The purpose of this study is to compare the two options for management of ICDs (internal
cardioverter defibrillators) in patients undergoing procedures with electrocautery: (1)
programming ICD therapies "off," or (2) use of a magnet to suspend ICD therapies By comparing
these two techniques the investigators hope to demonstrate the efficiency of using an ICD
magnet protocol during perioperative management of patients undergoing electrocautery
procedures. Secondary purposes are to gain further information on health care resources,
incidence of EMI, handoff communications and to document lack of adverse events in either
Primary objective will be: ICD therapy "off times" will be less with the use of a magnet
protocol compared to an "off-on" protocol. Secondary objectives will be: (1) Healthcare
resources (time and costs of skilled personnel) will be less using a magnet protocol compared
to an off-on protocol, and (2) there will be no difference between adverse events in the
magnet protocol compared to an off-on protocol. The incidence of EMI and number of handoff
communications will be documented.
The investigators hypothesis is that the number of minutes with ICD therapies "off" will be
significantly less with magnet use. The investigators also expect health care resources to be
less with magnet use compared to reprogramming.