Panel A: activation during a paced beat entraining the reentrant rhythm, as seen in Video 2. The format is similar to that in Figure4A. Panel B: activation of the same preparation by a paced ...

At the 2-week visit a test of 1:1 AV conduction was performed, with patients paced in DDD mode at 100 beats/min (bpm) and the AV delay programmed to 350 ms. AV conduction was considered intact ...