The product was returned to boston scientific, and a subsequent laboratory analysis was conducted.The analysis determined that this device exhibited sensing of chronic high atrial rates which impacted battery longevity over time.Chronic high atrial sensing rates, such as for patients with chronic atrial fibrillation, can reduce longevity in devices that are programmed with atrial sensing on.Device power consumption increases proportional to the additional processing for sensed atrial events.As a result, the high rate of atrial sensing can result in the longevity being lower than expected, as observed with this device.
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