Pacing-facilitated proarrhythmia.
The implantable cardioverter-defibrillator (ICD) has been proven to reduce the mortality of patients with life-threatening ventricular arrhythmias, and has become the therapy of choice for patients with aborted sudden cardiac death or poorly tolerated ventricular tachycardias. Abrupt changes in ventricular cycle lengths or short-long-short (S-L-S) sequences might precede the initiation of ventricular tachycardia and ventricular fibrillation. The S-L-S sequences might be passively permitted or actively facilitated by pacing. We present a case of ICD-facilitated ventricular tachycardia.
Second Department of Cardiology, Division of Cardiac Electrophysiology, Evangelismos General Hospital, Athens, Greece. spyrostsik@yahoo.gr
Spyros
S
Tsikrikas
Dimitrios
D
Bramos
George
G
Kollias
Konstantinos P
KP
Letsas
Michalis
M
Efremidis
Antonios
A
Sideris
D001281:Atrial Fibrillation / Q000628:therapy*; D002304:Cardiac Pacing, Artificial / Q000009:adverse effects; D017147:Defibrillators, Implantable / Q000009:adverse effects*; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D017180:Tachycardia, Ventricular / Q000175:diagnosis / Q000209:etiology*