<unk>  involves advancing several flexible<unk> s into the patient's blood vessels, usually either in the femoral vein, internal jugular vein, or subclavian vein. The<unk> s are then advanced towards the heart. Electrical impulses are then used to induce the arrhythmia and local heating or freezing is used to ablate (destroy) the abnormal tissue that is causing it. Originally, a DC impulse was used to create lesions in the intra-cardiac conduction system. However, due to a high incidence of complications, widespread use was never achieved. Newer procedures allow for the terminating of diseased or dying tissue to reduce the chance of arrhythmia.<unk>  is usually performed by an electrophysiologist (a specially trained cardiologist) in a cath lab or a specialized EP lab.
Catheter ablation
Alcohol septal ablation
Microwave ablation
Transmyocardial revascularization
Valvulotomy
Cardiomyoplasty
Transvenous pacing
Pericardial window