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Table 3 Univariate analysis of risk factors associated with stroke

From: The use of cIMT as a predictor of postoperative stroke in patients undergoing surgical repair of acute type a aortic dissection

Variables

No-stroke

(n = 66)

Stroke

(n = 10)

OR(95%CI)

P value

Male

55 (83.3)

6 (60.0)

0.30 (0.07–1.24)

0.097

Age (year)

45.6 ± 10.2

47.0 ± 8.4

1.01 (0.95–1.09)

0.684

BMI (kg/m2)

27.5 ± 4.6

26.8 ± 4.9

0.96 (0.82–1.13)

0.638

Hypertension

53 (80.3)

7 (70.0)

0.57 (0.13–2.52)

0.461

Diabetes mellitus

3 (4.5)

0

a

0.995

Hyperlipidemia

5 (7.6)

1 (10.0)

1.36 (0.14–12.97)

0.792

Marfan syndrome

1 (1.5)

0

a

0.995

Smoking history

30 (45.5)

3 (30.0)

0.51 (0.12–2.16)

0.364

Hydropericardium

11 (16.7)

2 (20.0)

1.25 (0.23–6.70)

0.795

LVEF (%)

61.9 ± 5.1

63.9 ± 3.6

1.09 (0.94–1.26)

0.241

White blood cell count (109/l)

11.9 ± 3.2

12.8 ± 1.8

1.11 (0.89–1.38)

0.346

Serum creatinine (umol/l)

84.7 ± 32.7

84.4 ± 24.3

1.00 (0.98–1.02)

0.973

Primary entry tear

 Unknown

11 (16.7)

3 (30.0)

1.0

 

 Ascending aorta

50 (75.8)

7 (70.0)

0.51 (0.11–2.30)

0.384

 Aortic arch

5 (7.6)

0

a

0.993

Coronary artery involvement

18 (27.3)

2 (20.0)

0.67 (0.13–3.44)

0.628

Aortic root repair

 Ascending aorta replacement

43 (65.2)

7 (70.0)

1.0

 

 Bentall procedure

23 (34.9)

3 (30.0)

1.09 (0.53–2.24)

0.806

Lowest nasopharyngeal temperature (°C)

23.5 ± 0.8

23.7 ± 0.5

1.47 (0.61–3.56)

0.394

CPB time (min)

205.4 ± 43.5

207.8 ± 43.6

1.00 (0.99–1.02)

0.871

Cross-clamp time (min)

114.6 ± 31.3

111.0 ± 26.5

1.00 (0.97–1.02)

0.724

Circulatory arrest time (min)

23.1 ± 7.7

22.2 ± 6.1

0.98 (0.89–1.08)

0.737

Intraoperative transfusion of PRBCs

39 (59.1)

5 (50.0)

0.69 (0.18–2.63)

0.589

Intraoperative transfusion of FFP

34 (51.5)

4 (40.0)

0.63 (0.16–2.43)

0.500

Intraoperative transfusion of platelets

5 (7.6)

0

a

0.993

cIMT (mm) > 0.9

27 (40.9)

8 (80.0)

5.78 (1.14–29.35)

0.034

  1. Continuous data are presented as the mean ± standard deviation and categorical data as number (percentage)
  2. Abbreviations: OR odd ratio, 95% CI 95% confidence interval, BMI body mass index, LVEF left ventricular ejection fraction, CABG coronary artery bypass grafting, CPB cardiopulmonary bypass, PRBCs packed red blood cells, FFP fresh-frozen plasma, cIMT carotid intima–media thickness
  3. aThe result failed because of the small sample size