Figure 6.
The relationship between autonomic interactions at baseline and the susceptibility to pacing induced sustained AF. A, Better SGNA-VNA correlation is associated with shorter periods of atrial tachypacing needed for induction of sustained AF. The Group 1 dogs (circles) are exclusively in the left upper quadrant of the scatter plot whereas the Group 2 dogs (triangles) are entirely in the right lower one. Dogs paced at 1200 bpm are labeled with filled circles/triangles while those paced at 640 bpm are labeled with unfilled circles/triangles. B, Poorer VNA-SLGPNA correlation is associated with shorter periods of atrial rapid pacing.