1. Slowing of ventricular rate (VR) associated with inferior vena cava–inferior atrial ganglionated plexus nerve activity (IVC-IAGPNA) discharge without right vagal nerve activity (RVNA) or left vagal nerve activity (LVNA) discharge.
Slowing of ventricular rate (VR) associated with inferior vena cava–inferior atrial ganglionated plexus nerve activity (IVC-IAGPNA) discharge without right vagal nerve activity (RVNA) or left vagal nerve activity (LVNA) discharge. A, Independent IVC-IAGPNA resulted in reduction of VR, whereas RVNA and LVNA discharge without IVC-IAGPNA discharge was associated with rapid VR. One dog showed a linear relation between LVNA and RVNA (B) and an L-shaped relation between RVNA and LVNA with IVC-IAGPNA (C and D). B, RVNA and LVNA showed a linear relation when VR was ≥100 bpm (blue dots). C and D,Blue and red dots are observed at both arms of the L-shaped correlation, unlike that shown in Figure 4. HR indicates heart rate; LEGM, local electrogram.
Hyung-Wook Park et al. Circ Arrhythm Electrophysiol. 2012;5:
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