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Table 1 Preoperative characteristics

From: Surgical outcomes associated with partial upper sternotomy in obese aortic disease patients

 

Total

Non-obese

P1

Obese

P2

P3

P4

FMS

PUS

FMS

PUS

Patients (n)

493

180 (36.5)

155 (31.5)

88 (17.8)

70 (14.2)

  

Age (years)

53.9 ± 12.5

54.4 ± 10.4

52.7 ± 9.8

0.126

55.9 ± 10.8

54.0 ± 11.5

0.287

0.275

0.384

BMI (kg/m2)

26.99 ± 5.48

25.4 ± 3.9

24.8 ± 4.0

0.166

30.11 ± 3.04

30.56 ± 3.09

0.360

< 0.001

< 0.001

Male, n (%)

393 (79.7)

149 (82.8)

119 (76.8)

0.171

70 (79.5)

55 (78.6)

0.881

0.520

0.766

Chronic diseases

         

 Diabetes, n (%)

81 (16.4)

28 (15.6)

25 (16.1)

0.886

16 (18.2)

12 (17.1)

0.865

0.586

0.849

 Hypertension, n (%)

402 (81.5)

144 (80.0)

126 (81.3)

0.766

79 (89.8)

63 (90.0)

0.962

0.044

0.099

 Hyperlipidemia, n (%)

85 (17.2)

27 (15.0)

23 (14.8)

0.967

20 (22.7)

15 (21.4)

0.845

0.118

0.222

 Coronary heart disease, n (%)

40 (8.1)

14 (7.8)

14 (9.0)

0.679

8 (9.1)

4 (5.7)

0.426

0.713

0.396

 Renal dysfunctiona, n (%)

112 (22.7)

40 (22.2)

33 (21.3)

0.837

20 (22.7)

19 (27.1)

0.523

0.926

0.335

 COPD, n (%)

29 (5.9)

8 (4.4)

8 (5.2)

0.759

7 (8.0)

6 (8.6)

0.889

0.373

0.495

 OSAS, n (%)

48 (9.7)

15 (8.3)

14 (9.0)

0.821

9 (10.2)

10 (14.3)

0.436

0.610

0.237

 Moderate or severe AR, n (%)

170 (34.5)

60 (33.3)

53 (34.2)

0.868

30 (34.1)

27 (38.6)

0.560

0.902

0.525

 Malperfusion syndromes, n (%)

88 (17.8)

32 (17.8)

29 (18.7)

0.826

15 (17.0)

12 (17.1)

0.987

0.882

0.778

 EF, (%)

62.7 ± 6.7

63.5 ± 9.9

62.8 ± 7.7

0.468

61.7 ± 8.9

62.5 ± 10.2

0.600

0.150

0.827

 Serum creatinine (umol/L)

118.8 ± 98.6

112.6 ± 87.8

113.9 ± 98.4

0.898

119.6 ± 98.6

120.5 ± 88.5

0.953

0.557

0.632

 Hb (mg/dl)

12.58 ± 2.05

12.56 ± 2.35

12.86 ± 2.84

0.298

12.66 ± 2.88

12.69 ± 2.01

0.939

0.778

0.608

 HCT (%)

41.50 ± 3.96

40.98 ± 3.96

41.80 ± 3.64

0.051

40.94 ± 3.87

41.57 ± 3.88

0.312

0.938

0.260

Primary indication

   

0.422

  

0.742

0.893

0.209

 Aortic aneurysm

83 (16.8)

33 (18.3)

22 (14.2)

 

14 (15.9)

14 (20.0)

   

 Type A aortic dissection

401 (81.4)

144 (80.0)

128 (82.6)

 

73 (83.0)

56 (80.0)

   

 Type A AIH

9 (1.8)

3 (1.7)

5 (3.2)

 

1 (1.1)

0 (0.0)

   
  1. Continuous variables are confirmed normally distributed and are expressed as mean ± SD, categorical variables are expressed as number (%). Chi-square or Fisher test for categorical variables and t test for continuous variables
  2. P1, P2: P value of FMS group versus PUS group in non-obese and obese patients, respectively
  3. P3, P4: P value of non-obese patients versus obese patients in FMS and PUS group, respectively
  4. AR aortic valve regurgitation, LVEF left ventricular ejection fraction, COPD chronic obstructive pulmonary disease, OSAS obstructive sleep apnoea syndrome, EF ejection fraction, Hb haemoglobin, HCT haematocrit, SD standard deviation, AIH aortic intramural hematoma
  5. aDefined as preoperative creatinine greater than 1.5 mg/dL