Logic Analysis of Arrhythmia Triggered by Pacemaker Special Functions - An Educational Presentation
Yi Liu, Xiaojing Yuan, Yi Liu, Xiaojing Yuan
Abstract
Dual-chamber pacemaker is a fully automatic pacemaker with the function of simulating human physiological pacing. It regulates pacing by programming different refractory periods and various special functions, which are closely related to arrhythmia. After in-depth understanding of these special functions, regular electrocardiogram follow-up analysis is required to provide individualized optimal program control and so is appropriate the administration of the pacemaker's special functions to better provide optimal clinical guidance for patients with arrhythmia.
Keywords: Arrhythmias, Cardiac; Electrocardiography; Follow-up Studies; Pacemaker, Artificial.
Conflict of interest statement
No conflict of interest.
Figures
Sinus P wave was transmitted to ventricle and premature ventricular contraction (PVC) occurred. AR=atrial refractory
P wave occurred in absolute refractory period and atrial pacing (AP) was released in ventriculoatrial (VA) interval
Atrial pacing (AP) overlapped with sinus QRS wave within crosstalk detection window and ventricular safety standby function was triggered. AR=atrial refractory; VP=ventricular pacing
Demonstrations of the special function, A pace on premature ventricular contraction (PVC) of the pacemaker. When PVC occurs, 480-ms post-ventricular atrial refractory period (PVARP) happens thereafter, during which the absolute refractory period is 150 ms and the relative refractory period is 330 ms. If the P wave occurs during the relative refractory period, the P wave is called retrograde P wave and atrial pacing will be released at 330 ms after the retrograde P wave. AVD=atrial-ventricular delay
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Source: PubMed