Fig. 9: Simulation results of APD and CV restitution curves and the rate adaption curves of QT interval under wild-type, T618I mutation, and quinidine conditions.

A APD restitution curves obtained from the S1–S2 protocol (Ai) and the dynamic protocol (Aii), where APDs were plotted against PCL and DI, respectively. B CV restitution curves obtained from the S1–S2 protocol (Bi) and the dynamic protocol (Bii). C The rate adaption curves of QT interval.