Table 2.

Major complications associated with ablation procedures

Arrhythmia	Heart block (%)	Vascular damage/ haematoma (%)	Other (%)	Death (%)
AVNRT	0.9	0.49	0.08 DVT	0
			0.08 PE
			0.08 Pneumothorax
AVRT: left sided	<0.1	3.1	1.7 Tamponade	0
			0.2 Coronary occlusion
AVRT: right free wall	1 (3rd degree)	0	1 PE	0
AVRT: septal	0.5	0.5	0.5 Pneumothorax	0
			0.5 Pericarditis
Atrial flutter	0.4	0.6	0.2 Tamponade	0
			0.2 DVT
			0.2 Haemothorax
			0.2 TR
AV node ablation for established AF	N/A	0.3	0.15 TR	0.15 (pacemaker failure)
AF secondary to focal tachycardia	0	1	2 Tamponade 0.5 Embolic stroke	0

DVT, deep vein thrombosis; PE, pulmonary embolus, TR, tricuspid regurgitation. For key to rest of abbreviations see table 1.