Figure 5. Plots of λ′ against DI.

Results obtained from typical (N= 1) WT (open symbols; black lines) and Scn5a+/− (filled symbols; grey lines) hearts in the RV epicardium (A) and RV endocardium (B), before (circles; continuous line) and following addition of flecainide (squares; dashed line) or quinidine (triangles; dotted line). The data displayed represent hearts showing the Mdn value of λ′max in the experimental group concerned.