Research Article

Construction of a Clinical Predictive Model of Left Atrial and Left Atrial Appendage Thrombi in Patients with Nonvalvular Atrial Fibrillation

Table 1

Comparison of the baseline condition between non-LA/LAA thrombi and LA/LAA thrombi group.

VariablesOverallLA/LAA thrombi (-)LA/LAA thrombi (+)P Value

n12101071139
Age, years (mean ± SD)61.20 (10.08)60.80 (10.12)64.29 (9.29)<0.001
Male, n (%)720 (59.5)645 (60.2)75 (54.0)0.185
BMI, kg/m2 (mean ± SD)26.75 (12.89)26.65 (11.76)27.53 (19.57)0.448
Smoke, n (%)231 (19.1)211 (19.7)20 (14.4)0.166
Alcohol, n (%)204 (16.9)180 (16.8)24 (17.3)0.987
Hypertension, n (%)683 (56.4)595 (55.6)88 (63.3)0.1
DM, n (%)204 (16.9)175 (16.3)29 (20.9)0.223
Myocardial infarction, n (%)30 (2.5)23 (2.1)7 (5.0)0.077
Previous HF, n (%)500 (41.3)398 (37.2)102 (73.4)<0.001
Vascular disease, n (%)46 (3.8)39 (3.6)7 (5.0)0.567
Stroke/TIA, n (%)301 (24.9)257 (24.0)44 (31.7)0.063
Coronary heart disease, n (%)370 (30.6)320 (29.9)50 (36.0)0.171
Paroxysmal AF, n (%)698(57.7)686(64.1)12(8.6)<0.001
Persistent AF, n (%)512 (42.3)385 (35.9)127 (91.4)<0.001
CHA2DS2 score, (M [QL, QU])1.00 [1.00, 3.00]1.00 [1.00, 3.00]2.00 [1.00, 3.00]<0.001
CHA2DS2-VASc score, (M [QL, QU])3.00 [1.00, 4.00]3.00 [1.00, 4.00]4.00 [2.00, 5.00]<0.001
RDW, % (mean ± SD)42.41 (3.87)42.27 (3.90)43.52 (3.44)<0.001
LDL-C, mmol/L (mean ± SD)2.52 (0.79)2.52 (0.79)2.52 (0.79)0.941
D-dimer, μg/L (M [QL, QU])0.08 [0.05, 0.15]0.08 [0.05, 0.15]0.10 [0.06, 0.19]0.003
Fib, g/L (mean ± SD)2.91 (1.06)2.88 (1.05)3.18 (1.11)0.002
BNP, pg/mL (M [QL, QU])87.45 [37.00, 202.75]73.30 [31.80, 178.50]251.00 [130.50, 413.50]<0.001
Cr, mg/dL (mean ± SD)72.72 (21.16)72.21 (21.42)76.63 (18.72)0.021
Uric acid, μmol/L (mean ± SD)324.13 (93.21)321.02 (91.96)348.15 (99.47)0.001
E-wave, cm/s (mean ± SD)80.93 (32.31)78.67 (31.47)98.42 (33.44)<0.001
e’ velocity, cm/s (mean ± SD)6.41 (2.01)6.45 (2.00)6.12 (2.02)0.073
E/e' ratio (mean ± SD)13.38 (5.31)12.88 (4.87)17.25 (6.78)<0.001
LA diameter, mm (mean ± SD)37.90 (5.66)37.24 (5.35)42.99 (5.41)<0.001
LVEDV, mL (mean ± SD)102.45 (26.83)101.78 (26.17)107.62 (31.08)0.016
LVESV, mL (mean ± SD)39.96 (15.73)39.03 (14.91)47.12 (19.64)<0.001
LVEF, % (mean ± SD)61.44 (7.69)61.99 (7.26)57.17 (9.39)<0.001

Abbreviations: BMI, body mass index; DM, diabetes mellitus; HF, heart failure; RDW, red cell distribution width; LDL –C, low-density lipoprotein; BNP, B-type natriuretic peptide; Cr, creatinine; LA, left atrial; LVEDV, left ventricular end-diastolic volume; LVESV, left ventricular end-systolic volume; LVEF, Left ventricular ejection fraction.