Table 5.

Logistic analysis of intra-operative risk factors for mortality in ATAAD.

	Univariate			Multivariate
Variables	OR	95% CI	P-value	OR	95%CI	P-value
Ascending aorta replacement	1.8	0.6–2.3	0.13
Elephant truck procedure	3.4	1.2–5.8	0.02	4.1	1.4–6.9	0.008
Aortic valve replacement	0.6	−0.57–2.1	0.15
Aortic arch replacement	2.2	0.8–3.7	0.14
CABG	3.3	1.2–7.3	0.007	1.9	0.6–1.5	0.23
Operation time > 9.7 (h)	5.3	1.7–18.4	<0.001	6.0	1.8–18.7	<0.001
CPB time > 227 (min)	4.4	1.5–13.0	<0.001	3.7	1.3–9.3	0.002
HCA time (min)	1.0	0.03–0.6	0.45
Cross-clamp time (min)	1.0	0.004–0.2	0.65
Lowest rectal temperature (°C)	1.5	0.4–3.8	0.05
Cerebral perfusion time (min)	1.0	0.03–0.4	0.54

CPB, cardiopulmonary bypass; HCA, hypothermic circulatory arrest; CABG, coronary artery bypass graft.