Observational Study
Copyright ©The Author(s) 2024.
World J Gastroenterol. Apr 14, 2024; 30(14): 2006-2017
Published online Apr 14, 2024. doi: 10.3748/wjg.v30.i14.2006
Table 1 Demographics, n (%)

RH/Tri group (n = 41)
LH group (n = 53)
Seg group (n = 99)
Sub/Non group (n = 75)
P value
Baseline characteristics
        Age68 (16-80)69 (14-86)68 (46-83)70 (52-90)0.06
        Sex, male, yes29 (71)33 (62)73 (74)58 (77)0.29
        BMI (kg/m2)21.8 (15.4-31.3)22.3 (15.2-29.4)230 (15.5-32.8)23.4 (17.8-35.5)0.009
Background disease
        HCC21 (51)14 (26)63 (64)56 (75)< 0.001
        CCC & CHC4 (10)19 (36)9 (9)8 (11)-
        Colorectal liver metastasis10 (24)6 (11)16 (16)11 (15)-
        Others6 (15)14 (26)11 (11)0 (0)-
        HCV, yes6 (15)9 (17)26 (26)29 (39)0.01
        Liver resection percentage52 (21-71)32 (13-49)27 (10-56)15 (10-32)< 0.001
        Diabetes mellitus, yes13 (32)16 (30)34 (34)33 (44)0.36
        Renal complication3 (7)3 (6)6 (6)6 (8)0.94
        Heavy alcoholic115 (37)9 (17)39 (39)32 ()0.03
        ICG 15 min10.7 (0.1-81.1)9.0 (1.4-66.4)10.1 (1.3-80.0)11.5 (2.8-33.4)0.65
        Preoperative ALBI score-2.56 (-3.46 to -1.40)-2.73 (-3.50 to -0.69)-2.85 (-3.75 to -1.51)-2.78 (-3.38 to -1.82)0.07
        Preoperative platelet count (/uL)205 (95-562)198 (78-504)186 (61-542)182 (91-396)0.02
        Liver cirrhosis (F4), yes4 (10)2 (4)18 (18)9 (12)0.08
        Laparoscopic hepatectomy3 (7)2 (38)13 (13)7 (9)0.28
        Re-hepatectomy3 (7)4 (8)5 (5)7 (9)0.74
        Preoperative Chemotherapy10 (24)9 (17)15 (15)5 (7)0.06
Postoperative outcomes
        Operation time (min)383 (218-644)354 (183-629)388 (151-742)341 (153-584)0.008
        Intraoperative blood loss (mL)680 (110-13360)378 (68-3660)525 (0-32150)470 (0-1894)0.25
        RBC transfusion6 (15)3 (6)8 (8)3 (4)0.19
        Total Pringle time (min)56 (0-179)45 (0-131)75 (0-202)78 (0-167)< 0.001
        Posthepatectomy liver failure grade B/C10 (24)3 (6)7 (7)3 (4)0.001
        Complication CD grade ≥ 39 (22)10 (19)22 (22)12 (16)0.75
        Length of Hospital stay (d)16 (7-41)11 (5-54)11 (6-40)11 (6-167)0.46
Table 2 Risk factors for low regeneration at 3-months and 12-months posthepatectomy

3-months (n = 187)
12-months (n = 192)
Univariate OR (95%CI)
P value
Multivariate OR (95%CI)
P value
Univariate OR (95%CI)
P value
Multivariate OR (95%CI)
P value
Age > 75, yes0.69 (0.30-1.56)0.37--0.48 (0.19-1.24)0.13--
Sex, male, yes1.40 (0.66-32.94)0.38--0.79 (0.39-1.62)0.79--
BMI >28 kg/m2, yes0.19 (0.02-1.44)0.11--0.42 (0.09-1.94)0.42--
Background, HCC-Ref.-Ref.
CCC & CHC0.30 (0.09-1.08)0.070.31 (0.08-1.17)0.080.81 (0.31-2.07)0.65--
Colorectal liver metastasis0.98 (0.41-2.38)0.960.88 (0.35-2.21)0.790.88 (0.34-2.27)0.79--
Others0.76 (0.31-2.37)0.760.93 (0.30-2.88)0.900.97 (0.35-2.71)0.96--
HCV positive, yes0.63 (0.29-1.38)0.25--1.18 (0.58-2.39)0.65
Diabetes mellitus, yes0.93 (0.47-1.83)0.84--0.77 (0.39-1.52)0.45--
Renal complication, yes2.50 (0.73-8.60)0.15--0.51 (0.11-2.37)0.39--
Heavy alcoholic, yes1.10 (0.56-2.18)0.77--0.86 (0.44-1.69)0.66--
Preoperative platelet count < 100 × 103/L, yes2.19 (0.47-10.13)0.325.30 (1.22-23.09)0.035.01 (1.14-21.95)0.03
Preoperative ALBI score (per 1.0 up)2.85 (1.21-6.71)0.022.80 (1.17-6.69)0.022.33 (1.05-5.18)0.042.27 (1.01-5.09)0.04
ICG 15 minutes rate (per 1.0 up)0.97 (0.93-1.01)0.15--1.00 (0.97-1.04)0.92--
Liver cirrhosis (F4), yes1.22 (0.47-23.14)0.69--1.42 (0.51-3.97)0.51--
Preoperative chemotherapy, yes0.66 (0.25-1.73)0.40--0.84 (0.32-2.24)0.73--
Re-hepatectomy, yes2.65 (0.84-8.33)0.092.81 (0.84-9.47)0.090.28 (0.04-2.25)0.23--
Liver resection percentage (per 1.0% up)1.01 (0.99-1.04)0.22--1.01 (0.99-1.04)0.24--
Intraoperative blood loss > 1000mL, yes1.73 (0.83-3.62)0.14--1.04 (0.47-2.34)0.92--
RBC transfusion, yes0.75 (0.20-2.82)0.67--0.81 (0.22-3.02)0.75--
Pringle time > 90 min, yes1.07 (0.49-2.34)0.86--1.09 (0.51-2.31)0.83--
Posthepatectomy liver failure grade B/C, yes0.58 (0.16-2.10)0.41--0.72 (0.21-2.93)0.72--
Postoperative complication CD grade ≥ 3, yes0.31 (0.11-0.84)0.020.29 (0.10-0.82)0.021.79 (0.83-3.87)0.14--
Table 3 Risk factors for delayed regeneration and failure for restoration of the original volume

