Fig 2. Comparison of intra-atrial activation intervals of non-PV trigger among RA, SEP and LA.
RA-CSp, intra-atrial activation interval from the earliest in RA to proximal CS; RA-CSd, intra-atrial activation interval from the earliest in RA to distal CS; RA, right atrium; SEP, atrial septum; LA, left atrium; CS, coronary sinus.