I have always wondered if this was an urban myth. It never stopped me using the hyfrecator before!
Investigation of Hyfrecators and Their In Vitro Interference with Implantable Cardiac Devices
CHRISTOPHER WEYER, DO,* RONALD J. SIEGLE, MD,†‡ AND GUILLAUME GIRARD P. ENG, EMI-EMC§
BACKGROUND Guidelines exist for minimizing potential electromagnetic interference (EMI) with electrosurgical equipment in patients with cardiac rhythm management (CRM) devices. These guidelines encompass all electrosurgical devices but are not speciﬁc for hyfrecators.
OBJECTIVE To investigate the potential interference of CRM devices by hyfrecators.
MATERIALS AND METHODS Using a collagen-based saline gel, three implantable pulse generators (pacemakers) and three implantable cardioverter deﬁbrillators were tested to measure the EMI from two commonly used hyfrecators. The six devices were tested using the hyfrecator under normal use settings and on maximum power.
RESULTS Hyfrecators did not interfere with deﬁbrillators and affected pacemakers only when used in close proximity to the device. For the pacemakers, atrial inhibition was observed at a distance of 3 cm on maximum hyfrecator settings and 1 cm at normal use settings. Ventricular inhibition occurred in very close proximity to the device (<1 cm) or in direct contact.
CONCLUSION Hyfrecators are safe to use in patients with deﬁbrillators and can be used in pacemaker patients within 2 inches of the device perimeter.