《急诊每日一题》植入式转复和除颤装置(ICD)不适宜放电原因2021年3月
Question 问题:
Inappropriate ICD shocks account for 30% of all ICD therapies and may be due to non-malignant supraventricular arrhythmias or over-sensing. What are causes of ICD over-sensing?
不适宜植入式转复和除颤装置(ICD)放电占所有ICD放电的30%,可能是由于非恶性室上性心律失常或过度感应。什么会导致ICD过度感应?

Answer 答案:
True cardiac electrical signals (e.g. T-wave, double-sensing of very wide QRS complexes) and non-cardiac signals (eg. fractured lead, skeletal myopotentials, external electromagnetic interference) ()
真正的心脏电信号(如T波,非常宽QRS双感应)和非心脏信号(如导联断裂,骨骼肌肌点位,外界磁场干扰)
参考文献:
CJEM.2021;23:147