Table 2.
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.