Upon receipt, the icd was interrogated, revealing the eos battery status, 256 charging cycles were recorded in the devices memory.The manufacturing process for this device was re-investigated and all production steps were performed accordingly.There was no sign of any inconsistency during the manufacturing process.Particularly the final acceptance test proved the device functions to be as specified.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.The analysis of the shock holter data showed that an amount of 127 charging cycles were performed by the device between 03:55 am and 08:05 am on december 13, 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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