atrial and ventricular oversensing
Tracing
Manufacturer Abbott
Device PM
Field Management of atrial arrhythmias
N° 35
Patient
61-year-old man implanted with an Assurity MRITM pacemaker for paroxysmal atrioventricular block; recording of several episodes of HVR in the device memory.
Graph and trace
Atrial sensing and ventricular pacing; oversensing of a very fast, disorganized, non-physiological signal at the level of the ventricular lead inhibiting ventricular pacing; absence of ventricular pause since the patient is not pacemaker-dependent (intrinsic QRS complexes remain viewable).
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