Effects of Dantrolene on Arrhythmogenicity in Isolated Regional Ischemia-Reperfusion Rabbit Hearts with or without Pacing-Induced Heart Failure

Figure 3

Effects of dantrolene on CV and anisotropic conduction. (a) and (b) are representative examples of isochronal maps in the HF and non-HF groups, respectively. Rate-dependent conduction slowing is shown in both groups. The number under each subpanel is the PCL. Dashed lines indicate the border of IR zone; red arrows indicate the directions of wavefront propagation. S: slow; F: fast.

(a)

(b)