Fig. 5.

Epicardial activation latency (A) and conduction velocity (CV) (B) obtained in response to S1 stimulation, VERP/latency ratio (C) and wavelength of excitation (VERP × CV) (D), obtained during PES, before (n = 20) and 120 s after introduction of 0.1 mM (n = 5), 0.5 mM (n = 5), 1 mM (n = 6), and 2 mM (n = 5) heptanol. Asterisks indicate values that were significantly altered by heptanol (ANOVA, P < 0.05)