S-ICD oversensing detected by remote monitoring using a new atrial fibrillation diagnostic algorithm

A 64-year-old male with a high body mass index, and subcutaneous implantable cardioverter defibrillator, (S-ICD) presented with a remote transmission of inappropriately diagnosed AF episodes, due to oversensing of P and T waves. The AF monitor can be an early warning for inappropriate sensing. Oversensing, due to small amplitude signals, can be caused by the lead position not being adequately opposed to the sternum.