Table 2.

Intraoperative details.

Variable	All (n = 172)	FET group (n = 72)	Proximal group (n = 100)	p-Value
Operative time (min)	330 ± 85	355 ± 79	312 ± 87	<0.001
CPB time (min)	221 ± 67	237 ± 62	209 ± 68	0.001
Cross-clamp time (min)	144 ± 42	160 ± 36	132 ± 42	<0.001
Circulatory arrest time (min)	53 ± 27	72 ± 16	38 ± 25	<0.001
Axillary arterial cannulation	82.6%	87.5%	79.0%	0.16
Antegrade cerebral perfusion	95.3%	100%	93.0%	0.02
Aortic root replacement	37.8%	27.8%	45.0%	0.02
Aortic root repair	38.9%	48.6%	32.0%	<0.001
CABG	9.3%	8.3%	10.0%	0.80

FET, frozen elephant trunk; min, minutes; CPB, cardiopulmonary bypass; CABG, coronary artery bypass grafting. Categorical variables are presented as percentages, and continuous variables are presented as means ±standard deviations.