| Abstract [eng] |
This paper reviews the 1991−2008 experience with non-pharmacological treatment of supraventricular and ventricular tachycardias in the Clinic of Heart and vessel diseases of Vilnius University. We summarized the results of managing 1693 patients: 753 patients with atrioventricular nodal tachycardia, 657 patients with accessory pathways, 169 patients with ventricular tachycardias, and 118 patients with implanted cardioverter defibrillators. We have shown that the success rate of catheter ablation for atrioventricular nodal tachycardia is 99.2% with complication rate 0.53%. The safety of ablating the “slow” pathway in patients with prolonged PQ interval has been shown. The success rate of catheter ablation of accessory pathways is 98.1% with 1.7% complication rate. The most complex accessory pathway localization for ablation was posteroseptal area and midseptal area (the latter because of the risk to induce a complete atrioventricular block). The result of catheter ablation for ventricular tachycardia depends on etiology. For “idiopathic” ventricular tachycardias success rate exceeds 90%. In patients with coronary heart disease and cardiomyopathies, catheter ablation is less effective (60%). During the follow-up with duration up to 11 years, 68.6% of patients with implanted cardioverter defibrillators have experienced therapy delivered by the device. |
