Incessant atrioventricular dissociation due to far-field QRS oversensing and recurrent mode switch in a dual chamber pacemaker.
We report the case of a repetitive and incessant activation of mode switch in a dual chamber pacemaker because of the inappropriate sensing by the atrial lead of far-fields signals from the ventricular evoked response. The incidence, consequences and prevention of the oversensing of far-field QRS complexes are discussed.
Division of Cardiology, University Hospital, Lausanne, Switzerland.
P
P
Maury
J
J
Schlaepfer
M
M
Arbane
G
G
Girod
L
L
Kappenberger
D000368:Aged; D004562:Electrocardiography; D004868:Equipment Failure; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial