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Table 1 Preoperative data on the two patient groups

From: 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

Valuables Group A (n = 117) Group B (n = 96) P value
Age (years) 51 (47, 55) 51 (45, 55) 0.609
Male gender (%) 77 (65.8) 68 (70.8) 0.434
Body mass index (kg/m2) 24.9 (23.2, 27.7) 24.7 (23.0, 27.3) 0.402
Time from onset of symptoms to surgery (h) 26 (16, 34) 27 (18.3, 40.5) 0.201
Smoking history (%) 60 (51.3) 54 (56.3) 0.469
Hypertension (%) 97 (82.9) 80 (83.3) 0.934
Diabetes mellitus (%) 4 (3.4) 2 (2.1) 0.865
Coronary heart disease (%) 2 (1.7) 2 (2.1) 0.759
Preoperative complications    
 Coronary malperfusion (%) 0 (0.0) 2 (2.1) 0.117
 Shock (%) 1 (0.9) 2 (2.1) 0.449
 Cerebral malperfusion (%) 0 (0.0) 1 (1.0) 0.268
 Extremity malperfusion (%) 2 (1.7) 2 (2.1) 0.759
 Acute renal failure (%) 4 (3.4) 3 (5.2) 0.790
 Acute liver failure (%) 2 (1.7) 2 (2.1) 0.759
 Acute left heart failure (%) 2 (1.7) 4 (4.2) 0.508
AR (moderate or above (%) 112 (95.7) 96 (100) 0.111
Aortic root true lumen diameter (mm) 40.0 (38.0, 42.0) 40.0 (36.9, 44.2) 0.585
Left ventricular diastolic diameter (mm) 46.2 (43.0, 52.6) 48.0 (44.7, 51.0) 0.771
EF (%) 65.0 (60.1, 67.6) 64.2 (60.7, 67.1) 0.614
  1. Continuous variables were present as median (Q25, Q75). Wilcoxon rank test for continuous variables and chi-square test for categorical variables