Table 1 Baseline data of aortic aneurysm patients in intensive care unit after open surgery

General condition

Admission type

 < 0.001

ELECTIVE

282 (74.8%)

8 (28.6%)

EMERGENCY

86 (22.8%)

20 (71.4%)

URGENT

9 (2.4%)

0 (0.0%)

Death in hospital

2 (0.5%)

28 (100.0%)

 < 0.001

Death within 90 days

8 (2.1%)

28 (100.0%)

 < 0.001

Death within 365 days

20 (5.3%)

28 (100.0%)

 < 0.001

LOS in hospital (days)

9.06 [6.27, 14.15]

12.00 [4.07, 19.01]

 < 0.001

LOS in intensive care unit (days)

3.08 [1.86, 6.81]

11.88 [2.65, 19.19]

0.782

Age (years)

68.58 [59.14, 75.40]

76.80 [70.14, 80.96]

 < 0.001

Type of aortic aneurysm

 < 0.001

Abdominal aneurysm without mention of rupture

101 (26.8%)

8 (28.6%)

Abdominal aneurysm, ruptured

25 (6.6%)

10 (35.7%)

Thoracic aneurysm without mention of rupture

216 (57.3%)

5 (17.9%)

Thoracic aneurysm, ruptured

5 (1.3%)

1 (3.6%)

Thoracoabdominal aneurysm, ruptured

5 (1.3%)

2 (7.1%)

Thoracoabdominal aneurysm, without mention of rupture

25 (6.6%)

2 (7.1%)

Male

248 (65.8%)

13 (46.4%)

0.063

Aortic rupture

35 (9.3%)

13 (46.4%)

 < 0.001

Comorbidity

Sepsis

6 (1.6%)

6 (21.4%)

 < 0.001

Chronic pulmonary diseases

81 (21.5%)

7 (25.0%)

0.843

Peripheral vascular diseases

198 (52.5%)

9 (32.1%)

0.059

hypertension

22 (5.8%)

3 (10.7%)

0.53

Renal failure

27 (7.2%)

4 (14.3%)

0.318

Coagulopathy

66 (17.5%)

11 (39.3%)

0.01

Fluid and electrolyte disorders

82 (21.8%)

7 (25.0%)

0.87

Laboratory indicators on admission

Anion gap (mEq/L)

12.00 [11.00, 14.00]

17.00 [15.75, 22.00]

 < 0.001

Bicarbonate (mEq/L)

23.00 [21.00, 25.00]

17.50 [15.75, 21.00]

 < 0.001

Creatinine (mg/dL)

1.00 [0.80, 1.20]

1.65 [1.15, 2.10]

 < 0.001

Blood urea nitrogen (mg/dL)

17.00 [13.00, 21.00]

27.00 [20.75, 34.25]

 < 0.001

Hematocrit (%)

25.00 [21.10, 29.00]

24.65 [21.00, 26.10]

0.266

Hemoglobin (g/dL)

8.50 [7.40, 9.80]

8.35 [7.00, 8.80]

0.106

PTT (sec)

41.45 [34.35, 51.55]

76.45 [43.55, 122.25]

 < 0.001

PT (sec)

15.80 [14.60, 17.50]

17.55 [14.75, 19.40]

0.074

INR

1.50 [1.30, 1.70]

1.80 [1.37, 2.32]

0.026

white blood cell count

(K/μL)

12.50 [9.90, 15.70]

14.65 [10.38, 16.95]

0.048

Platelet count (K/μL)

124.00 [89.75, 156.00]

84.50 [61.00, 120.00]

 < 0.001

Treatment

Extracorporeal circulation

243 (64.5%)

7 (25.0%)

 < 0.001

Bypass surgery

14 (3.7%)

2 (7.1%)

0.692

Ventilation in first day

356 (94.4%)

26 (92.9%)

1

Urine output on first day (ml)

2026.00 [1393.50, 3038.75]

948.00 [344.00, 1428.00]

 < 0.001

Severity scores

GCS

15.00 [14.25, 15.00]

15.00 [15.00, 15.00]

0.133

SOFA

5.00 [4.00, 8.00]

9.00 [7.75, 11.25]

 < 0.001

SAPSII

32.00 [26.00, 42.00]

49.50 [43.75, 65.00]

 < 0.001