Table 2. Types and frequencies of aortic interventions in Group S and Group W, including surgical reinterventions.

	Group S (emergency surgery), N=36	Group W (watchful waiting), N=25
Intervention
Open surgery	36 (100.0)	17 (68.0)
Hemiarch replacement	34 (94.4)	10 (40.0)
Total arch replacement +/− frozen elephant trunk	2 (5.6)	7 (28.0)
Descending aortic replacement	0 (0)	0 (0)
TEVAR	0 (0)	8 (32.0)
Presence of entry tear in theatre or pre intervention computed tomography for TEVAR	16 (44.4)	4 (16.0)
Reinterventions	8 (22.2)	6 (24.0)
Redo total arch replacement	2 (25.0)	1 (16.7)
Open descending aorta	2 (25.0)	0 (0)
Re-sternotomy for other reasons	2 (25.0)	0 (0)
TEVAR	2 (25.0)	5 (83.3)

Data are presented as n (%). TEVAR, transcatheter endovascular aortic repair.