Table 5.

Causes of thoracic reintervention

Variables	group A (N = 249)	group B (N = 172)	p-value
Sac enlargement	6 (2.4)	14 (8.1)	0.007
Residual re-entry flow	0 (0.0)	6 (3.5)	0.01
Unknown	6 (2.4)	8 (4.6)	0.32
Migration	3 (1.2)	0 (0.0)	0.39
Endoleak	18 (7.2)	13 (7.6)	0.95
type 1a	4 (1.6)	4 (2.3)	0.87
type 1b	3 (1.2)	2 (1.2)	0.97
type 2	4 (1.6)	1 (0.6)	0.62
type 3	4 (1.6)	6 (3.5)	0.36
type 4	3 (1.2)	0 (0.0)	0.15
Aorto-bronchial fistula	1 (0.4)	0 (0.0)	0.40
Aorto-esophageal fistula	0 (0.0)	1 (0.6)	0.23
Retrograde type A aortic dissection	0 (0.0)	4 (2.3)	0.02
Stent graft-induced new entry	5 (2.0)	9 (5.2)	0.12

Data are presented as n (%)