Discussion
The PVC response option is meant to avoid PVC-triggered PMT by the
pacemakers. The major principle is to extend PVARP after PVC so as to
curb the atrial arrhythmia caused by competitive AP[3]. A Pace on
PVC function from St. Jude[4-6].
In this case report, Victory XL DR 5816, the Dual Chamber Pacemaker from
St. Jude was implanted into the patient 3 years ago before this reported
arrhythmia. The patient got interposition PVC frequently, triggering the
special PVC response of the pacemaker. Resultantly, Sinus P wave lied
within PAVB and then VP released in AVP, contributing to serious
arrhythmia. Further, the sinus P wave occurred in CDW, which induced
VSS, aggravating the arrhythmia symptoms.
Recent years witness the increasing special functions of pacemakers, all
intended for the improvement in functions and safety. However, the
connections between special functions and arrythmia make the ECG
analysis more complicated. Clinical doctors need to get in-depth
understanding of special functions of pacemakers and value the follow-up
programming controls as well as logic analysis so as to enable
themselves to customize the optimal programming control for each
patient. Only by doing this, clinicians can provide optimal treatment
for arrhythmia patients.