Question?問題：

Patients with an ICD in place in whom the rate of ventricular tachycardia is below the ICD therapy threshold may present with monomorphic VT that is not detected or treated by the ICD. What is the typical VT rate threshold for ICDs??

如果植入式轉(zhuǎn)復(fù)除顫裝置（ICD）患者出現(xiàn)低于ICD放電閾值的室速心率，可能會(huì)是ICD不能查出或放電的單形性室速。ICD?檢測(cè)典型室速的閾值是什么？

Answer?答案：

It is typically 170-200 beats per minute.?

通常是每分鐘170-200次。

參考文獻(xiàn)：

CJEM. 2021;23:147