The Role of Radiofrequency Catheter Ablation in the Treatment of Nonischemic Ventricular Tachycardia ; Uloga radiofrekventne kateterske ablacije u liječenju neishemijske ventrikulske tahikardije

Radiofrequency catheter ablation can be used for the treatment of different patient groups with nonischemic ventricular tachycardia (VT). Concerning the small area of induced ventricular injury, a high degree success is expected in patients with idiopathic VT and in patients with bundle branch reentrant VT. The long-term success rate of radiofrequency ablation in the cure of idiopathic VT and bundle branch reentrant VT is about 90% and 100%, respectively. Radiofrequency ablation of VT in arrhythmogenic right ventricular dysplasia (ARVD) can be effective in patients with localized disease and single VT origin. In patients with more extensive ARVD and/or pleomorphic VT, other therapeutic options should be considered. In patients with idiopathic dilated cardiomyopathy, radiofrequency ablation is not curative but may be used as an adjunctive therapy to reduce the frequency and severity of VT. By using the new mapping systems, the application of radiofrequency ablation is expanded to the treatment of VTs requiring chamber compartmentalization or resulting in hemodynamic instability. ; Radiofrekventna kateterska ablacija može se rabiti u liječenju različitih skupina bolesnika s neishemijskom ventrikulskom tahikardijom (VT). Zbog malog područja izazvane ozljede miokarda visok stupanj uspjeha očekuje se kod bolesnika s idiopatskom VT i bolesnika koji imaju VT s kruženjem preko grana. Dugoročna uspješnost radiofrekventne ablacije u izlječenju idiopatske VT je oko 90%, a VT s kruženjem preko grana 100%. Radiofrekventna ablacija VT kod aritmogene displazije desnog ventrikula (ADDV) može biti djelotvorna u bolesnika s lokaliziranom bolešću i jednim izvorištem VT. U bolesnika s proširenom ADDV i/ili više izvorišta VT treba razmotriti druge načine liječenja. Kod bolesnika s idiopatskom dilatacijskom kardiomiopatijom radiofrekventna ablacija ne dovodi do izlječenja VT, ali se može primijeniti kao dodatni terapijski postupak radi smanjenja učestalosti i težine napadaja tahikardije. Upotrebom novih sustava za endokardijalno ...