Retrospective Study
Copyright ©The Author(s) 2022.
World J Gastrointest Surg. Sep 27, 2022; 14(9): 930-939
Published online Sep 27, 2022. doi: 10.4240/wjgs.v14.i9.930
Table 1 Patients’ characteristics

Nonsplenectomy (n = 85)
Splenectomy (n = 35)
P value
Age (yr), median (range)57 (37-69)57 (37-69)0.667
Gender, n (%)0.107
Male67 (78.8)22 (62.9)
Female18 (21.2)13 (37.1)
BMI, median (range)24.2 (17.4-43.8)24.6 (18.4-43.3)0.707
Underlying liver disease, n (%)
HBV66 (77.6)14 (40.0)< 0.001a
HCV22 (25.9)23 (65.7)< 0.001a
Alcoholism13 (15.3)4 (11.4)0.775
Signs of portal hypertension, n (%)
Ascites43 (50.6)19 (54.3)0.841
Hepatic encephalopathy35 (41.2)13 (37.1)0.838
Varices bleeding19 (22.4)12 (34.3)0.251
Comorbidity, n (%)
Hypertension20 (23.5)9 (25.7)0.817
Diabetes mellitus 40 (47.1)11 (31.4)0.155
Preoperative serum tests, median (range)
White blood count (/uL)4600 (1480-11200)3500 (1350-12200)0.120
Platelet count (/uL)80000 (26000-279000)64000 (27000-155000)0.003a
Neutrophil–lymphocyte ratio2.44 (0.51-24.18)3.2 (0.91-21.33)0.273
Platelet–lymphocyte ratio78.49 (36.80-284.01)71.19 (28.53-188.08)0.386
Total bilirubin (mg/dL)1.4 (0-38.9)1.6 (0.4-57.1)0.984
Creatinine (mg/dL)0.9 (0.4-10.1)0.8 (0.5-1.3)0.578
Ammonia (ug/dL)99 (0-337)99 (30-560)0.737
Albumin (g/dL)3.2 (1.2-5.3)3.3 (2.2-5.1)0.922
Glucose (mg/dL)115 (0-457)118 (82-312)0.956
INR1.1 (0.9-2.7)1.2 (0.9-2.1)0.819
MELD scores11 (6-32)11 (6-30)0.494
AFP (ng/mL)7.0 (0.5-1190.0)14.0 (2.0-2170.0)0.012a
Surgical factors
Surgical type, n (%)0.276
DDLT26 (30.6)6 (17.1)
LDLT56 (65.9)28 (80)
SLT3 (3.5)1 (2.9)
Graft type, n (%)0.120
Whole graft27 (31.8)6 (17.1)
Partial graft58 (68.2)29 (82.9)
GRWR < 0.812 (14.1)6 (17.1)0.673
Blood loss (mL), median (range)1600 (200-14400)1350 (260-11000)0.519
Operative time (minutes), median (range)552 (360-1035)630 (420-870)0.001a
Pathology
Tumor size (cm)2.2 (0-6.5)2.5 (0-6.2)0.140
Tumor number, n (%)0.404
0 or 158 (68.2)21 (60.0)
2 or 327(31.8)14 (40.0)
Tumor necrosis, n (%)49 (58.3)20 (57.1)1.000
Lymphovascular invasion, n (%)6 (7.1)5 (14.3)0.297
Outcomes
Hospital stays, median (range) (d)21 (0-85)18 (5-116)0.810
HCC Recurrence, n (%)16 (18.8)15 (42.9)0.011a
Secondary cancer, n (%)5 (6.4)00.322
Mortality, n (%)9 (10.6)11 (31.4)0.013a
Table 2 Cox proportional hazard model for cancer-free survival
Univariate
Multivariate

Hazard ratio (95%CI)
P value
Hazard ratio (95%CI)
P value
Age 1.055 (1.001, 1.112)0.047a1.057 (1.001, 1.117)0.048a
Gender/male1.346 (0.614, 2.950)0.459-
BMI 0.937 (0.850, 1.033)0.191-
HBV2.070 (1.005, 4.263)0.048a1.371 (0.632, 2.978)0.425
HCV0.687 (0.332-1.423)0.313-
Alcoholism1.751 (0.532-5.769)0.357-
Diabetes mellitus1.062 (0.523, 2.157)0.868-
Hypertension1.704 (0.777, 3.736)0.183-
Tumor size1.057 (0.817, 1.368)0.672-
Tumor number (2/3 vs 0/1)1.577 (0.777, 3.199)0.207-
Lymphovascular invasion1.722 (0.600, 4.945)0.312-
Splenectomy2.754 (1.359, 5.581)0.005a2.560 (1.198, 5.471)0.015a
PLT1.000 (1.000, 1.000)0.579-
AFP1.001 (1.000, 1.002)0.070-
Table 3 Cox proportional hazard model for mortality
Univariate
Multivariate

Hazard ratio (95%CI)
P value
Hazard ratio (95%CI)
P value
Age 1.063 (0.994, 1.136)0.075-
Gender/male1.424 (0.540, 3.757)0.475-
BMI 0.942 (0.834, 1.063)0.333-
HBV4.386 (1.719, 11.193)0.002a4.077 (1.001, 16.615)0.050
HCV2.853 (1.145, 7.114)0.024a0.661 (0.166, 2.640)0.558
Alcoholism0.696 (0.161, 3.018)0.629-
Diabetes mellitus1.640 (0.679, 3.958)0.271-
Hypertension2.872 (1.142, 7.221)0.025a2.813 (1.111, 7.123)0.029a
Tumor size0.944 (0.679, 1.312)0.732-
Tumor number (2-3 vs 0-1)1.911 (0.795, 4.596)0.148-
Lymphovascular invasion2.054 (0.597, 7.062)0.254-
Splenectomy3.656 (1.510, 8.848)0.004a2.791 (1.081, 7.206)0.034a
PLT1.000 (1.000, 1.000)0.409-
AFP1.001 (1.000, 1.002)0.081-