Table 1 Baseline characteristics of the study population

Age, years

53 ± 11

55 ± 12

Male

255 (89.2)

71 (92.2)

Comorbidities

 Hypertension

246 (86.0)

64 (83.1)

 Diabetes mellitus

15 (5.2)

6 (7.8)

 Coronary artery disease

37 (12.9)

14 (18.2)

 Dyslipidemia/statin use

33 (11.5)

11 (14.3)

 Renal dysfunction

54 (18.9)

15 (19.5)

 Stroke

11 (3.8)

6 (7.8)

Anemia

140 (49.0)

35 (45.5)

 Organ malperfusion

  Extremity

31 (10.8)

10 (13.0)

  Abdominal organs

175 (61.2)

45 (58.4)

Laboratory findings

 Base excess value

− 2.6 (− 5.7 to − 0.1)

− 2.0 (− 4.9 to 0.3)

 Base excess stratification

  ≥ 0

68 (23.8)

20 (26.0)

  − 5 to 0

138 (48.3)

41 (53.2)

  − 10 to − 5

61 (21.3)

12 (15.6)

  ≤ − 10

19 (6.6)

4 (5.2)

  pH

7.40 (7.36–7.44)

7.40 (7.36–7.43)

 Bicarbonate, mmol/L

23.1 (21.0–24.5)

23.3 (21.6–25.2)

 Lactate

1.3 (0.8–2.3)

1.3 (0.9–2.2)

 Total cholesterol, mmol/L

4.4 ± 0.9

4.3 ± 1.1

 Triglyceride, mmol/L

1.4 (1.0–1.9)

1.3 (1.0–1.9)

 LDL-c, mmol/L

2.6 (2.1–3.1)

2.8 (1.9–3.2)

 Albumin ≤ 30 g/L

101 (35.3)

19 (24.7)

 D-dimer ≥ 5.44 μg/mL

63 (22.0)

24 (31.2)

 eGFR, mL·min⁻¹·1.73 m⁻²

77.1 (46.3–96.9)

56.1 (42.5–79.9)

Imaging findings

 Diameter ≥ 55 mm

22 (7.7)

13 (16.9)

Extent of dissection

 Confined in thoracic aorta

52 (18.2%)

12 (15.6%)

 Extended to abdominal aorta

234 (81.8%)

65 (84.4%)

 False lumen patency

  Patent

200 (69.9)

60 (77.9)

  Partially thrombosed

81 (28.3)

15 (19.5)

  Completely thrombosed

5 (1.7)

2 (2.6)

 Ejection fraction, %

64.5 (62.0–68.0)

65.0 (62.0–69.0)

 Blood supply of abdominal arteries

  Coeliac artery (TL/FL/TF)

185 (64.7)/92 (32.2)/9 (3.1)

47 (61.0)/25 (32.5)/5 (6.5)

  Superior mesenteric artery (TL/FL/TF)

217 (75.9)/57 (19.9)/12 (4.2)

60 (77.9)/12 (15.6)/5 (6.5)

  Left renal artery (TL/FL/TF)

196 (68.5)/81 (28.3)/9 (3.1)

52 (67.5)/22 (28.6)/3 (3.9)

  Right renal artery (TL/FL/TF)

209 (73.1)/68 (23.8)/9 (3.1)

54 (70.1)/18 (23.4)/5 (6.5)