Parsonnet V, Myers G H, Kresh Y M
Pacing Clin Electrophysiol. 1980 Jul;3(4):406-17. doi: 10.1111/j.1540-8159.1980.tb05249.x.
The intra-atrial electrograms (P-wave and QRS complex) of newly implanted electrodes were recorded, and the time and frequency domain characteristics compared. The sensing impedance properties of the atrial electrode were studied in relation to the characteristics of both atrial and ventricular electrograms, and specific differences between the P and R-waves were identified. These values, particularly the amplitude and frequency components, were sufficiently distinct to make differentiation by pacemaker sensing circuits selective and reliable.
记录新植入电极的心房电图（P波和QRS复合波），并比较其时域和频域特征。研究了心房电极的感知阻抗特性与心房和心室电图特征的关系，并确定了P波和R波之间的具体差异。这些值，特别是幅度和频率成分，足够明显，使得起搏器感知电路能够进行选择性和可靠的区分。
