Classification of Left Atrial Diseased Tissue Burden Determined by Automated Voltage Analysis Predicts Outcomes after Ablation for Atrial Fibrillation

Table 4

Univariate Cox regression test for predictors of recurrence (separate ON AAD and OFF AAD analyses).

Parameters	(%)		ON AAD analysis			OFF AAD analysis
				OR	CI (95%)		OR	CI (95%)
Gender (female)	26	(24%)	0.94			0.96
kg/m^2	25	(23%)	0.73			0.35
years	41	(38%)	0.28			0.47
Persistent AF	34	(31%)	0.90			0.62
	41	(38%)	0.32			0.53
LVEF <50%	8	(7%)	0.12			0.25
Hypertension	39	(36%)	0.97			0.81
Diabetes mellitus	0	(0%)	—			—
Prior stroke or TIA	5	(5%)	0.11			0.12
Vascular disease	16	(15%)	0.22			0.17
Coronary artery disease	10	(9%)	0.74			0.61
Underlying heart disease	16	(15%)	0.70			0.92
ml (CTA)	56	(51%)	0.27			0.27
Arrhythmia in blanking period	30	(28%)	0.001	3.14	1.55-6.36	0.001	3.28	1.65-6.52
Class IV	23	(21%)	0.10			0.17
Dublin Class IV	21	(19%)	0.012	2.51	1.22-5.14	0.022	2.27	1.12-4.61

AAD: antiarrhythmic drug; AF: atrial fibrillation; BMI: body mass index; CTA: computed tomography angiography; LVEF: left ventricular ejection fraction; LAV: left atrial volume; TIA: transient ischaemic attack.