Electroanatomical Mapping Systems

Effects of Electroanatomical Mapping Systems on St. Jude Medical Implantable Cardiac Rhythm Devices

Background

Electroanatomical cardiac mapping during EP catheter placements (also known as CARTO™) is based on magnetic technology and generates a magnetic field. The magnetic field emitter, mounted under operating tables, generates a low-intensity magnetic field, around 0.05 – 0.2 Gauss.

Potential effects

When a patient with an implantable pacemaker or implantable cardioverter defibrillator (ICD) is on an operating table with an Electroanatomical Mapping System, the magnetic field generated by the Electroanatomical Mapping System is not powerful enough to trigger asynchronous pacing in pacemakers or a magnet reversion in ICDs. The Electroanatomical Mapping System should not interfere with normal pacing performance or high voltage therapy. However, it can interfere with inductive (wanded) telemetry. RF telemetry (wireless) is not expected to have any interference with these systems.

If difficulty is encountered interrogating a patient’s device while in an operating room, it could be due to the presence of one of these mapping systems. It will be necessary to move the patient away from the magnetic field of the system or to turn the electroanatomical mapping system off in order to achieve a successful interrogation.

If you have any questions on this topic, please contact St. Jude Medical Technical Services at 800-722-3774.

PDF Effects of Electroanatomical Mapping Systems on St. Jude Medical Implantable Cardiac Rhythm Devices (17.9kb)
Rev. 02/10