TABLE 3.

Outpatient and inpatient atrial fibrillation ablation outcomes

	Outpatient AF ablation (N = 4,885)						Inpatient AF ablation (N = 4,530)
	Cost quintile						Cost quintile
30-day complications	1	2	3	4	5	P value	1	2	3	4	5	P value
All cause rehospitalization	16.1%	11.4%	9.1%	8.7%	8.8%	<0.0001	6.6%	5.5%	7.0%	5.9%	7.2%	0.24
Vascular complication	2.1%	1.2%	1.2%	0.4%	1.2%	0.05	3.8%	3.4%	3.4%	4.4%	5.9%	0.009
Hematoma/hemorrhage	2.1%	0.9%	1.1%	0.2%	1.1%	0.05	2.5%	3.1%	2.3%	4.0%	4.1%	0.02
Perforation/tamponade	1.7%	0.6%	1.2%	0.8%	1.2%	0.38	4.6%	5.9%	5.8%	6.2%	11.3%	<0.0001
Stroke/TIA	0.8%	0.3%	0.2%	0.2%	0.2%	0.06	0.7%	0.6%	0.6%	0.7%	1.6%	0.02
Congestive heart failure	1.3%	0.9%	0.6%	0.6%	0.5%	0.03	1.3%	0.3%	0.3%	0.3%	0.8%	0.25
One-year rehospitalizations
All cause rehospitalization	34.8%	29.7%	26.4%	25.0%	25.6%	<0.0001	36.4%	33.0%	32.1%	32.2%	30.9%	0.02
Atrial fibrillation	16.6%	13.0%	11.1%	12.5%	10.4%	0.001	13.3%	16.9%	15.0%	15.9%	14.6%	0.48
Myocardial infarction/unstable angina	1.0%	0.9%	0.9%	0.6%	1.3%	0.28	1.2%	0.9%	1.7%	1.4%	1.3%	0.23
Congestive heart failure	2.1%	1.4%	1.3%	1.6%	1.0%	0.08	5.6%	2.2%	1.3%	1.5%	2.5%	0.0005
Supraventricular tachycardia	0.0%	0.5%	0.1%	0.5%	0.2%	0.37	0.3%	0.5%	0.3%	0.4%	0.3%	0.34
Ventricular arrhythmia	1.2%	1.2%	0.9%	1.6%	0.6%	0.19	0.8%	0.8%	1.0%	1.4%	1.3%	0.08
Stroke/TIA	1.2%	0.4%	0.4%	0.2%	0.4%	0.04	0.7%	0.2%	0.5%	0.7%	0.4%	0.32
Syncope	0.4%	0.1%	0.2%	0.2%	0.1%	0.2	0.0%	0.2%	0.1%	0.7%	0.3%	0.02
One-year repeat procedures
Repeat AF ablation	21.8%	18.9%	14.7%	15.8%	19.2%	0.16	11.9%	15.2%	15.0%	13.6%	13.8%	0.44
Cardioversion	21.2%	20.6%	20.4%	20.8%	22.5%	0.19	23.5%	24.7%	18.7%	21.9%	18.8%	0.002

AF = atrial fibrillation; TIA = transient ischemic attack.