Treatment arrhythmia cordis system and method are disclosed. In one embodiment, a kind of LCP include a shell, multiple electrodes issue sense electrical signal from shell, energy-storage module, be set in the shell And a control module, it is arranged in the shell and is operatively coupled to the multiple electrode. The control module can be set to receive electric signal, via in two or more multiple electrodes, and determine whether that the electric signal received indicates order to deliver ATP LCP treatments. If the electric signal received indicates order to deliver ATP LCP treatments, control module can be otherwise determined that triggering ATP treatment LCP modes enable. If being triggered ATP treatment modes, control module makes LCP and ATP treatment conveyings pass through multiple electrodes.
