It was reported that the patient felt some palpitations and minor discomfort due to occasional unipolar pacing and presented in clinic for routine follow up.Upon interrogation, it was noted that the pacemaker was in backup vvi and the device was nearing eri.The patient was moving to a new home and the cause of the backup vvi status was unknown, but the device image indicated that it was probably caused by an event que overflow (eqo).A firmware download was performed, and the device was restored to its normal function.The patient was in stable condition post interrogation.
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