[Transcatheter radiofrequency bundle branch ablation in bundle branch reentry ventricular tachycardia: report of a case].
Two patients with branch to branch ventricular tachycardia (BBVT) are reported: successful radiofrequency catheter ablation of BBVT was performed in both, delivering energy distally to the point where the maximum amplitude of His deflection occurred, so that a wide ventricular deflection was obtained without any atrial electrogram. No significant conduction delay appeared but a right bundle branch block. HV intervals during BBVT resulted equal or longer than in sinus rhythm: whether this was secondary to anatomical or functional variations or to the possibility that the His bundle may be "bystander" in BBVT, is discussed.
Gherarducci
G
G
Istituto di Cardiologia, Università degli Studi, Pisa.
De Ponti
R
R
Salerno-Uriarte
J A
JA
Storti
C
C
Stanke
A
A
Mariani
M
M
D000328:Adult; D002311:Cardiomyopathy, Dilated / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery; D017115:Catheter Ablation; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications; D008297:Male; D008875:Middle Aged; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000000981:diagnostic imaging / Q000601:surgery*
Ablazione transcatetere con radiofrequenza della tachicardia ventricolare da rientro tra le branche: descrizione di due casi.