Edwards L M, Hauser R G
Pacing Clin Electrophysiol. 1981 May;4(3):309-12. doi: 10.1111/j.1540-8159.1981.tb03700.x.
When the Intermedics Cyberlith pulse generator is operating in its R-wave synchronous (VVT) mode, sensed events may trigger stimulus pulses or inhibit the output circuit. This dual mode response to sensed signals is the result of a variable timing cycle which includes an inhibit alert period (IAP) as well as a synchronous alert period (SAP). Sensed events occurring during the IAP result in inhibition of stimulus pulse output and resetting of the timing circuit. Consequently, during a continuous ECG rhythm strip one may observe synchronous and inhibited sensing responses and slowing of the pacing rate below the programmed rate of the pulse generator.
当Intermedics Cyberlith脉冲发生器以其R波同步（VVT）模式运行时，感知到的事件可能会触发刺激脉冲或抑制输出电路。对感知信号的这种双模式响应是一个可变定时周期的结果，该周期包括一个抑制警报期（IAP）以及一个同步警报期（SAP）。在IAP期间发生的感知事件会导致刺激脉冲输出的抑制和定时电路的重置。因此，在连续的心电图节律条上，人们可能会观察到同步和抑制的感知响应以及起搏速率低于脉冲发生器的编程速率。
