Table 1

Baseline Characteristics

LARIAT Group
(n = 69)
Ablation-Only Group
(n = 69)
Total
(N = 138)
p Value
Age, yrs67 ± 1067 ± 1067 ± 101.00
Men48 (70)48 (70)96 (70)1.00
Caucasian race62 (90)64 (93)126 (91)0.545
Coronary artery disease20 (29)12 (17)32 (23)0.107
Hypertension51 (74)54 (78)105 (76)0.549
Diabetes mellitus20 (29)18 (26)38 (28)0.703
Heart failure12 (17)10 (15)22 (16)0.551
Cardiomyopathy15 (22)13 (19)28 (20)0.672
Obstructive sleep apnea20 (29)27 (39)47 (34)0.295
Prior stroke/TIA23 (33)11 (16)34 (25)0.018
Gastrointestinal bleed22 (32)14 (20)36 (26)0.121
Renal insufficiency5 (7)10 (15)15 (11)0.171
Sinus node dysfunction18 (26)12 (17)30 (22)0.216
Prior cardiac device17 (25)12 (17)29 (21)0.296
CHADS2 score2.46 ± 1.302.02 ± 1.192.25 ± 1.260.040
CHADSVASc score3.68 ± 1.643.09 ± 1.333.38 ± 1.520.022
HAS-BLED2.91 ± 1.252.33 ± 1.202.62 ± 1.260.007
LA size5.0 ± 0.524.8 ± 0.64.9 ± 0.60.006
Left ventricular ejection fraction53 ± 1153 ± 1153 ± 110.921
Baseline LA volume168 ± 35166 ± 29167 ± 330.721
Post-procedure LA volume129 ± 32149 ± 30139 ± 32<0.001
AADs69 (100)69 (100)138 (100)1.00
 Class I33 (48)26 (38)59 (43)
 Dofetilide15 (22)17 (25)32 (23)
 Sotalol11 (16)13 (19)24 (17)
 Amiodarone4 (6)5 (7)9 (7)
 Dronedarone6 (9)8 (12)14 (10)
 Beta-blockers51 (74)50 (73)101 (73)0.848
 Calcium-channel blockers17 (25)20 (29)37 (27)0.564
Anticoagulation0.153
 Warfarin41 (59)49 (71)90 (65)
 Rivaroxaban28 (41)20 (29)48 (35)

Values are mean ± SD or n (%).

AAD = antiarrhythmic drug; LA = left atrial; TIA = transient ischemic attack.