|
|
No Stroke
n = 4398 |
TIA or Stroke
n = 120 (2.7%) |
p Value |
|
Preoperative demographics |
|
Mean Age (years) |
65 |
69 |
|
|
Age > 70 (%) |
37 |
50 |
.004* |
|
Gender (% Male) |
73 |
69 |
.22 |
|
Body Mass Index (kg/m2) |
|
Thin (<23) (%) |
13 |
16 |
.21 |
|
Obese (>27) (%) |
51 |
47 |
.28 |
|
Risk factors |
|
Hypertension (%) |
64 |
73 |
.02* |
|
Diabetes (%) |
30 |
43 |
.002* |
|
Renal failure (%) |
7 |
15 |
.002* |
|
Peripheral vascular disease (%) |
13 |
28 |
<.0001* |
|
Cerebral vascular disease (%) |
14 |
34 |
<.0001* |
|
Previous carotid endarterectomy (%) |
1 |
3 |
.10 |
|
Previous myocardial infarction (%) |
60 |
72 |
.006* |
|
Previous cardiac surgery (%) |
13 |
14 |
.46 |
|
Smoking history (%) |
66 |
72 |
.13 |
|
Hypercholesterolemia (%) |
68 |
73 |
.15 |
|
Ejection Fraction < 30% (%) |
7 |
10 |
.14 |
|
NYHA Functional Class IV (%) |
19 |
29 |
.004* |
|
Clinical Presentation |
|
Unstable angina (%) |
82 |
89 |
.03* |
|
Emergent operation (%) |
7 |
15 |
.002* |
|
Cardiogenic shock (%) |
1 |
2 |
.44 |
|
Intraoperative |
|
Median number of vessels grafted |
3 |
3 |
.19 |
|
Median pump time (min) |
86 |
97 |
.002* |
|
Median cross-clamp time (min) |
58 |
66 |
.06 |
|
Postoperative |
|
Atrial fibrillation (%) |
24 |
33 |
.01* |
|
Myocardial infarction (%) |
3 |
8 |
.01* |
|
Low cardiac output (%) |
8 |
29 |
<.0001* |
|
Median days on ventilator |
1 |
2 |
<.0001* |
|
Median days in ICU |
2 |
4 |
<.0001* |
|
Median days in hospital |
7 |
14 |
<.0001* |
|
In-hospital mortality (%) |
3 |
22 |
.004* |
Univariate Analysis in Patients Stratified by Postoperative Neurological Event Following CABG
*p < 0.05