Left posterior fascicular tachycardia due to localized microreentry.
Fascicular tachycardia in young patients without overt heart disease constitutes a rare but electrophysiologically distinct arrhythmia entity. Microreentry within the left posterior fascicle has been proposed as its mechanism, but evidence for this is inconclusive. This report details a patient with incessant fascicular tachycardia. The electrophysiological features, in particular the pattern of resetting response, provided strong evidence for reentry as the tachycardia mechanism. Satisfactory long-term arrhythmia control was achieved with flecainide.
Tai
Y T
YT
Academic Department of Cardiology, Freeman Hospital, Newcastle-upon-Tyne, U.K.
D'Onofrio
A
A
Bourke
J P
JP
Campbell
R W
RW
D000328:Adult; D004562:Electrocardiography; D004594:Electrophysiology; D005424:Flecainide / Q000627:therapeutic use; D006801:Humans; D008297:Male; D013610:Tachycardia / Q000188:drug therapy / Q000503:physiopathology*
D005424:Flecainide