Additional information: b5 investigation: an investigation was not possible because we have not received sample for investigation.According to the clinic, it was sent to us.Unfortunately, we have not received the sample.A request for investigation made at the german post office, was without feedback.The product details (lot, serial number) are also not known to us.However, it is possible that protein deposits inside the valve affect the function of the progav 2.0 shuntsystem.As described in scientific literature, the problem encountered is one of the known, inevitable risks of hc-therapy by shunt implants.
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