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Table 3 Postoperative event rates of clinical outcomes

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

Events

Total

Non-obese

Obese

P3

P4

FMS

PUS

P1

FMS

PUS

P2

Patients, n (%)

493

180 (36.5)

155 (31.5)

–

88 (17.8)

70 (14.2)

–

  

Infections, n (%)

         

 SSI

38 (7.7)

11 (6.1)

13 (8.4)

0.421

7 (8.0)

7 (10.0)

0.653

0.571

0.694

 DSSI

18 (3.7)

5 (2.8)

5 (3.2)

1.000

4 (4.5)

4 (5.7)

1.000

0.694

0.607

Cardiac, n (%)

         

 Resternotomy for major bleeding

21 (4.3)

7 (3.9)

6 (3.9)

0.983

4 (4.5)

4 (5.7)

1.000

1.000

0.786

 Cardiac arrest

15 (3.0)

5 (2.8)

4 (2.6)

1.000

3 (3.4)

3 (4.3)

1.000

1.000

0.789

 MI

10 (2.0)

3 (1.7)

3 (1.9)

1.000

2 (2.3)

2 (2.9)

1.000

1.000

1.000

 Neurologic dysfunctiona

18 (3.7)

6 (3.3)

6 (3.9)

1.000

3 (3.4)

3 (4.3)

1.000

1.000

1.000

 Temporary

12 (2.4)

4 (2.2)

4 (2.6)

1.000

2 (2.3)

2 (2.9)

1.000

1.000

1.000

 Permanent

6 (1.0)

2 (1.1)

2 (1.3)

1.000

1 (1.1)

1 (1.4)

1.000

1.000

1.000

Renal, n (%)

         

 Acute kidney injuryb

157 (31.8)

57 (31.7)

55 (35.5)

0.460

25 (28.4)

20 (28.6)

0.982

0.587

0.309

 Dialysis (%)

107 (21.7)

37 (20.6)

32 (20.6)

0.984

20 (22.7)

18 (25.7)

0.663

0.683

0.397

 Hepatic insufficiencyc

145 (29.4)

50 (27.8)

46 (29.7)

0.701

26 (29.5)

23 (32.9)

0.655

0.763

0.632

Pulmonary, n (%)

         

 Pneumoniad

335 (68.0)

125 (69.4)

92 (59.4)

0.054

70 (79.5)

48 (68.6)

0.115

0.081

0.187

 Reintubation

97 (19.7)

36 (20.0)

28 (18.1)

0.653

19 (21.6)

14 (20.0)

0.525

0.762

0.730

 Tracheotomy

67 (13.6)

24 (13.3)

20 (12.9)

0.907

14 (15.9)

9 (14.3)

0.589

0.570

0.992

 Ventilation time (h)

108.2 ± 82.3

107.2 ± 62.2

90.2 ± 40.6

0.003

129.8 ± 77.8

106.2 ± 60.0

0.033

0.019

0.045

 Multiple organ dysfunction syndromee, n (%)

16 (3.2)

6 (3.3)

5 (3.2)

0.956

2 (2.3)

3 (4.3)

0.794

0.923

0.993

Transfusion requirements

         

 Packed red blood cells (units)

5.77 ± 4.96

6.75 ± 4.73

4.34 ± 2.99

< 0.001

6.88 ± 4.66

4.76 ± 3.08

0.001

0.832

0.335

 Fresh frozen plasma (mL)

470.8 ± 150.8

480.6 ± 188.6

410.0 ± 99.6

< 0.001

511.9 ± 174.9

435.8 ± 108.5

0.001

0.193

0.082

 Platelets (units)

9.18 ± 5.50

9.66 ± 6.50

8.96 ± 6.70

0.333

10.03 ± 5.32

8.88 ± 5.56

0.188

0.620

0.926

Length of stay

         

 ICU (days)

5.8 ± 3.7

6.3 ± 3.5

5.5 ± 2.6

0.017

7.8 ± 4.7

5.5 ± 3.5

0.001

0.080

1.000

 Hospital (days)

18.9 ± 14.8

20.0 ± 10.8

16.2 ± 9.8

0.001

21.5 ± 10.5

17.2 ± 9.9

0.010

0.282

0.481

 In-hospital mortality, n (%)

25 (5.1)

10 (5.6)

7 (4.5)

0.666

5 (5.7)

3 (4.3)

0.974

1.000

1.000

  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. DSSI deep surgical site infection requiring revision, MI myocardial infarction, SSI surgical site infection
  5. aDefined as coma, delayed awakening, disorientation, convulsions, hemiplegia, severe limb muscle dysfunction, etc.
  6. bDefined as 50% rise in baseline creatinine or new need for dialysis
  7. cDefined as bilirubin greater than 5 mg/dL persisting for more than 5 days postoperatively
  8. dDefined as chest roentgenogram diagnosing pneumonia after cardiac surgery
  9. eDefined as two or more organs or systems simultaneously or sequentially in the process of acute diseases such as severe trauma, shock, infection, and major surgical operations
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Journal of Cardiothoracic Surgery

ISSN: 1749-8090

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