Naslov
Long-term results of catheter fulguration of ventricular tachycardia

Autori
Petrač, Dubravko ; Vukosavić, Đuro ; Radić, Berislav ; Holjevac, Ivan ; Stuparić, Nenad ; Stanković, Helena.

Izvornik
Acta clinica Croatica (0353-9466) 33 (1993); 107-120

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
catheter fulguration; ventricular tachycardia

Sažetak
Catheter fulguration was performed in 20 patients with symptomatic ventricular tachycardia (VT) refractory to antiarrhythmic drugs. Their mean age was 53+-14 years. Thirteen patients had coronary artery disease, 3 patients had other type of heart disease, and 4 had no structural heart disease. Seveteen patients had one morphology and 3 patients had two different morphologies of clinical VT with a mean cycle lenght of 350+-55 ms. The mean left ventricular ejectjion fraction was 35+-13%. One to five shocks of 150 to 300 jouls were delivered to the endocardial site of VT origin as determined by endocardial mapping and pacemapping. The earliest VT activation time was 42+-26 ms. A good pacemapping was achieved in 16 patients. The mean delivered cumulative enegy per patient was 810+-480 jouls. During the control electrophysiologic investigation (2 to 3 months later), VT was still inducible in 9 patients. Catheter fulguration was successful in 10 (50%) patients, who had no reccurence of VT (or sudden death) either on no antiarrhythmic drugs (9 patients) or on the same antiarrhythmic drugs that were ineffective before procedure (one patient), over a follow-up period of 28+-19 months. The fulguration was unsuccessful in 10 (50%) patients, a 4 of whom died suddenly within a mean fiollow-up of 8+-1 months. The patients with successful outcome of VT fulguration had significantly lower incidence of VT inducibility during the control investigation than the patients with unsuccessful outcome (80% versus 20%, p<0.01). Catheter fulguration of VT is a relatively effective and safe technique in treatment of highly selected patients, who have monomorphic VT. Successful outcome of VT fulguration may be predicted by the noninducibility of VT 2 to 3 months after the procedure.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

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