Table 1.

Preoperative Characteristics and Comorbidities

	All Participants n=64	ATAAD n=21	pTAA n=43
Age (years)	57 (49, 64)	55 (47, 59)	60 (53, 65)
Sex, male	55 (86)	18 (86)	37 (86)
Body mass index (kg/m2)	29.9 (26.6, 33.8)	28.7 (26.6, 32.6)	30.6 (26.6, 35.2)
Aortic valve indications
Aortic insufficiency, mod-to-severe	24 (41)	4 (24)	20 (48)
Aortic stenosis, mod-to-severe	13 (25)	2 (14)	11 (28)
Bicuspid aortic valve	23 (36)	1 (4.8)	22 (51)
Thoracic aortic aneurysm
Root	26 (41)	7 (33)	19 (44)
Ascending	43 (67)	8 (38)	35 (81)
Arch	16 (25)	4 (19)	12 (28)
Descending	1 (16)	0 (0)	1 (2.3)
Max diameter (cm)	5.3 (4.7, 5.6)	5.1 (4.5, 5.5)	5.3 (4.7, 5.7)
Risk Factors
Hypertension	50 (78)	17 (81)	33 (77)
Dyslipidemia	39 (61)	7 (33)	32 (74)
Peripheral vascular disease	13 (20)	9 (43)	4 (9.3)
Smoking history, former/current	35 (55)	12 (57)	23 (53)
Diabetes	10 (16)	1 (4.8)	9 (21)
Chronic lung disease	6 (9.4)	0 (0)	6 (14)
Chronic kidney disease	4 (6.2)	2 (9.5)	2 (4.6)
On dialysis	2 (3.1)	1 (4.8)	1 (2.3)
Coronary artery disease	20 (31)	3 (14)	17 (40)
History of myocardial infarction	6 (9.4)	0 (0)	6 (14)
History of stroke	3 (4.7)	0 (0)	3 (7.0)
History of heart failure	8 (12)	1 (4.8)	7 (16)
Heart failure within 2 weeks of operation	2 (3.1)	0 (0)	2 (4.7)
NYHA classification
I	41 (64)	18 (86)	23 (53)
II	17 (27)	2 (9.5)	15 (35)
III	5 (7.8)	1 (4.8)	4 (9.3)
IV	1 (1.6)	0 (0)	1 (2.3)
Previous cardiac intervention	14 (22)	2 (9.5)	12 (28)
Previous cardiac surgery	10 (16)	2 (9.5)	8 (19)

Data presented as median (25%, 75%) for continuous data and n (%) for categorical data.

Abbreviations: ATAAD=acute type A aortic dissection; NYHA=New York heart association; pTAA=thoracic aortic aneurysm.