Table 2.

Rotor Mapping Results

	All Procedures, n=24	Acute Procedural Success, n=12	No Acute Procedural Success, n=12	P Value
No. of LA rotors identified	1.6±0.8	1.7±0.9	1.5±0.7	0.61
No. of RA rotors identified	0.6±0.8	0.7±0.9	0.6±0.8	0.81
Proportion of LA surface area mapped with basket catheter	54±15%	56±16%	53±15%	0.75
No. of basket electrodes with adequate atrial electrogram	31±17	27±18	35±16	0.28
Dominant frequency at rotor sites. Hz	4.8±1.3	4.8±1.4	5.0±1.3	0.62
Dominant frequency at nonrotor sites, Hz	4.7±1.6	4.8±1.6	4.6±1.7	0.06
Shannon entropy at rotor sites	4.8±0.5	4.8±0.3	4.9±0.7	0.35
Shannon entropy at nonrotor sites	4.9±0.6	4.8±0.5	5.0±0.6	0.08
Patients with rotational activity or focal source at rotor site on electroanatomic mapping	1 (4%)	0 (0)	1 (8%)	0.34

Values are n (%), mean±SD. LA indicates left atrium; and RA, right atrium.