Table 1.
Demographic and clinical data by group
| |
Group A |
Group B |
P |
|---|---|---|---|
| (INVOS, n = 75) | (Control, n = 75) | ||
| Age (yrs) |
67.3 ± 8.5 |
65.9 ± 9.5 |
0.329 |
| Female n (%) |
12 (16.0%) |
15 (20.0%) |
0.523 |
| Weight (kg) |
79.1 ± 14.4 |
75.9 ± 13.0 |
0.140 |
| Height (cm) |
166.9 ± 8.3 |
166.7 ± 8.9 |
0.893 |
| BMI |
28.4 ± 4.6 |
27.2 ± 3.5 |
0.084 |
| BSA (m2) |
1.86 ± 0.19 |
1.83 ± 0.20 |
0.281 |
| LVEF (%) |
47.4 ± 10.8 |
48.3 ± 8.0 |
0.536 |
| Prior MI, n (%) |
42 (56.0%) |
40 (53.3%) |
0.742 |
| Diabetes, n (%) |
17 (22.6%) |
19 (25.3%) |
0.702 |
| Hypertension, n (%) |
62 (82.6%) |
59 (78.6%) |
0.535 |
| COPD, n (%) |
16 (21.3%) |
16 (21.3%) |
1.000 |
| Preoperative Hct (%) |
39.5 ± 3.90 |
40.4 ± 4.53 |
0.246 |
|
Operation |
|
|
|
| CABG (isolated), n (%) |
63 (84.0%) |
58 (77.3%) |
0.348 |
| Number of grafts |
207 in 67 pts |
192 in 66 pts |
|
| MVR, n (%) |
3 (4.0%) |
3 (4.0%) |
|
| MVR/CABG, n (%) |
1 (1.3%) |
0 (0.0%) |
|
| AVR, n (%) |
5 (6.6%) |
4 (5.3%) |
|
| AVR/CABG, n (%) |
3 (4.0%) |
8 (10.6%) |
|
| ASD repair, n (%) |
0 (0.0%) |
2 (2.6%) |
|
| CPB time (min) |
88.8 ± 18.2 |
93.7 ± 29.8 |
0.216 |
| Operation time (min) |
249.9 ± 41.9 |
248.0 ± 59.2 |
0.812 |
|
Postoperative data |
|
|
|
| hmv* |
16.4 ± 24.7 |
14.6 ± 10.3 |
0.558 |
| ICU LOS** |
2.7 ± 3.8 |
2.7 ± 3.6 |
0.999 |
| hospital LOS*** |
10.9 ± 3.6 |
10.2 ± 10.7 |
0.181 |
| LOS > 9◊, n (%) |
51 (68.0%) |
41 (54.7%) |
0.132 |
| Complications, n (%) |
14 (18.6%) |
12 (16.0%) |
0.666 |
| Death, n (%) | 1 (1.3%) | 1 (1.3%) | 1.000 |
* hmv hours of mechanical ventilation (ICU).
** ICU length of stay in nights.
*** Hospital LOS in days (not including days in hospital before surgery).
◊ denotes the number of patients with hospital LOS greater than 9 days.