表 1. Comparison of postoperative complications between the non-ablation group and the ablation group (within one year).

未消融组和消融组术后并发症比较（术后1年内）

Item	Non-ablation group (n=130)	Ablation group (n=150)
*P<0.05, vs. the non-ablation group.
End points of the study/case (%)
Death	1 (0.8)	1 (0.7)
Cerebrovascular accidents	2 (1.5)	3 (2.0)
Re-admission for heart failure	6 (4.6)	6 (4.0)
Mitral valve reoperation	1 (0.8)	2 (1.3)
Severe complications/case (%)
Heart failure	14 (10.8)	17 (11.3)
Cerebral infarction	3 (2.3)	2 (1.3)
Cerebral hemorrhage	1 (0.8)	0
Permanent pacemaker useage	1 (0.8)	3 (2.0)*
Renal failure	3 (2.3)	5 (3.3)
Re-operation for post-operative bleeding	2 (1.5)	3 (2.0)
Pulmonary infection	10 (7.7)	14 (9.3)
Mediastinal infection	3 (2.3)	4 (2.7)
Respiratory failure (requiring ventilator assistance)	6 (4.6)	9 (6.0)
Late postoperative pericardial effusion (requiring re-drainage)	1 (0.8)	5 (3.3)*