Back-up Reset Mode of a Cardiac Resynchronization Therapy Defibrillator After Radiotherapy Diagnosed by Remote Monitoring: A Case Study
A 68-year-old man with a cardiac resynchronization therapy defibrillator underwent radiotherapy for colon cancer. The defibrillator’s absorbed dose was < 1Gy. Following a remote monitoring alert stating that the defibrillator was in a back-up reset mode, the defibrillator was successfully reprogrammed. Remote monitoring is useful for early detection of cardiac implantable electronic device dysfunction in patients treated with radiotherapy.