The anecdotal evidence in our two patients suggests that reduction of atrial size and atrial stretch after CRT and hence the atrial anatomical-electrical remodeling is the underlying mechanism for the improvement of rhythm control of AF.

• 心房颤动的控制得以进步的机转可能是由于在放置心脏再同步化心律调节器后，心房之张力及大小减小所造成的结果。