Association of dissected ascending aorta diameter with preoperative adverse events in patients with acute type A aortic dissection

Table 1 Demographic characteristics and preoperative details of patients

Variable	Total number of patients (N = 108)
Age, yr, median (IQR)	61.5 (52.5-70.5)
Body mass index, cm2, median (IQR)	28.2 (25.1-32.6)
Female, n (%)	37 (25)
History of hypertension, n (%)	93 (86.1)
History of smoking, n (%)	65 (60.2)
Aortic regurgitation, n (%)	29 (26.8)
Left ventricle ejection fraction, %, median (IQR)	45 (40-50)
Diabetes mellitus, n (%)	11 (10.2)
Preoperative neurological dysfunction, n (%)	22 (16.1)
Temporary neurological dysfunction	14 (13.0)
Permanent neurological dysfunction	3 (2.7)
Preoperative hemodynamic instability, n (%)	35 (32.4)
Maximum diameter of ascending aorta, cm, median (IQR)	5.0 (4.5-6)
NT-proBNP, pg/mL, median (IQR)	377.5 (180-928)
D-Dimers, µg/L, median (IQR)	5256.5 (2477-10000)

NT-proBNP: N-terminal pro-brain natriuretic peptide; IQR: Interquartile range.

Table 2 Multivariable logistic regression analysis of risk factors for preoperative neurological dysfunction

Variable	P value	OR	95%CI
Age	0.28	1.1	0.97-1.09
Gender	0.46	1.7	0.38-8.12
Body mass index	0.42	1.1	0.92-1.19
Diameter of ascending aorta	0.70	1.1	0.68-1.74

OR: Odds ratio; CI: Confidence interval.

Table 3 Multivariable logistic regression analysis of risk factors for preoperative hemodynamic instability

Variable	P value	OR	95%CI
Age	0.021	1.05	1.01-1.11
Gender	0.76	0.81	0.21-3.11
Body mass index	0.56	0.97	0.86-1.08
Diameter of ascending aorta	0.86	1.1	0.68-1.57

¹Statistical significance (P < 0.05).

OR: Odds ratio; CI: Confidence interval.