Chronotropic Modulation of the Source-Sink Relationship of Sinoatrial-Atrial Impulse Conduction and Its Significance to Initiation of AF: A One-Dimensional Model Study

Figure 9

Conduction delay and entrainment of repolarization. (a) A single conducted beat (SAN in red and atrial in black), measured in steady state conditions and for and  MΩ (see Section 3), is shown for all simulated treatments. (b) Delay between the time-to-peak of the first time derivative for the source and sink APs is reported against normalized (to NT) values of P&D area. (c) Same representation for the delay between measured in the 2 APs for each treatment.

(a)

(b)

(c)