During an in-clinic follow-up, noise which resulted in oversensing and pacing inhibition was observed on the right ventricular (rv) and right atrial (ra) channels of the device.Additionally, the patient experienced pre-syncopal episodes and dizziness.The suspected cause of the noise was due to a header anomaly.The device was explanted and replaced.The patient was stable.
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Reported event of sensing noise, no lv output, and header anomaly were not confirmed.The device voltage was above elective replacement indicator (eri) level upon receipt.Analysis of the device image indicated the device was within normal range of operation.Further analysis performed, including output verification, sensitivity test, cross talk noise test, and inspection of header and connectors showed normal device characteristics with no anomaly contributing to reported events of sensing or pacing problem.Assessment of total projected longevity was performed, and the device was found to have appropriate remaining longevity.
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