Table 1.

Results of radiofrequency catheter ablation

Arrhythmia	Success rate (%)	Complication rate (%)	Possible additional/ maintenance therapy
AVNRT	98	0–2	None
AVRT	99	1.8	None
Atrial flutter	95	<1	None
AV node ablation for established AF	>99	<1	Permanent pacemaker
AF secondary to focal tachycardia	62	5	Antiarrhythmic drugs

This table shows the outcome of catheter ablation for arrhythmia. Some of these data are likely to be out of date; an example is focal atrial fibrillation in which the techniques are progressing rapidly enough that published data are not applicable to currently used approaches and are likely to underestimate the success rates.

AF, atrial fibrillation; AV, atrioventricular; AVNRT, atrioventricular nodal re-entry tachycardia, AVRT, atrioventricular re-entry tachycardia