Left Atrial Appendage Exclusion in Atrial Fibrillation Radiofrequency Ablation during Mitral Valve Surgery: A Single-Center Experience
Table 3
Baseline features of patients divided according to the left atrial dimension and type of treatment. Statistical comparisons among groups are shown.
Variables
ML-LAD ≤ 6 cm
value
ML-LAD > 6 cm
value
LAA surgical exclusion (n = 35)
No LAA surgical exclusion (n = 40)
LAA surgical exclusion (n = 17)
No LAA surgical exclusion (n = 8)
Age (mean, years)
65 ± 4.22
65.3 ± 5.9
0.745
63 ± 7.4
65.7 ± 3.2
0.144
Females (n)
22
26
1
10
6
0.729
Type II diabetes (n)
3
5
0.713
2
1
0.543
Type II diabetes (insulin-dependent) (n)
3
3
1
2
1
0.543
Hyperlipidemia (n)
10
10
0.797
3
1
0.752
COPD (n)
2
5
0.438
1
1
0.823
Hypertension (n)
24
21
0.237
10
4
1
Smoking (n)
14
16
1
9
5
1
Previous CVA/TIA (n)
18
14
0.168
3
1
0.791
Chronic kidney disease (n)
13
12
0.625
5
3
1
NYHA III-IV (n)
17
18
0.819
7
4
1
History of endocarditis (n)
4
4
1
2
1
0.543
Warfarin preprocedural therapy (n)
30
33
0.762
16
6
0.475
Left ventricle ejection fraction (mean)
57.1 ± 6.3
55 ± 4
0.086
53.9 ± 2.6
51 ± 6
0.381
Mitral valve replacement with mechanical prosthesis (n)
4
3
0.699
2
1
0.543
Mitral valve replacement with biological prosthesis (n)
8
6
0.554
5
2
0.810
Mitral valve repair (n)
20
25
0.646
12
4
0.578
COPD: chronic obstructive pulmonary disease; CVA: cerebrovascular accident; LAA: left atrial appendage; ML-LAD: medial-lateral left atrium dimensions; NYHA: New York Heart Association; TIA: transient ischaemic attack. A value < 0.05 was considered statistically significant.
