Key result
Loop recorder patient activator unexpectedly triggers pacemaker electrogram storage during symptomatic palpitations.
Case Report (n=1)
Medtronic ILR patient activators can incidentally activate specific Medtronic pacemakers and ICDs, providing an unexpected but convenient method for patients to correlate symptoms with device EGMs.
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Clinicians should recognize possible incidental pacemaker activation by ILR activators; leaves open whether this interaction can be harnessed diagnostically.
Some patients continue to experience palpitations, near syncope, and syncope after pacemaker or implantable cardioverter-defibrillator (ICD) implantation. In these patients it is very useful to correlate symptoms with arrhythmias and to confirm that their implanted device is working appropriately and is programmed optimally. External event monitoring can be a helpful adjunct in this evaluation but is inconvenient and not tolerated well by many patients. A valuable alternative for patients who already have a specific Medtronic pacemaker or ICD may be the use of a Medtronic patient activator to mark symptomatic events for direct, convenient correlation of symptoms and rhythms.
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Ketha et al. (2017) conducted a case report in Palpitations in patient with implanted loop recorder and pacemaker (n=1). Medtronic Patient Assistant Model PA96000 (symptom marker) was evaluated. The Medtronic patient activator, intended for implantable loop recorders, incidentally activated an implanted pacemaker to record a diagnostic electrogram during symptomatic palpitations.
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