Department of Electrocardiographic & Cardiac Examination, Heart Center, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China.
Alberta Institute, Wenzhou Medical University, Wenzhou, Zhejiang, China.
Ann Noninvasive Electrocardiol. 2024 Nov;29(6):e70015. doi: 10.1111/anec.70015.
Two patients were received ICDs (Biotronic Iforia7 VR-TDX). Holter analysis revealed pacing spikes, which occurred regularly at 100 ms intervals following QRS complexes, with consecutive 1024 test pulses at hourly intervals during a specific time, and the VP was 0%.
By analyzing the dynamic electrocardiogram and consulting relevant literature, it was found that this is a feature of the ICD that measures thoracic impedance.
This phenomenon is a special function for the purpose of transthoracic impedance measurement, which can monitor the heart failure.
This phenomenon should not be regarded as an interference signal or an abnormal sign of pacemaker malfunction.
两位患者均植入了 Biotronic Iforia7 VR-TDX 型 ICD。动态心电图分析显示，在 QRS 波群后以 100ms 的间隔规律出现起搏电脉冲，每隔 1 小时以连续 1024 个测试脉冲的方式在特定时间内进行，且 VP 为 0%。
通过分析动态心电图并查阅相关文献，发现这是 ICD 测量胸阻抗的特征。
这种现象是为了进行经胸阻抗测量的特殊功能，可用于监测心力衰竭。
这种现象不应被视为干扰信号或起搏器故障的异常迹象。
