Table 4 Mid-term prognosis and follow-up results of the two groups.

From: Outcomes of two-stage type II hybrid aortic arch repair in elderly patients with acute type A aortic dissection

 

Before PSM (n = 119)

After PSM (n = 50)

TAR with FET (n = 88)

HAR (n = 31)

t/χ2

P value

TAR with FET

(n = 25)

HAR

(n = 25)

t/χ2

P value

Aortic diameter of true lumen

 Ascending aorta (mm)

26.3 ± 0.9

26.4 ± 1.0

-0.333

0.739

26.2 ± 0.9

26.3 ± 0.9

0.012

1.000

 Aortic arch (mm)

27.1 ± 1.1

29.3 ± 1.5

-8.227

 < 0.001

26.8 ± 1.2

29.1 ± 1.9

-5.117

 < 0.001

 Middle descending thoracic aorta (mm)

21.4 ± 1.9

23.7 ± 2.1

-5.374

 < 0.001

21.6 ± 1.8

24.1 ± 1.9

-4.776

 < 0.001

 Renal artery level (mm)

19.2 ± 2.5

19.9 ± 2.7

-1.252

0.213

19.0 ± 2.3

19.9 ± 2.6

-1.296

0.201

 Middle abdominal aorta level (mm)

18.1 ± 2.4

19.0 ± 2.5

-1.695

0.093

17.8 ± 2.3

19.1 ± 2.4

-1.955

0.056

False lumen thrombosis#

 Distal arch level (n, %)

71 (94.7)

28 (96.6)

0.162

0.687

23 (92.0)

25 (100.0)

 

1.000*

 Middle descending thoracic aorta (n, %)

47 (62.7)

24 (82.8)

3.897

0.048

15 (60.0)

21 (84.0)

3.571

0.059

 Renal artery level (n, %)

14 (18.7)

11 (37.9)

4.250

0.039

4 (16.0)

10 (40.0)

3.571

0.059

 Middle abdominal aorta level (n, %)

9 (12.0)

6 (20.7)

1.279

0.258

2 (8.0)

5 (20.0)

1.495

0.221

 Internal leakage (n, %)

6 (8.0)

2 (6.9)

0.036

0.850

2 (8.0)

1 (4.0)

 

1.000*

 Follow-up mortality (n, %)

7 (9.3)

2 (6.9)

0.157

0.692

2 (8.0)

1 (4.0)

 

1.000*

 Reoperation (n, %)

6 (8.0)

1 (3.4)

0.690

0.406

2 (8.0)

1 (4.0)

 

1.000*

  1. TAR total aortic arch replacement, FET frozen elephant trunk implantation, HAR hybrid II aortic arch replacement.
  2. #False lumen thrombosis is defined as thrombosis of > 80% or complete obliteration of the false lumen.
  3. *Indicates Fisher’s exact test.
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