Edinburgh Napier University

  Regular physical activity for secondary prevention in cardiovascular disease has many well-recognised benefits, with declines in physical activity being associated with worsening cardiovascular disease, suboptimal treatment or worsening comorbidities that might be rectified by early intervention. Most cardiovascular implantable electronic devices (CIED) now have the ability to detect, analyse and interpret physical activity data through an inbuilt accelerometer. Currently, these data are not being utilised to their full potential. We present three cases that demonstrate some of the possible uses of CIED-collected physical-activity data. These data have the potential to detect a deteriorating patient, to monitor the effects of an intervention, and/or provide motivational feedback to a patient. However, for the data to be used in this manner in the future, greater transparency from manufacturers and robust validation studies will be needed.