|   Group  |       Age (years)  |       Gender (males (n, %))  |       Chronic kidney disease  |       Treatment with inotropic agents  |       Mechanic ventilation  |       Previous sternotomy  |    
|   1 (n = 18)  |       49 ± 14  |       12 (67%)  |       2 (11%)  |       16 (89%)  |       18 (100%)  |       1 (6%)  |    
|   2 (n = 14)  |       53 ± 11  |       11 (79%)  |       1 (7%)  |       13 (93%)  |       1 (7%)  |       2 (14%)  |    
|   3 (n = 1)  |       16  |       1 (100%)  |       0  |       1 (100%)  |       0  |       0  |    
|   4 (n = 2)  |       50 ± 1  |       1 (5%)  |       0  |       2 (100%)  |       1 (50%)  |       0  |    
|   5 (n = 7)  |       49 ± 11  |       6 (86%)  |       3 (50%)  |       5 (83%)  |       0  |       0  |    
|   6 (n = 1)  |       38  |       1 (100%)  |       1 (100%)  |       1 (100%)  |       0  |       1 (100%)  |    
|   7 (n = 1)  |       64  |       1 (100%)  |       1 (100%)  |       0  |       1 (100%)  |       0  |    
|   8 (n = 1)  |       45  |       0  |       0  |       1 (100%)  |       1 (100%)  |       0  |    
|   9 (n = 3)  |       39 ± 19  |       3 (100%)  |       0  |       3 (100%)  |       0  |       1 (33%)  |    
|   10 (n = 5)  |       49 ± 19  |       5 (100%)  |       0  |       2 (40%)  |       2 (40%)  |       1 (20%)  |