Fig 1.
Schematic representation of lesion sets created with BRFA.
BRFA: bipolar radiofrequency ablation; LAA: left atrial appendage; RAA: right atrial appendage; IVC: inferior vena cava; SVC: superior vena cava.
Table 1.
Clinical characteristics of patients.
Table 2.
Univariate analysis the relating risk factors for late AF recurrence.
Fig 2.
Kaplan-Meier Curves estimates of patients freedom from AF after BRAF.
(A) Freedom from AF after BRFA in overall patients. (B) Freedom from AF after BRAF in patients with and without late AF recurrence (Log rank p test = 0.000). AF: atrial fibrillation; BRFA: bipolar radiofrequency ablation; LRAD: late recurrence of AF.
Table 3.
Multivariate analysis the relating risk factors for late AF recurrence.
Fig 3.
Comparison of NYHA class changes in patients with and without LRAF.
Decrease in NYHA class after BRFA were significantly greater in patient without LRAF (p = 0.006). BRFA: bipolar radiofrequency ablation; LRAF: late recurrence of AF; NYHA: New York Heart Association.
Table 4.
Changes in echocardiographic parameters and NYHA class between preoperation and late postoperatively.