The Value of Voltage Histogram Analysis Derived Right Atrial Scar Burden in the Prediction of Left Atrial Scar Burden
Table 3
Relationship between baseline characteristics and percentage of diseased RA tissue burden (≤0.5 mV) with p values calculated by the Mann–Whitney U test.
Parameter present
Parameter absent
value
Number of patients
Diseased RA tissue burden (median)
Number of patients
Diseased RA tissue burden (median)
Female gender
9
30%
27
21%
0.1796
Age ≥ 65
20
30%
16
20%
0.1222
BMI ≥ 30 kg/m2
6
27%
30
23%
0.7877
BSA ≥ 2 m2
16
22%
20
24%
0.7089
Persistent AF
21
28%
15
19%
0.0712
CHA2DS2-VASc ≥ 2
23
30%
13
15%
0.0305
LVEF < 50%
4
26%
32
24
0.9805
Hypertension
15
21%
21
28%
0.9686
Diabetes mellitus
4
27%
32
21%
0.2916
Previous stroke or TIA
3
24%
33
24%
0.7459
Vascular disease
5
30%
31
21%
0.3476
Coronary artery disease
8
27%
28
23%
0.5369
LAVI (CTA) ≥ 59 ml/m2
17
30%
18
15%
0.0223
RAVI (CTA) ≥ 53 ml/m2
17
30%
18
20%
0.1094
LAVI (HD-EAM) ≥ 78 ml/m2
18
31%
18
16%
0.0064
RAVI (HD-EAM) ≥ 87 ml/m2
18
31%
18
15%
0.0026
LA-Q4
9
38%
27
19%
0.0007
BMI = body mass index, BSA = body surface area, AF = atrial fibrillation, LVEF = left ventricular ejection fraction, TIA = transient ischemic attack, LA/RA = left/right atrium, LAVI/RAVI = left/right atrial volume index, CTA = CT angiogram, and HD-EAM = high-density electroanatomic map.
