Mid-term outcomes of modified valve-sparing aortic root replacement versus the Bentall procedure for middle-aged Chinese patients with acute DeBakey I aortic dissection: a single-center retrospective study

Table 4 Follow-up data on the two patient groups

Valuables	Group A (n = 110)	Group B (n = 90)	P value
Follow-up time (months)	95.9 ± 22.7	91.2 ± 20.8	0.130
Cerebral hemorrhage (%)	0 (0.0)	3 (3.3)	0.191
Cerebral infarction (%)	0 (0.0)	1 (1.1)	0.948
Gastrointestinal hemorrhage (%)	1 (0.9)	4 (4.4)	0.268
AR (moderate or above) (%)	2 (1.8)	0 (0.0)	0.590
Perivalvular leakage (%)	0 (0.0)	1 (1.1)	0.948
Biological valve aging (%)	0 (0.0)	0 (0.0)	N/A
Infection (%)	1 (0.9)	2 (2.2)	0.879
Mechanical disturbance of the valve (%)	0 (0.0)	3 (3.3)	0.191
endoleakage (%)	0 (0.0)	6 (6.7)	0.022
Anticoagulation-related thromboembolism/bleeding events* (%)	0 (0.0)	10 (11.1)	0.001
Postoperative aortic valve re-operation (%)	1 (0.9)	8 (8.9)	0.020

Continuous variables were present as median (Q25, Q75) or mean ± SD. Chi-square test for categorical variables and t test or wilcoxon rank sum test for continuous variables
Bold letters indicate a statistically significant difference
*Anticoagulation-related thromboembolism/bleeding events include cerebral hemorrhage, gastrointestinal hemorrhage, mechanical flap stuck event, cerebral infarction, myocardial infarction, because of coagulation function was abnormal

ISSN: 1471-2261