Wainwright R, Davies W, Tooley M
Pacing Clin Electrophysiol. 1984 Nov;7(6 Pt 2):1152-8. doi: 10.1111/j.1540-8159.1984.tb05676.x.
In 10 patients with intact retrograde (V-A) conduction (mean retrograde conduction time 296 +/- 45 msec), bipolar atrial electrograms were recorded simultaneously from three atrial sites (high right atrium [HRA], low right atrium [LRA], and right atrial appendage [RAA]) during sinus rhythm (anterograde electrogram) and paced ventricular rhythm (retrograde electrogram). Atrial electrograms were digitized and analyzed by a special feature detection program which uses sequential slew-rate changes to discriminate different analogue signals. In all patients, it was possible to distinguish anterograde and retrograde atrial depolarizations using the analogue or digital signal recorded from one and usually two [HRA and RAA] lead sites. Digital signal recognition was machine-based and fully automatic, and could be applied to the prevention of pacemaker-mediated tachycardia if incorporated into future microprocessor-based pulse generators.
在10例具有完整逆向（V-A）传导（平均逆向传导时间296±45毫秒）的患者中，在窦性心律（顺向心电图）和心室起搏心律（逆向心电图）期间，同时从三个心房部位（高位右心房[HRA]、低位右心房[LRA]和右心耳[RAA]）记录双极心房电图。心房电图通过一个特殊的特征检测程序进行数字化和分析，该程序利用连续的 slew 速率变化来区分不同的模拟信号。在所有患者中，使用从一个且通常是两个[HRA和RAA]导联部位记录的模拟或数字信号，能够区分顺向和逆向心房去极化。数字信号识别基于机器且完全自动，如果纳入未来基于微处理器的脉冲发生器中，可应用于预防起搏器介导的心动过速。
