Research Article

Prediction of Postoperative Acute Kidney Injury Risk Factors for Acute Type A Aortic Dissection Patients after Modified Triple-Branched Stent Graft Implantation by a Perioperative Nomogram: A Retrospective Study

Table 1

Comparison of baseline data and general conditions of two groups before operation.

ItemAKI groupNon-AKI group value

Demographic and baseline risks
Male gender (n, %)50 (67.6%)126 (70.0%)0.703
Age (years)56.95 ± 8.4152.36 ± 10.800.000
Height (cm)169.07 ± 7.25167.37 ± 7.860.110
Weight (kg)72.61 ± 14.5669.78 ± 13.320.135
Body mass index (kg/m2)25.22 ± 3.7624.82 ± 3.900.456
Preoperative LVEF (%)63.55 (60.10, 66.80)64.55 (60.43, 67.06)0.474

Medical history (%)
Smoking history83 (46.1%)38 (51.4%)0.447
Drinking history22 (29.7%)68 (37.8%)0.223
Hypertension158 (87.8%)67 (90.5%)0.529
Diabetes7 (9.5%)15 (8.3%)0.772
Chronic obstructive pulmonary disease5 (6.8%)5 (2.8%)0.260
Marfan syndrome4 (5.4%)9 (5.0%)1.000
Previous aortic operation7 (9.5%)11 (6.1%)0.345

Preoperative complications (%)
Shock13 (17.6%)13 (7.2%)0.013
Moderate/severe pericardial effusion18 (24.3%)34 (18.9%)0.329
Stroke3 (4.1%)2 (1.1%)0.150
Preoperative hepatic dysfunction1 (1.4%)00.291
Malperfusion syndrome16 (21.7%)3 (1.7%)0.000

Preoperative indexes
WBC (×109/L)11.63 (10.19, 14.1)11.25 (8.97, 13.53)0.114
RBC (×1012/L)4.26 (3.79, 4.71)4.36 (3.98, 4.80)0.228
HB (g/L)127.14 ± 27.31126.61 ± 28.810.892
PLT (×109/L)105.00 (9.95, 192.50)121.00 (10.30, 203.50)0.586
D-dimer (ug/mL)16.80 (5.76, 20.00)9.25 (2.75, 20.00)0.010
PT (s)15.89 ± 5.0415.03 ± 10.770.912
ALB (g/L)37.34 ± 7.3338.13 ± 5.920.371
ALT (IU/L)57.22 ± 110.1146.77 ± 119.140.497
AST (IU/L)58.47 ± 100.1251.99 ± 163.180.751
γ-GT (IU/L)46.15 ± 41.4642.39 ± 47.760.555
CR (μmol/L)111.97 ± 32.1899.92 ± 29.980.005
BUN (mmol/L)8.20 ± 5.996.80 ± 3.880.067
LDH (IU/L)433.11 ± 656.92294.40 ± 552.450.087
CRP (mg/L)25.10 (5.31, 49.50)18.40 (8.77, 76.30)0.596
cTnI (ug/L)0.03 (0.01, 0.49)0.02 (0.004, 0.13)0.192

Continuous variables were presented as mean ± standard deviation (SD). Categorical variables were shown as number (%). Student’s t-test or Mann–Whitney U test was used for continuous variables, and chi-square test was used for categorical variables. LVEF, left ventricular ejection fraction; WBC, white blood cell; RBC, red blood cell; HB, hemoglobin; PLT, platelet; PT, prothrombin time; ALB, albumin; ALT, alanine aminotransferase; AST, aspartate aminotransferase; γ-GT, γ-glutamyl transpeptidase; CR, creatinine; BUN, blood urea nitrogen; LDH, lactate dehydrogenase; CRP, C-reactive protein; cTnI, troponin I. Bold values indicate p values less than 0.05.