McCormick D J, Shuck J W, Ansinelli R A
Pacing Clin Electrophysiol. 1987 Mar;10(2):372-7. doi: 10.1111/j.1540-8159.1987.tb05975.x.
A patient with tachy-brady syndrome manifested by paroxysmal atrial fibrillation and symptomatic sinus bradycardia and treated by VVI pacing developed pacemaker syndrome during episodes of ventricular pacing. His cardiac pacemaker was revised to a dual chamber system utilizing the new AV sequential DDI pacing mode which eliminated pacemaker-related tachycardias and totally abolished the pacemaker syndrome symptoms. There have been no further episodes of atrial fibrillation, possibly due to elimination of temporal dispersion of refractory periods during bradycardia. The propensity for atrial fibrillation has also been minimized by excluding competitive atrial stimulation during DVI pacing. The DDI mode provides the clinician increased utility and flexibility in the use of AV sequential pacing therapy.
一名患有阵发性心房颤动和症状性窦性心动过缓表现的心动过速-心动过缓综合征患者，接受VVI起搏治疗，在心室起搏发作期间出现起搏器综合征。他的心脏起搏器被修订为双腔系统，采用新的房室顺序DDI起搏模式，消除了与起搏器相关的心动过速，并完全消除了起搏器综合征症状。此后未再发生心房颤动发作，可能是由于消除了心动过缓期间不应期的时间离散。通过排除DVI起搏期间的竞争性心房刺激，心房颤动的倾向也已降至最低。DDI模式为临床医生在使用房室顺序起搏治疗时提供了更高的实用性和灵活性。
