[The late results of fulguration of the atrioventricular node using high-energy shocks in patients with supraventricular tachycardias].
OBJECTIVE
To evaluate the long-term efficacy and safety at long term after atrioventricular junction fulguration (complete AV block induction, using high energy shocks, to control drug-resistant supraventricular tachyarrhythmias.


METHODS
Twenty-eight patients, 17 (60.7%) men, with mean age 48.1 years, were submitted to one up to six ablation sessions with high energy shocks. The total delivered energy per patient was 1304 +/- 868 J. Each shock ranged from 100 to 400 J.


RESULTS
After 12 months, at least, 60.6% of patients were in complete atrioventricular block; three (10.8%) were asymptomatic without complete AV block, and in five (17.8%) the ablation was unsuccessful.


CONCLUSIONS
AV junction ablation with high energy shocks is safe and efficient in long-term follow-up.
Nadalin
E
E
Instituto do Coração, Hospital das Clínicas, FMUSP.
Sosa
E
E
Scanavacca
M
M
Scatolini Neto
A
A
Martinelli
M
M
Bellotti
G
G
Pileggi
F
F
D000328:Adult; D000368:Aged; D001283:Atrioventricular Node / Q000503:physiopathology / Q000601:surgery*; D001938:Brazil / Q000453:epidemiology; D017115:Catheter Ablation / Q000379:methods / Q000706:statistics & numerical data; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012074:Remission Induction; D013617:Tachycardia, Supraventricular / Q000453:epidemiology / Q000503:physiopathology / Q000601:surgery*
Resultados tardios da fulguração da junção atrioventricular em pacientes com taquicardias supraventriculares utilizando choques de alta energia.