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 ECG follow-up analysis is required to
provide individualized optimal program control and so is appropriate
administrations of special functions of pacemaker so as to better
provide optimal clinical guidance for patients with arrhythmia.