.7537.9 ± 231.37.9250.003
CD8+ T lymphocytes (cells/μL)438.2 ± 194.2168.5 ± 89.4290.3 ± 184.7291.9 ± 159.0356.1 ± 210.88.7750.000
Natural killer cells (%)16.5 ± 7.823.0 ± 7.112.7 ± 4.68.7 ± 4.810.2 ± 3.215.6150.000
IgA (g/L)3.11 ± 1.282.37 ± 1.882.31 ± 1.412.59 ± 1.303.40 ± 1.668.9000.002
IgG (g/L)15.11 ± 3.708.71 ± 2.108.11 ± 1.908.53 ± 1.669.68 ± 2.2612.6040.000
IgM (g/L)1.27 ± 0.680.70 ± 0.370.67 ± 0.280.70 ± 0.360.83 ± 0.371.2770.001
Complement C1q (mg/L)194.5 ± 28.7140.8 ± 33.8111.1 ± 39.1118.5 ± 41.3124.2 ± 42.114.4220.000
Complement C3 (g/L)1.18 ± 0.190.72 ± 0.270.54 ± 0.200.58 ± 0.200.62 ± 0.1824.3450.000
Complement C4 (g/L)0.40 ± 0.180.22 ± 0.160.15 ± 0.120.15 ± 0.140.17 ± 0.1615.3050.000
Interleukin-6 (pg/mL)10.7 ± 17.0210.3 ± 160.962.6 ± 27.637.1 ± 19.741.6 ± 61.312.2060.000
CD19 expression rate (%)10.5 ± 4.09.4 ± 5.110.2 ± 4.111.2 ± 5.811.0 ± 5.60.5220.720
Table 9 Comparison of immunological data during conventional hepatectomy
Item
Preoperative
Conventional hepatectomy
F value
P value
POD1
POD3
POD5
POD7
T lymphocyte count (cells/μL)1194.7 ± 305.4447.1 ± 240.9808.8 ± 313.7835.7 ± 323.71032.7 ± 323.6123.3420.000
Total T lymphocyte percentage (%)71.2 ± 5.258.9 ± 14.565.9 ± 11.772.3 ± 9.172.8 ± 7.717.6760.000
CD4+ T lymphocytes (cells/μL)761.1 ± 146.6244.1 ± 113.9515.9 ± 155.1520.7 ± 168.7644.8 ± 149.1198.6750.000
CD8+T lymphocytes (cells/μL)379.9 ± 119.0147.9 ± 98.5226.8 ± 104.5253.0 ± 110.4331.8 ± 120.9106.2190.000
Natural killer cells (%)17.9 ± 4.725.8 ± 8.414.1 ± 3.012.9 ± 4.613.8 ± 3.812.8930.000
IgA (g/L)2.67 ± 1.492.23 ± 1.342.11 ± 1.322.44 ± 1.502.82 ± 1.6019.1170.000
IgG (g/L)11.78 ± 5.588.14 ± 3.977.89 ± 3.988.09 ± 4.058.55 ± 3.9535.2490.000
IgM (g/L)0.91 ± 0.390.54 ± 0.310.63 ± 0.260.66 ± 0.270.82 ± 0.3024.0510.000
Complement C1q (mg/L)174.6 ± 51.3142.8 ± 49.9121.9 ± 46.9125.1 ± 52.1132.2 ± 47.039.7500.000
Complement C3 (g/L)1.11 ± 0.450.84 ± 0.410.74 ± 0.370.70 ± 0.360.73 ± 0.3731.5170.000
Complement C4 (g/L)0.32 ± 0.130.24 ± 0.110.21 ± 0.110.22 ± 0.110.24 ± 0.1237.0710.000
Interleukin-6 (pg/mL)16.3 ± 17.7171.6 ± 119.273.3 ± 46.343.5 ± 28.844.1 ± 31.18.9810.002
CD19 expression rate (%)13.04 ± 2.219.93 ± 3.0510.68 ± 3.4012.81 ± 4.3714.03 ± 3.6211.1150.000