Benefits of On-X Mitral Valve Replacement in Cases of Infective Endocarditis
Table 1
Pre-operative characteristics of the total patients and per study group.
Total
On-X group
SJM group
value
(n = 40)
(n = 13)
(n = 27)
Age (years)
54.1 ± 13.2
49.6 ± 9.8
56.3 ± 14.2
0.0493
Sex, male
24 (60.0)
8 (61.5)
16 (59.3)
>0.9999
Medical history
Hypertension
11 (27.5)
2 (15.4)
9 (33.3)
0.2859
Dyslipidemia
4 (10.0)
1 (7.7)
3 (11.1)
>0.9999
Diabetes mellitus
2 (5.0)
2 (15.4)
0 (0.0)
0.0891
Renal dysfunction (Cr >1.5 mg/dL)
1 (2.5)
1 (7.7)
0 (0.0)
0.3250
COPD
0 (0.0)
0 (0.0)
0 (0.0)
>0.9999
Atrial fibrillation
2 (5.0)
1 (7.7)
1 (3.7)
>0.9999
Previous cardiac surgery
4 (10.0)
2 (15.4)
2 (7.4)
0.5839
NYHA functional class
I or II
29 (72.5)
8 (61.5)
21 (77.8)
0.4507
III or IV
9 (22.5)
4 (30.8)
5 (18.5)
0.4371
Organism causing the IE
Genus Streptococcus
19 (47.5)
9 (69.2)
10 (37.0)
0.0915
Genus Staphylococcus
7 (17.5)
3 (23.1)
4 (14.8)
0.6622
Staphylococcus aureus
7 (17.5)
3 (23.1)
4 (14.8)
0.6622
Genus Enterococcus
0 (0.0)
0 (0.0)
0 (0.0)
>0.9999
Other
0 (0.0)
0 (0.0)
0 (0.0)
>0.9999
Unidentified
13 (32.5)
1 (7.7)
12 (44.4)
0.0302
Status of the endocarditis
Active
38 (95.0)
13 (100.0)
25 (92.6)
>0.9999
Healed
2 (5.0)
0 (0.0)
2 (7.4)
>0.9999
Indication(s) for initial surgery
Heart failure
17 (42.5)
5 (38.5)
12 (44.4)
>0.9999
Uncontrolled sepsis
8 (20.0)
3 (23.1)
5 (18.5)
>0.9999
Systemic embolic event
17 (42.5)
11 (84.6)
6 (22.2)
0.0004
Mobile vegetation
12 (30.0)
7 (53.8)
5 (18.5)
0.0323
Severe mitral regurgitation
36 (90.0)
11 (84.6)
25 (92.6)
0.5839
Time from diagnosis to procedure (days)
11.0 ± 10.5
9.5 ± 9.8
7.1 ± 9.3
0.7827
Values are mean ± SD or n (%). COPD chronic obstructive pulmonary disease, Cr serum creatinine, IE infective endocarditis, NYHA New York heart association, SJM St. Jude Medical.
