Objective:1) To explore the expression of nerve growth factor (NGF) and its effect on neural remodeling after rapid right atrial pacing in rabbits.2) Spectral analysis of HRV included determination of total power spectral density (mesc2),integral powers of spectrum densities for high frequency (mesc2) taken for the marker of mainly vagal activity,forlow frequencies (mesc2) taken for the marker of mainly sympathetic activity.
Methods:1) The rapid right atrial pacing rabbits were classifed into 3 groups (...