[Recent advances in radiofrequency catheter ablation].

Radiofrequency catheter ablation has been established as a first-line treatment of various paroxysmal tachycardias, and its developments are still ongoing. As recent advances of radiofrequency catheter ablation, we can point out the following issues: 1) transaortic approach for idiopathic ventricular tachycardia(VT) of LBBB-form with inferior axis, 2) new approach guided by mid-diastolic potential for verapamil-sensitive VT, 3) pulmonary vein(PV) isolation technique guided by PV ostial circular electrogram mapping for paroxysmal atrial fibrillation, 4) new ablation strategies for macro-reentry tachycardia such as incisional atrial tachycardia and VT post old myocardial infarction guided by electro-anatomical mapping, and 5) cooled-tip ablation technique for atrial flutter and VT resistant to conventional system.