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Table 2 shows baseline characteristics of enrolled patients

From: Histidine–tryptophan–ketoglutarate solution versus multidose cardioplegia for myocardial protection in cardiac surgeries: a systematic review and meta-analysis

Study ID

Study arms

Age (years)

Male sex

Weight (Kg)

Medical history

NYHA class

Smoking

Diabetes mellitus

Hypertension

Hyperlipidemia

1

2

3

4

Average

Ali et al. [16]

HTK

44.19 ± 11.63

118 (73.8%)

56 (35%)

72 (45%)

80 (50%)

8 (5%)

56 (35%)

80 (50%)

16 (10%)

 

MDC

43.11 ± 10.7

120 (75%)

40 (25%)

56 (35%)

72 (45%)

8 (5%)

80 (50%)

56 (35%)

16 (10%)

Cvetković et al. [17]

HTK

64.5 ± 6.5

40 (74.1%)

21 (38.9%)

24 (44.4%)

40 (74.1%)

24 (44.4%)

1.57 ± 0.6

 

MDC

65.3 ± 6.3

44 (88%)

21 (42%)

20(40%)

44 (88%)

24 (48%)

1.6 ± 0.62

Vivacqua et al. [18]

HTK

63 ± 13

29 (52.7%)

83 ± 17

11 (20%)

32 (58.2%)

39 (70.9%)

 

MDC

70 ± 11

35 (63.6%)

90 ± 22

12 (21.8%)

45 (81.8%)

44 (81.5%)

Gaudino et al. [19]

HTK

64 ± 9

25 (80.7%)

15 (48.4%)

9 (29%)

 

MDC

61 ± 5

21 (72.4%)

18 (62.1%)

7 (24.1%)

Mercan et al. [25]

HTK

60.1 ± 7.8

19 (76%)

12 (48%)*

17 (68%)

9 (36%)

 

MDC

62.7 ± 9.4

21 (84%)

13 (52%)*

12 (48%)

12 (48%)

Kammerer et al. [20]

HTK

65 ± 14

31 (56.4%)

74 ± 13

5 (9.1%)

 

MDC

66 ± 9

36 (69.2%)

77 ± 19

4 (7.7%)

Braathen et al. [10]

HTK

59 ± 2

34 (89.5%)

86 ± 3

 

MDC

59 ± 2

25 (65.8%)

80 ± 2

Demmy et al. [21]

HTK

62

67 (98.5%)

 

MDC

 

61 (89.7%)

Arslan et al. [22]

HTK

60.23 ± 5.6

16 (76.2%)

78.4 ± 11.9

 

MDC

60.38 ± 7.3

19 (90.5%)

75.6 ± 13.2

Careaga et al. [23]

HTK

53 ± 19.75

21 (70%)

 

MDC

  

Beyersdorf et al. [24]

HTK

58 ± 7

9 (75%)

7 (58.3%)

0 (0%)

3 (25%)

7 (58.3%)

0 (0%)

0 (0%)

12 (100%)

0 (0%)

 

MDC

59 ± 8

9 (75%)

8 (66.7%)

2 (16.7%)

4 (33.3%)

10 (83.3%)

0 (0%)

4 (33.3%)

7 (58.3%)

1 (8.3%)

Gallandat huet et al. [6]

HTK

60.7 ± 8.8

107 (81.1%)

 

MDC

60.7 ± 7.6

94 (80.3%)

  1. Data were presented as mean ± standard deviation or number (%)
  2. NYHA: New York Heart Association Functional Classification
  3. *Type-2 diabetes mellitus