Table 1 Characteristics of the 20 Included Studies.

From: Mesohepatectomy Versus Extended Hemihepatectomies for Centrally Located Liver Tumors: A Meta-Analysis

Ref. Year

Region/Center Description

Type of Operation

n

Sex Man %

Mean/Median

Age Range

The Proportion of MH to Liver Resections (%)

Study Design

Duration of Follow-up (Median/Mean) (Range) (mon)

Zuo3

Asia (Mainland China), one center

MH

24

79.17

53.0

27–74

NA

Retrospective

NA

Mehrabi14

Europe (Germany), one center

MH

48

60.42

60.7

35–78

5.8 (48/830)

Retrospective

38, 2–72

Chouillard20

Europe (France), one center

MH

16

NA

NA

NA

3.7 (16/435)

Retrospective

NA

Lee19

Asia (Korea), one center

MH

27

81.48

55.0

28–67

6.2 (27/436)

Retrospective

19.1, 1.4–102.2

Giuliante16

Europe (Italy), one center

MH

18

55.56

64.0

53–78

2.5% (18/725)

Retrospective

2–78

   

58

 

41.5

21–75

   

Chen12

Asia (Mainland China), one center

MH

 

88.14

  

5.0 (118/2372)

Retrospective

NA

   

60

 

39.7

18–67

   

Arkadopoulos17

Europe (Greece), one center

MH

16

61.11

58.0

43–72

NA

Retrospective

NA

 

20

 

61.0

36–76

     

Chen13

Asia (Mainland China), one center

MH

256

85.94

44.0

NA

5.1 (256/4985)

Retrospective

NA

Chen10

Asia (Mainland China), one center

MH

89

84.15

45.5

NA

NA

Retrospective

NA

   

157

 

48.6

NA

   

Dai15

Asia (Mainland China), one center

MH

17

88.24

52.0

27–71

6.0 (17/285)

Retrospective

NA

Miao21

Asia (Mainland China), one center

MH

47

87.23

43.0

19–76

9.6 (92/960)

Retrospective

31

Hasegawa18

Asia (Japan), one center

MH

16

50.00

59.3

32–82

NA

Retrospective

NA

Gallagher11

Asia (Mainland China), one center

MH

21

90.48

62.0

38–72

1.5 (21/1406)

Retrospective

NA

Wu8

Asia (Taiwan China), one center

MH

15

100.00

53.0

32–72

4.1 (15/364)

Retrospective

NA

  

EH

25

NA

NA

NA

  

Scudamore9

North America (Canada), one center

MH

18

NA

66.0

NA

7.4 (18/244)

Retrospective

NA

  

EH

43

NA

60.0

NA

  

Qiu1

Asia (Mainland China), one center

MH

292

76.71

53.0

NA

NA

Retrospective

NA

  

EH

138

78.26

50.0

NA

  
  

MH

118

81.36

56.4

27–78

NA

  

Chen6

Asia (Mainland China), one center

 

47

 

54.9

38–76

 

Prospective

36.5, 1–96

  

EH

 

83.75

  

  
   

33

 

54.0

36–77

   
   

158

 

49.2

NA

   

Yang7

Asia (Mainland China), one center

MH

192

85.14

48.1

NA

NA

Retrospective

NA

  

EH

346

83.53

47.5

NA

  

Hu4

Asia (Taiwan China), one center

MH

52

NA

NA

NA

NA

Retrospective

NA

  

EH

63

NA

NA

NA

  

Cheng5

Asia (Taiwan China), one center

MH

63

79.37

58.0

NA

NA

Retrospective

30.6, 1.2–99.7

  

EH

41

78.05

61.0

NA

  
  1. MH = mesohepatectomy; EH = extended- hemihepatectomy; 95% CI = 95% confidence interval; mon = month; NA = not available.