Table 4:

Adverse Events with Needle Electrode Ablation

	Serious Adverse Events
Stroke/TIA	2
Pericardial effusion requiring drainage	1
Bowel infarct - Fatal	1
Cardiogenic shock - Fatal	1
Femoral pseudoaneurysm	1
Recurrent VT requiring hospitalization (n=7)	7
Heart failure requiring hospitalization	1
Death 6 mos. post ablation: Due to chronic heart failure and sepsis	1
Acute asthma exacerbation	1

^*One death occurred after the bowel infarction on day 2 after ablation; one death occurred at day 1 after ablation due to refractory cardiogenic shock and endocardial dissection; one death occurred at 6 months due to heart failure and sepsis.