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Table 1 Patient characteristics

From: How central obesity influences intra-abdominal pressure: a prospective, observational study in cardiothoracic surgical patients

 

Total number of patients

Male

Female

p value

Non-obese

Obese

p value

Total number of patients

186

138 (74 %)

48

N/A

148

38

N/A

Male

138

N/A

N/A

N/A

111

27

N/A

Female

48

N/A

N/A

N/A

37

11

N/A

Age (years), mean (SD)

64.2 (11.6)

64.2 (10.8)

64.1 (13.5)

0.962

64.4 (12.1)

63.1 (9.3)

0.535

Height (cm), mean (SD)

175.2 (9.9)

179.0 (7.4)

164.3 (7.9)

<0.01

175.6 (10.0)

173.5 (9.6)

0.225

Weight (kg), mean (SD)

82.4 (14.1)

86.1 (11.9)

71.9 (14.8)

<0.01

78.6 (12.3)

97.4 (10.3)

<0.01

BMI (kg/m2), mean (SD)

26.8 (3.8)

26.8 (3.2)

26.6 (5.2)

0.793

25.4 (2.5)

32.4 (2.6)

<0.01

WC (cm), mean (SD)

101.9 (10.8)

102.6 (9.7)

99.7 (13.3)

0.168

98.8 (9.4)

113.8 (6.7)

<0.01

HC (cm), mean (SD)

106.1 (8.7)

105.3 (7.4)

108.2 (11.5)

0.108

103.5 (6.9)

116.2 (7.6)

<0.01

WHR, mean (SD)

0.96 (0.07)

0.97 (0.06)

0.92 (0.07)

<0.01

0.95 (0.07)

0.98 (0.06)

0.025

IAP (mmHg), mean (SD)

9.1 (4.4)

9.2 (4.0)

8.6 (5.2)

0.398

8.7 (4.2)

10.4 (4.7)

0.031

IAP ≥ 12

50

40

10

0.086

35

15

0.667

Pre-operative creatinine (umol/l), mean (SD)

86.0 (19.7)

89.3 (19.5)

76.4 (17.3)

<0.01

85.5 (19.4)

87.7 (21.1)

0.546

Pre-operative CRP (mg/l), mean (SD)

7.3 (13.2)

7.2 (13.3)

7.6 (13.3)

0.884

6.7 (12.8)

9.7 (14.7)

0.211

Pre-operative eGFR (ml/min/1.73 m2)

78.2 (17.2)

79.6 (16.8)

73.9 (17.8)

0.046

78.5 (17.0)

77.0 (17.9)

0.627

Postoperative creatinine (umol/l), mean (SD)

74.1 (21.8)

77.5 (21.5)

64.4 (19.9)

<0.01

73.2 (22.0)

77.9 (21.0)

0.230

Postoperative CRP (mg/l), mean (SD)

49.5 (30.1)

52.2 (31.6)

41.9 (23.8)

0.040

46.5 (26.6)

61.1 (39.0)

0.034

Postoperative eGFR (ml/min/1.73 m2)

88.6 (18.6)

89.2 (18.3)

86.7 (19.8)

0.426

89.4 (18.8)

85.6 (17.8)

0.265

Delta eGFR, mean (SD) (ml/min/1.73 m2)

10.4 (10.2)

9.6 (9.7)

12.8 (11.4)

0.059

10.9 (9.9)

8.6 (11.4)

0.223

Comorbidity

Chronic diagnosis at admission ICU

 COPD

17

13

4

N/A

14

3

N/A

 Chronic cardiovascular insufficiency

10

8

2

N/A

8

2

N/A

 Immunological insufficiency

8

6

2

N/A

4

4

N/A

 Metastasized neoplasm

3

2

1

N/A

2

1

N/A

 Respiratory insufficiency

1

1

0

N/A

1

0

N/A

 Hemotological malignancy

1

1

0

N/A

1

0

N/A

Diagnosis at admission ICU

 Cardiovascular resuscitation

1

1

0

N/A

1

0

N/A

 Dysrhythmia

2

1

1

N/A

2

0

N/A

 Mechanical ventilation at admission

186

138

48

N/A

148

38

N/A

 Diabetes

21

12

9

0.103

11

10

0.003

 Myocardial infarction

40

34

6

0.119

32

8

1.0

Diagnosis 24 h after ICU admission

 Acute kidney injury

1

1

0

N/A

1

0

N/A

 Confirmed infection

1

1

0

N/A

1

0

N/A

 Vasoactive medication in first 24 h

164

119

45

0.259

132

32

0.571

 Apache IV score, mean (SD) N = 184

42.8 (13.8)

41.8 (15.0)

43.7 (12.5)

0.435

42.0 (15.3)

43.4 (10.1)

0.521

 Euro score, mean (SD)

7.1 (7.6)

6.4 (7.4)

8.9 (7.9)

0.050

7.6 (8.1)

5.2 (4.7)

0.024

Surgery

 CABG

97

80

17

N/A

74

23

N/A

 CABG + valve

16

9

7

N/A

13

3

N/A

 Valve

58

40

18

N/A

49

9

N/A

 Aneurysm—thoracic aortic repair

9

5

4

N/A

8

1

N/A

 Othera

6

4

2

N/A

4

2

N/A

Operating time (min), mean (SD)

 N = 179

245.9 (88.1)

247.7 (92.1)

240.7 (76.0)

0.642

240.9 (80.1)

265.1 (113.1)

0.138

Perfusion time (min), mean (SD)

 N = 117

149.8 (71.7)

151.4 (78.0)

146.0 (55.9)

0.707

143.7 (64.5)

177.6 (95.4)

0.049

Aorta occlusion time (min), mean (SD)

 N = 101

104.9 (49.0)

106.4 (53.3)

101.7 (38.7)

0.656

102.2 (45.7)

116.5 (61.4)

0.255

ICU

 Mechanical ventilation duration in hours, median (range)

8.0 (187)

7.0 (187)

8.0 (91)

0.402

8.0 (187)

8.0 (85)

0.335

 Reintubation within 72 h after detubation

0

0

0

N/A

0

0

N/A

 Length of stay ICU in days, median (range)

0.91 (19.4)

0.91 (19.4)

0.92 (6.1)

0.588

0.91 (19.4)

0.94 (5.2)

0.060

  1. p < 0.05 is significant
  2. N/A not applicable
  3. aIncludes pericardiectomy, congenital defect repair and ablation