Table 5

Predictors of IART Recurrence After Radiofrequency Catheter Ablation

Univariate AnalysisMultivariate Analysis
Hazard Ratio95% CIp ValueHazard Ratio95% CIp Value
Patient factors
 Age at ablation, yrs1.0211.002–1.0400.0341.0281.008–1.0490.007
 Male1.3560.838–2.1970.2151.5160.930–2.4730.095
 Fontan palliation1.7460.930–3.2800.0832.1781.117–4.2490.022
 Mustard repair0.8160.416–1.6000.554
 History of atrial fibrillation1.3460.733–2.4740.338
 Recent onset IART, <1 yr1.0600.628–1.7900.827
Technology
 Electroanatomic mapping0.8440.517–1.3780.498
 Irrigated ablation0.9250.562–1.5230.759
Procedural complexity
 >1 IART circuit1.0200.599–1.7360.943
 Baseline rhythm IART1.0190.627–1.6550.940
Successful RFCA0.4450.273–0.7270.0010.4780.293–0.7810.003

Abbreviations as in Tables 2, 3, and 4.