Table 1.

Baseline characteristics of atrial flutter and supraventricular tachycardia patients

	AFL n=59	SVT n=110	p value	AFL presenting in AF/AFL n=26	AFL presenting in sinus n=33	p value
Race
White	43 (73%)	72 (66%)		23 (77%)	20 (70%)
Black	2 (3%)	3 (3%)		2 (6%)	0
Asian	9 (15%)	14 (13%)		5 (15%)	4 (15%)
Latino	3 (5%)	14 (13%)	0.72	2 (6%)	1 (4%)	0.57
Age (years)	61 ± 15	47 ± 17	<0.0001	64 ± 15	57 ± 14	0.073
Male	45 (76%)	49 (44%)	<0.001	25 (76%)	20 (77%)	0.92
Body Mass Index (kg/m2)	29 ± 6	27 ± 7	0.045	29 ± 6	29 ± 7	0.72
Hypertension	26 (44%)	24 (21%)	0.002	14 (42%)	12 (46%)	0.78
Type II diabetes	9 (15%)	9 (8%)	0.14	6 (18%)	3 (12%)	0.48
Coronary artery disease	11 (19%)	5 (5%)	0.002	8 (25%)	3 (12%)	0.21
Congestive heart failure	7 (12%)	0	<0.001	3 (9%)	4 (15%)	0.46
*Ejection fraction (%)	62 ± 5	58 ± 8	0.026	58 ± 10	59 ± 5	0.76
† Creatinine >1.5 mg/dL	2 (4%)	0	0.05	0	2 (8%)	0.11
Statin use	25 (42%)	19 (17%)	<0.001	12 (36%)	13 (50%)	0.29
ACE inhibitor or ARB	16 (27%)	6 (5%)	<0.001	10 (30%)	6 (23%)	0.54
Aspirin	26 (44%)	17 (15%)	<0.001	16 (48%)	10 (39%)	0.44

^*Transthoracic echocardiograms were available for 30 atrial flutter patients and 36 supraventricular tachycardia patients

^†None of the patients had renal disease requiring dialysis therapy

AF denotes atrial fibrillation; AFL denotes atrial flutter; AF/AFL denotes either AF or AFL (one patient in this group had AF); SVT denoted supraventricular tachycardia; ARB denotes angiotensin receptor blocker