1Johns Hopkins Medical Institutions, Baltimore, MD, USA;2All India Institute of Medical Sciences, New Delhi,3Duke University Medical Centre, Durham, NC,1, 3 USA 2 India

Electromagnetic interference (EMI) can be defined as any signal, either biologic or non-biologic, that falls within a frequency spectrum that are being detected by the sensing circuitry of the pacemaker. They can interfere with the optimal function of the pacemaker and is always a concern for the patients with a pacemaker, since the risk of EMI is greatest in pacemaker dependent patients.