Delayed regeneration (total n = 153)
Volume restoration failure (total n = 191)
Univariate OR (95%CI)
P value
Multivariate OR (95%CI)
P value
Univariate OR (95%CI)
P value
Multivariate OR (95%CI)
P value
Age > 75, yes0.67 (0.27-1.68)0.45--0.94 (0.46-1.94)0.88--
Gender, male, yes1.14 (0.48-2.67)0.77--0.76 (0.40-1.45)0.41--
BMI > 28 kg/m2, yes0.22 (0.03-1.74)0.15--0.44 (0.14-1.46)0.18--
Background, HCC-Ref.-Ref.
CCC & CHC0.49 (0.13-1.82)0.29--1.64 (0.73-3.65)0.230.40 (0.15-1.11)0.08
Colorectal liver metastasis1.83 (0.73-4.56)0.19--0.88 (0.34-1.90)0.810.71 (0.22-2.26)0.56
Others1.10 (0.27-4.42)0.90--2.39 (0.95-6.00)0.070.28 (0.08-0.97)0.44
HCV positive, yes0.61 (0.26-1.47)0.27--0.70 (0.37-1.34)0.28--
Diabetes mellitus, yes0.64 (0.30-1.39)0.26--0.55 (0.30-1.00)0.050.69 (0.36-1.35)0.28
Renal complication, yes0.89 (0.18-4.48)0.88--1.15 (0.37-3.56)0.81--
Heavy alcoholic, yes0.86 (0.39-1.88)0.71--0.84 (0.46-1.53)0.56--
Preoperative platelet count < 100 × 103/uL, yes1.60 (0.28-9.11)0.60--4.17 (0.82-21.21)0.094.34 (0.81-23.40)0.09
Preoperative ALBI score (per 1.0 up)1.13 (0.46-2.81)0.79--2.76 (1.27-5.97)0.012.63 (1.15-6.04)0.02
ICG 15 min rate (per 1.0 up)1.00 (0.97-1.04)0.99--1.00 (0.98-1.04)0.58--
Liver cirrhosis (F4), yes1.94 (0.70-5.38)0.20--1.22 (0.47-3.15)0.69--
Preoperative chemotherapy, yes2.01 (0.80-5.03)0.14--0.80 (0.34-1.87)0.60--
Re-hepatectomy, yes1.67 (0.40-7.03)0.49--0.74 (0.21-2.62)0.64--
Liver resection percentage (per 1.0% up)1.03 (1.00-1.05)0.041.03 (1.00-1.05)0.041.03 (1.01-1.05)0.0081.02 (1.00-1.05)0.04
Intraoperative blood loss > 1000 mL, yes1.35 (0.58-3.15)0.49--1.41 (0.69-2.86)0.34--
RBC transfusion, yes0.55 (0.12-2.58)0.58--1.04 (0.35-3.12)0.95--
Pringle time > 90 min, yes1.82 (0.80-4.14)0.16--0.91 (0.46-1.81)0.78--
Posthepatectomy liver failure grade B/C, yes0.95 (0.24-3.60)0.92--1.83 (0.61-5.50)0.28--
Postoperative complication CD grade ≥ 3, yes0.54 (0.19-1.53)0.24--1.97 (0.95-4.07)0.071.80 (0.83-3.91)0.14