It was reported that a ventricular tachycardia (vt) episode was not stored on the implantable cardioverter defibrillator (icd).The patient was wearing a holter monitor, which detected the vt episode.Technical services (ts) reviewed the data with the physician and noted that the vt episode rate was 150 bpm.This vt episode did not meet the programmed duration criteria to be stored as a vt episode.The reason for the holter monitor remains unknown, and further information was requested from the field.This investigation will be updated when further information becomes available.This icd remains in-service.No adverse patient effects were reported.
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