Upon receipt, the icd was interrogated, revealing the eos battery status.The device was implanted for approximately 43 months and 235 charging cycles were recorded in the devices memory.The memory content of the device was inspected.During the analysis of the available iegms, noise was observed in the right ventricular channel, leading to multiple charging cycles that partially resulted in shock deliveries.Therefore, a sensing test was performed, and the device sensed the attached heart signals free of noise, proving the sensing function of the icd to be normal and as expected.The inspection of the shock holter data showed that an amount of 127 charging cycles were performed by the device between 04:47 am and and 06:04 am on december 28, 2021.As a result of that fast-successive charging the eos battery status had occurred.The amount of charge taken from the battery was verified, revealing that the battery condition is as expected.The current consumption was also inspected and found to be normal.There was no indication of a device malfunction.In conclusion, in the available iegms the occurrence of noise was observed in the right ventricular channel.This led to fast successive charging cycles that partially resulted in shock deliveries.The activation of the eos status resulted from that fast-successive charging.However, there was no indication of an icd malfunction.
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