Ventricular output failure in a DDD permanent pacemaker associated with increased atrial output.
Previous reports have described the occurrence of ventricular output failure in a permanent DDD pacemaker system related to an increase in the atrial output in the presence of low atrial lead impedance (Medtronic Synergyst/Synergyst II). This phenomenon is seen exclusively following atrial paced events, and may potentially lead to significant bradyarrhythmia or ventricular asystole in a pacemaker dependent patient. We describe the occurrence of analogous behavior in a Medtronic Symbios 7006 generator.
Santucci
P A
PA
Department of Electrophysiology, Rush-Presbyterian-St Luke's Medical Center, Chicago, IL 60611-3833, USA.
Mitra
R L
RL
D000368:Aged; D016275:Atrial Function; D004562:Electrocardiography; D006327:Heart Block / Q000503:physiopathology / Q000628:therapy*; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial; D018754:Ventricular Dysfunction / Q000503:physiopathology*